add kobakei library to witness

Update bridge list, test for slow bridges

See merge request briar/briar!936

.idea/runConfigurations/All_tests_in_bramble_android.xml

@@ -1,6 +1,5 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="All tests in bramble-android" type="AndroidJUnit" factoryName="Android JUnit">
-    <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
     <module name="bramble-android" />
     <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
     <option name="ALTERNATIVE_JRE_PATH" />
@@ -11,12 +10,10 @@
     <option name="VM_PARAMETERS" value="-ea" />
     <option name="PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="file://$PROJECT_DIR$/bramble-android" />
-    <option name="ENV_VARIABLES" />
     <option name="PASS_PARENT_ENVS" value="true" />
     <option name="TEST_SEARCH_SCOPE">
       <value defaultName="singleModule" />
     </option>
-    <envs />
     <patterns />
     <method />
   </configuration>

.idea/runConfigurations/All_tests_in_bramble_api.xml

@@ -1,6 +1,5 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="All tests in bramble-api" type="AndroidJUnit" factoryName="Android JUnit">
-    <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
     <module name="bramble-api" />
     <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
     <option name="ALTERNATIVE_JRE_PATH" />
@@ -11,12 +10,10 @@
     <option name="VM_PARAMETERS" value="-ea" />
     <option name="PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="file://$PROJECT_DIR$/bramble-api" />
-    <option name="ENV_VARIABLES" />
     <option name="PASS_PARENT_ENVS" value="true" />
     <option name="TEST_SEARCH_SCOPE">
       <value defaultName="singleModule" />
     </option>
-    <envs />
     <patterns />
     <method />
   </configuration>

.idea/runConfigurations/All_tests_in_bramble_core.xml

@@ -1,6 +1,5 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="All tests in bramble-core" type="AndroidJUnit" factoryName="Android JUnit">
-    <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
     <module name="bramble-core" />
     <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
     <option name="ALTERNATIVE_JRE_PATH" />
@@ -11,12 +10,10 @@
     <option name="VM_PARAMETERS" value="-ea" />
     <option name="PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="file://$PROJECT_DIR$/bramble-core" />
-    <option name="ENV_VARIABLES" />
     <option name="PASS_PARENT_ENVS" value="true" />
     <option name="TEST_SEARCH_SCOPE">
       <value defaultName="singleModule" />
     </option>
-    <envs />
     <patterns />
     <method />
   </configuration>

.idea/runConfigurations/All_tests_in_bramble_java.xml

@@ -1,6 +1,5 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="All tests in bramble-java" type="AndroidJUnit" factoryName="Android JUnit">
-    <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
     <module name="bramble-java" />
     <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
     <option name="ALTERNATIVE_JRE_PATH" />
@@ -11,12 +10,10 @@
     <option name="VM_PARAMETERS" value="-ea -Djava.library.path=libs" />
     <option name="PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="file://$PROJECT_DIR$/bramble-java" />
-    <option name="ENV_VARIABLES" />
     <option name="PASS_PARENT_ENVS" value="true" />
     <option name="TEST_SEARCH_SCOPE">
       <value defaultName="singleModule" />
     </option>
-    <envs />
     <patterns />
     <method />
   </configuration>

.idea/runConfigurations/All_tests_in_briar_android.xml

@@ -1,6 +1,5 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="All tests in briar-android" type="AndroidJUnit" factoryName="Android JUnit">
-    <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
     <module name="briar-android" />
     <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
     <option name="ALTERNATIVE_JRE_PATH" />
@@ -11,12 +10,10 @@
     <option name="VM_PARAMETERS" value="-ea" />
     <option name="PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="file://$PROJECT_DIR$/briar-android" />
-    <option name="ENV_VARIABLES" />
     <option name="PASS_PARENT_ENVS" value="true" />
     <option name="TEST_SEARCH_SCOPE">
       <value defaultName="singleModule" />
     </option>
-    <envs />
     <patterns />
     <method />
   </configuration>

.idea/runConfigurations/All_tests_in_briar_core.xml

@@ -1,6 +1,5 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="All tests in briar-core" type="AndroidJUnit" factoryName="Android JUnit">
-    <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
     <module name="briar-core" />
     <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
     <option name="ALTERNATIVE_JRE_PATH" />
@@ -11,12 +10,10 @@
     <option name="VM_PARAMETERS" value="-ea" />
     <option name="PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="file://$PROJECT_DIR$/briar-core" />
-    <option name="ENV_VARIABLES" />
     <option name="PASS_PARENT_ENVS" value="true" />
     <option name="TEST_SEARCH_SCOPE">
       <value defaultName="singleModule" />
     </option>
-    <envs />
     <patterns />
     <method />
   </configuration>

.idea/runConfigurations/H2_Performance_Test.xml

@@ -1,6 +1,5 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="H2 Performance Test" type="AndroidJUnit" factoryName="Android JUnit">
-    <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
     <module name="bramble-core" />
     <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
     <option name="ALTERNATIVE_JRE_PATH" />
@@ -11,12 +10,10 @@
     <option name="VM_PARAMETERS" value="-ea" />
     <option name="PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="" />
-    <option name="ENV_VARIABLES" />
     <option name="PASS_PARENT_ENVS" value="true" />
     <option name="TEST_SEARCH_SCOPE">
       <value defaultName="singleModule" />
     </option>
-    <envs />
     <patterns />
     <method />
   </configuration>

.idea/runConfigurations/HyperSQL_Performance_Test.xml

@@ -1,6 +1,5 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="HyperSQL Performance Test" type="AndroidJUnit" factoryName="Android JUnit">
-    <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
     <module name="bramble-core" />
     <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
     <option name="ALTERNATIVE_JRE_PATH" />
@@ -11,12 +10,10 @@
     <option name="VM_PARAMETERS" value="-ea" />
     <option name="PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="" />
-    <option name="ENV_VARIABLES" />
     <option name="PASS_PARENT_ENVS" value="true" />
     <option name="TEST_SEARCH_SCOPE">
       <value defaultName="singleModule" />
     </option>
-    <envs />
     <patterns />
     <method />
   </configuration>

bramble-api/src/main/java/org/briarproject/bramble/api/Nameable.java

@@ -0,0 +1,10 @@
+package org.briarproject.bramble.api;
+
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+
+@NotNullByDefault
+public interface Nameable {
+
+	String getName();
+
+}

bramble-api/src/main/java/org/briarproject/bramble/api/UnsupportedVersionException.java

@@ -1,9 +0,0 @@
-package org.briarproject.bramble.api;
-
-import java.io.IOException;
-
-/**
- * An exception that indicates an unrecoverable version mismatch.
- */
-public class UnsupportedVersionException extends IOException {
-}

bramble-api/src/main/java/org/briarproject/bramble/api/identity/Author.java

@@ -1,5 +1,6 @@
 package org.briarproject.bramble.api.identity;
 
+import org.briarproject.bramble.api.Nameable;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.util.StringUtils;
 
@@ -13,7 +14,7 @@ import static org.briarproject.bramble.api.identity.AuthorConstants.MAX_PUBLIC_K
  */
 @Immutable
 @NotNullByDefault
-public class Author {
+public class Author implements Nameable {
 
 	public enum Status {
 		NONE, ANONYMOUS, UNKNOWN, UNVERIFIED, VERIFIED, OURSELVES

bramble-api/src/main/java/org/briarproject/bramble/api/keyagreement/KeyAgreementConstants.java

@@ -3,7 +3,13 @@ package org.briarproject.bramble.api.keyagreement;
 public interface KeyAgreementConstants {
 
 	/**
-	 * The current version of the BQP protocol. Version number 89 is reserved.
+	 * The version of the BQP protocol used in beta releases. This version
+	 * number is reserved.
+	 */
+	byte BETA_PROTOCOL_VERSION = 89;
+
+	/**
+	 * The current version of the BQP protocol.
 	 */
 	byte PROTOCOL_VERSION = 4;
 

bramble-api/src/main/java/org/briarproject/bramble/api/keyagreement/UnsupportedVersionException.java

@@ -0,0 +1,20 @@
+package org.briarproject.bramble.api.keyagreement;
+
+import java.io.IOException;
+
+/**
+ * Thrown when a QR code that has been scanned uses a protocol version that is
+ * not supported.
+ */
+public class UnsupportedVersionException extends IOException {
+
+	private final boolean tooOld;
+
+	public UnsupportedVersionException(boolean tooOld) {
+		this.tooOld = tooOld;
+	}
+
+	public boolean isTooOld() {
+		return tooOld;
+	}
+}

bramble-api/src/main/java/org/briarproject/bramble/util/StringUtils.java

@@ -153,4 +153,15 @@ public class StringUtils {
 		return new String(c);
 	}
 
+
+	public static String getRandomBase32String(int length) {
+		char[] c = new char[length];
+		for (int i = 0; i < length; i++) {
+			int character = random.nextInt(32);
+			if (character < 26) c[i] = (char) ('A' + character);
+			else c[i] = (char) ('2' + (character - 26));
+		}
+		return new String(c);
+	}
+
 }

bramble-core/src/main/java/org/briarproject/bramble/account/AccountManagerImpl.java

@@ -159,8 +159,7 @@ class AccountManagerImpl implements AccountManager {
 	@Override
 	public boolean createAccount(String name, String password) {
 		synchronized (stateChangeLock) {
-			if (hasDatabaseKey())
-				throw new AssertionError("Already have a database key");
+			// TODO don't allow creating another account if one already exists
 			LocalAuthor localAuthor = identityManager.createLocalAuthor(name);
 			identityManager.registerLocalAuthor(localAuthor);
 			SecretKey key = crypto.generateSecretKey();
@@ -183,7 +182,6 @@ class AccountManagerImpl implements AccountManager {
 			LOG.info("Deleting account");
 			IoUtils.deleteFileOrDir(databaseConfig.getDatabaseKeyDirectory());
 			IoUtils.deleteFileOrDir(databaseConfig.getDatabaseDirectory());
-			databaseKey = null;
 		}
 	}
 

bramble-core/src/main/java/org/briarproject/bramble/keyagreement/PayloadParserImpl.java

@@ -1,13 +1,13 @@
 package org.briarproject.bramble.keyagreement;
 
 import org.briarproject.bramble.api.FormatException;
-import org.briarproject.bramble.api.UnsupportedVersionException;
 import org.briarproject.bramble.api.data.BdfList;
 import org.briarproject.bramble.api.data.BdfReader;
 import org.briarproject.bramble.api.data.BdfReaderFactory;
 import org.briarproject.bramble.api.keyagreement.Payload;
 import org.briarproject.bramble.api.keyagreement.PayloadParser;
 import org.briarproject.bramble.api.keyagreement.TransportDescriptor;
+import org.briarproject.bramble.api.keyagreement.UnsupportedVersionException;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.plugin.BluetoothConstants;
 import org.briarproject.bramble.api.plugin.LanTcpConstants;
@@ -21,6 +21,7 @@ import java.util.List;
 import javax.annotation.concurrent.Immutable;
 import javax.inject.Inject;
 
+import static org.briarproject.bramble.api.keyagreement.KeyAgreementConstants.BETA_PROTOCOL_VERSION;
 import static org.briarproject.bramble.api.keyagreement.KeyAgreementConstants.COMMIT_LENGTH;
 import static org.briarproject.bramble.api.keyagreement.KeyAgreementConstants.PROTOCOL_VERSION;
 import static org.briarproject.bramble.api.keyagreement.KeyAgreementConstants.TRANSPORT_ID_BLUETOOTH;
@@ -43,8 +44,11 @@ class PayloadParserImpl implements PayloadParser {
 		// First byte: the protocol version
 		int protocolVersion = in.read();
 		if (protocolVersion == -1) throw new FormatException();
-		if (protocolVersion != PROTOCOL_VERSION)
-			throw new UnsupportedVersionException();
+		if (protocolVersion != PROTOCOL_VERSION) {
+			boolean tooOld = protocolVersion < PROTOCOL_VERSION ||
+					protocolVersion == BETA_PROTOCOL_VERSION;
+			throw new UnsupportedVersionException(tooOld);
+		}
 		// The rest of the payload is a BDF list with one or more elements
 		BdfReader r = bdfReaderFactory.createReader(in);
 		BdfList payload = r.readList();

bramble-core/src/main/resources/bridges

@@ -2,7 +2,7 @@ Bridge 131.252.210.150:8081 0E858AC201BF0F3FA3C462F64844CBFFC7297A42
 Bridge 67.205.189.122:8443 12D64D5D44E20169585E7378580C0D33A872AD98
 Bridge 45.32.148.146:8443 0CE016FB2462D8BF179AE71F7D702D09DEAC3F1D
 Bridge 148.251.90.59:7510 019F727CA6DCA6CA5C90B55E477B7D87981E75BC
-Bridge 195.91.239.8:9001 BA83F62551545655BBEBBFF353A45438D73FD45A
 Bridge 45.55.1.74:8443 6F18FEFBB0CAECD5ABA755312FCCB34FC11A7AB8
-Bridge 97.107.131.168:65341 DCDA8A5F1E2C50A6756A58462E5CF4B6B2DFDE26
-Bridge 85.229.131.78:444 50E433CCC5FEC11CC34CB4D92033561E065EA106
+Bridge 85.229.131.78:444 50E433CCC5FEC11CC34CB4D92033561E065EA106
+Bridge 178.62.62.193:8443 391B1F9B6A28A1C5FAE1872283985F975E5DB029
+Bridge 45.76.29.92:8443 ECF1DD51A46FDEF2C50CED992EEEAE8DED18DA0C

bramble-core/src/test/java/org/briarproject/bramble/keyagreement/PayloadParserImplTest.java

@@ -0,0 +1,156 @@
+package org.briarproject.bramble.keyagreement;
+
+import org.briarproject.bramble.api.Bytes;
+import org.briarproject.bramble.api.FormatException;
+import org.briarproject.bramble.api.data.BdfList;
+import org.briarproject.bramble.api.data.BdfReader;
+import org.briarproject.bramble.api.data.BdfReaderFactory;
+import org.briarproject.bramble.api.keyagreement.Payload;
+import org.briarproject.bramble.api.keyagreement.UnsupportedVersionException;
+import org.briarproject.bramble.test.BrambleMockTestCase;
+import org.jmock.Expectations;
+import org.junit.Test;
+
+import java.io.ByteArrayInputStream;
+
+import static org.briarproject.bramble.api.keyagreement.KeyAgreementConstants.BETA_PROTOCOL_VERSION;
+import static org.briarproject.bramble.api.keyagreement.KeyAgreementConstants.COMMIT_LENGTH;
+import static org.briarproject.bramble.api.keyagreement.KeyAgreementConstants.PROTOCOL_VERSION;
+import static org.briarproject.bramble.test.TestUtils.getRandomBytes;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+public class PayloadParserImplTest extends BrambleMockTestCase {
+
+	private final BdfReaderFactory bdfReaderFactory =
+			context.mock(BdfReaderFactory.class);
+	private final BdfReader bdfReader = context.mock(BdfReader.class);
+
+	private final PayloadParserImpl payloadParser =
+			new PayloadParserImpl(bdfReaderFactory);
+
+	@Test(expected = FormatException.class)
+	public void testThrowsFormatExceptionIfPayloadIsEmpty() throws Exception {
+		payloadParser.parse(new byte[0]);
+	}
+
+	@Test
+	public void testThrowsUnsupportedVersionExceptionForOldVersion()
+			throws Exception {
+		try {
+			payloadParser.parse(new byte[] {PROTOCOL_VERSION - 1});
+			fail();
+		} catch (UnsupportedVersionException e) {
+			assertTrue(e.isTooOld());
+		}
+	}
+
+	@Test
+	public void testThrowsUnsupportedVersionExceptionForBetaVersion()
+			throws Exception {
+		try {
+			payloadParser.parse(new byte[] {BETA_PROTOCOL_VERSION});
+			fail();
+		} catch (UnsupportedVersionException e) {
+			assertTrue(e.isTooOld());
+		}
+	}
+
+	@Test
+	public void testThrowsUnsupportedVersionExceptionForNewVersion()
+			throws Exception {
+		try {
+			payloadParser.parse(new byte[] {PROTOCOL_VERSION + 1});
+			fail();
+		} catch (UnsupportedVersionException e) {
+			assertFalse(e.isTooOld());
+		}
+	}
+
+	@Test(expected = FormatException.class)
+	public void testThrowsFormatExceptionForEmptyList() throws Exception {
+		context.checking(new Expectations() {{
+			oneOf(bdfReaderFactory).createReader(
+					with(any(ByteArrayInputStream.class)));
+			will(returnValue(bdfReader));
+			oneOf(bdfReader).readList();
+			will(returnValue(new BdfList()));
+		}});
+
+		payloadParser.parse(new byte[] {PROTOCOL_VERSION});
+	}
+
+	@Test(expected = FormatException.class)
+	public void testThrowsFormatExceptionForDataAfterList()
+			throws Exception {
+		byte[] commitment = getRandomBytes(COMMIT_LENGTH);
+
+		context.checking(new Expectations() {{
+			oneOf(bdfReaderFactory).createReader(
+					with(any(ByteArrayInputStream.class)));
+			will(returnValue(bdfReader));
+			oneOf(bdfReader).readList();
+			will(returnValue(BdfList.of(new Bytes(commitment))));
+			oneOf(bdfReader).eof();
+			will(returnValue(false));
+		}});
+
+		payloadParser.parse(new byte[] {PROTOCOL_VERSION});
+	}
+
+	@Test(expected = FormatException.class)
+	public void testThrowsFormatExceptionForShortCommitment()
+			throws Exception {
+		byte[] commitment = getRandomBytes(COMMIT_LENGTH - 1);
+
+		context.checking(new Expectations() {{
+			oneOf(bdfReaderFactory).createReader(
+					with(any(ByteArrayInputStream.class)));
+			will(returnValue(bdfReader));
+			oneOf(bdfReader).readList();
+			will(returnValue(BdfList.of(new Bytes(commitment))));
+			oneOf(bdfReader).eof();
+			will(returnValue(true));
+		}});
+
+		payloadParser.parse(new byte[] {PROTOCOL_VERSION});
+	}
+
+	@Test(expected = FormatException.class)
+	public void testThrowsFormatExceptionForLongCommitment()
+			throws Exception {
+		byte[] commitment = getRandomBytes(COMMIT_LENGTH + 1);
+
+		context.checking(new Expectations() {{
+			oneOf(bdfReaderFactory).createReader(
+					with(any(ByteArrayInputStream.class)));
+			will(returnValue(bdfReader));
+			oneOf(bdfReader).readList();
+			will(returnValue(BdfList.of(new Bytes(commitment))));
+			oneOf(bdfReader).eof();
+			will(returnValue(true));
+		}});
+
+		payloadParser.parse(new byte[] {PROTOCOL_VERSION});
+	}
+
+	@Test
+	public void testAcceptsPayloadWithNoDescriptors() throws Exception {
+		byte[] commitment = getRandomBytes(COMMIT_LENGTH);
+		context.checking(new Expectations() {{
+			oneOf(bdfReaderFactory).createReader(
+					with(any(ByteArrayInputStream.class)));
+			will(returnValue(bdfReader));
+			oneOf(bdfReader).readList();
+			will(returnValue(BdfList.of(new Bytes(commitment))));
+			oneOf(bdfReader).eof();
+			will(returnValue(true));
+		}});
+
+		Payload p = payloadParser.parse(new byte[] {PROTOCOL_VERSION});
+		assertArrayEquals(commitment, p.getCommitment());
+		assertTrue(p.getTransportDescriptors().isEmpty());
+	}
+}

bramble-java/src/test/java/org/briarproject/bramble/plugin/tor/BridgeTest.java

@@ -10,9 +10,13 @@ import org.briarproject.bramble.api.system.ResourceProvider;
 import org.briarproject.bramble.test.BrambleJavaIntegrationTestComponent;
 import org.briarproject.bramble.test.BrambleTestCase;
 import org.briarproject.bramble.test.DaggerBrambleJavaIntegrationTestComponent;
-import org.junit.AfterClass;
+import org.briarproject.bramble.util.OsUtils;
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
 
 import java.io.File;
 import java.util.List;
@@ -29,13 +33,20 @@ import static org.briarproject.bramble.test.TestUtils.deleteTestDirectory;
 import static org.briarproject.bramble.test.TestUtils.getTestDirectory;
 import static org.briarproject.bramble.test.TestUtils.isOptionalTestEnabled;
 import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 import static org.junit.Assume.assumeTrue;
 
+@RunWith(Parameterized.class)
 public class BridgeTest extends BrambleTestCase {
 
-	private final static long TIMEOUT = SECONDS.toMillis(23);
+	@Parameters
+	public static Iterable<String> data() {
+		BrambleJavaIntegrationTestComponent component =
+				DaggerBrambleJavaIntegrationTestComponent.builder().build();
+		return component.getCircumventionProvider().getBridges();
+	}
+
+	private final static long TIMEOUT = SECONDS.toMillis(30);
 
 	private final static Logger LOG =
 			Logger.getLogger(BridgeTest.class.getName());
@@ -53,17 +64,23 @@ public class BridgeTest extends BrambleTestCase {
 	@Inject
 	Clock clock;
 
-	private List<String> bridges;
-	private LinuxTorPluginFactory factory;
-	private final static File torDir = getTestDirectory();
+	private final File torDir = getTestDirectory();
+	private final String bridge;
 
-	private volatile String currentBridge = null;
+	private LinuxTorPluginFactory factory;
+
+	public BridgeTest(String bridge) {
+		this.bridge = bridge;
+	}
 
 	@Before
 	public void setUp() {
 		// Skip this test unless it's explicitly enabled in the environment
 		assumeTrue(isOptionalTestEnabled(BridgeTest.class));
 
+		// TODO: Remove this assumption when the plugin supports other platforms
+		assumeTrue(OsUtils.isLinux());
+
 		BrambleJavaIntegrationTestComponent component =
 				DaggerBrambleJavaIntegrationTestComponent.builder().build();
 		component.inject(this);
@@ -72,7 +89,6 @@ public class BridgeTest extends BrambleTestCase {
 		LocationUtils locationUtils = () -> "US";
 		SocketFactory torSocketFactory = SocketFactory.getDefault();
 
-		bridges = circumventionProvider.getBridges();
 		CircumventionProvider bridgeProvider = new CircumventionProvider() {
 			@Override
 			public boolean isTorProbablyBlocked(String countryCode) {
@@ -86,7 +102,7 @@ public class BridgeTest extends BrambleTestCase {
 
 			@Override
 			public List<String> getBridges() {
-				return singletonList(currentBridge);
+				return singletonList(bridge);
 			}
 		};
 		factory = new LinuxTorPluginFactory(ioExecutor, networkManager,
@@ -94,25 +110,18 @@ public class BridgeTest extends BrambleTestCase {
 				resourceProvider, bridgeProvider, clock, torDir);
 	}
 
-	@AfterClass
-	public static void tearDown() {
+	@After
+	public void tearDown() {
 		deleteTestDirectory(torDir);
 	}
 
 	@Test
 	public void testBridges() throws Exception {
-		assertTrue(bridges.size() > 0);
-
-		for (String bridge : bridges) testBridge(bridge);
-	}
-
-	private void testBridge(String bridge) throws Exception {
 		DuplexPlugin duplexPlugin =
 				factory.createPlugin(new TorPluginCallBack());
 		assertNotNull(duplexPlugin);
 		LinuxTorPlugin plugin = (LinuxTorPlugin) duplexPlugin;
 
-		currentBridge = bridge;
 		LOG.warning("Testing " + bridge);
 		try {
 			plugin.start();

bramble-java/src/test/java/org/briarproject/bramble/test/BrambleJavaIntegrationTestComponent.java

@@ -4,6 +4,7 @@ import org.briarproject.bramble.BrambleJavaModule;
 import org.briarproject.bramble.event.EventModule;
 import org.briarproject.bramble.plugin.PluginModule;
 import org.briarproject.bramble.plugin.tor.BridgeTest;
+import org.briarproject.bramble.plugin.tor.CircumventionProvider;
 import org.briarproject.bramble.system.SystemModule;
 
 import javax.inject.Singleton;
@@ -22,4 +23,5 @@ public interface BrambleJavaIntegrationTestComponent {
 
 	void inject(BridgeTest init);
 
+	CircumventionProvider getCircumventionProvider();
 }

briar-android/artwork/ic_link_down.svg

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   style="width:24px;height:24px"
+   viewBox="0 0 24 24"
+   version="1.1"
+   id="svg4"
+   sodipodi:docname="ic_link_down.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <metadata
+     id="metadata10">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs8" />
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1020"
+     id="namedview6"
+     showgrid="false"
+     inkscape:zoom="13.906433"
+     inkscape:cx="5.1490538"
+     inkscape:cy="22.945407"
+     inkscape:window-x="1440"
+     inkscape:window-y="24"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="svg4" />
+  <path
+     fill="#000000"
+     d="M16,6H13V7.9H16C18.26,7.9 20.1,9.73 20.1,12A4.1,4.1 0 0,1 16,16.1H13V18H16A6,6 0 0,0 22,12C22,8.68 19.31,6 16,6M3.9,12C3.9,9.73 5.74,7.9 8,7.9H11V6H8A6,6 0 0,0 2,12A6,6 0 0,0 8,18H11V16.1H8C5.74,16.1 3.9,14.26 3.9,12M8,13H16V11H8V13Z"
+     id="path2" />
+  <path
+     id="path884"
+     d="m 21.659779,17.473157 h -2.295918 v 3.061224 H 17.51182 l 3.000001,3 2.999999,-3 h -1.852041 z"
+     inkscape:connector-curvature="0"
+     style="fill:#000000;stroke-width:0.38265303" />
+</svg>

briar-android/artwork/ic_link_up.svg

@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   style="width:24px;height:24px"
+   viewBox="0 0 24 24"
+   version="1.1"
+   id="svg4"
+   sodipodi:docname="ic_link_up.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <metadata
+     id="metadata10">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs8" />
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1020"
+     id="namedview6"
+     showgrid="false"
+     inkscape:zoom="13.906433"
+     inkscape:cx="5.1490538"
+     inkscape:cy="22.945407"
+     inkscape:window-x="1440"
+     inkscape:window-y="24"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="svg4" />
+  <path
+     fill="#000000"
+     d="M16,6H13V7.9H16C18.26,7.9 20.1,9.73 20.1,12A4.1,4.1 0 0,1 16,16.1H13V18H16A6,6 0 0,0 22,12C22,8.68 19.31,6 16,6M3.9,12C3.9,9.73 5.74,7.9 8,7.9H11V6H8A6,6 0 0,0 2,12A6,6 0 0,0 8,18H11V16.1H8C5.74,16.1 3.9,14.26 3.9,12M8,13H16V11H8V13Z"
+     id="path2" />
+  <path
+     id="path884"
+     d="M 21.659779,23.534381 H 19.363861 V 20.473157 H 17.51182 l 3.000001,-3 2.999999,3 h -1.852041 z"
+     inkscape:connector-curvature="0"
+     style="fill:#000000;stroke-width:0.38265303" />
+</svg>

briar-android/build.gradle

@@ -2,6 +2,73 @@ apply plugin: 'com.android.application'
 apply plugin: 'witness'
 apply from: 'witness.gradle'
 
+// prototype
+repositories {
+	maven { url 'https://jitpack.io' }
+}
+
+dependencies {
+	implementation project(path: ':briar-core', configuration: 'default')
+	implementation project(path: ':bramble-core', configuration: 'default')
+	implementation project(':bramble-android')
+
+	def supportVersion = '28.0.0'
+	implementation "com.android.support:support-v4:$supportVersion"
+	implementation("com.android.support:appcompat-v7:$supportVersion") {
+		exclude module: 'support-v4'
+	}
+	implementation("com.android.support:preference-v14:$supportVersion") {
+		exclude module: 'support-v4'
+	}
+	implementation("com.android.support:design:$supportVersion") {
+		exclude module: 'support-v4'
+		exclude module: 'recyclerview-v7'
+	}
+	implementation "com.android.support:cardview-v7:$supportVersion"
+	implementation "com.android.support:support-annotations:$supportVersion"
+	implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+
+	implementation('ch.acra:acra:4.9.1') {
+		exclude module: 'support-v4'
+		exclude module: 'support-annotations'
+	}
+	implementation 'info.guardianproject.panic:panic:0.5'
+	implementation 'info.guardianproject.trustedintents:trustedintents:0.2'
+	implementation 'de.hdodenhof:circleimageview:2.2.0'
+	implementation 'com.google.zxing:core:3.3.0'
+	implementation 'uk.co.samuelwall:material-tap-target-prompt:2.8.0'
+	implementation 'com.vanniktech:emoji-google:0.5.1'
+
+	// prototype
+	implementation "com.github.kobakei:MaterialFabSpeedDial:1.2.0"
+
+	annotationProcessor 'com.google.dagger:dagger-compiler:2.0.2'
+
+	compileOnly 'javax.annotation:jsr250-api:1.0'
+
+	testImplementation project(path: ':bramble-api', configuration: 'testOutput')
+	testImplementation project(path: ':bramble-core', configuration: 'testOutput')
+	testImplementation 'org.robolectric:robolectric:3.8'
+	testImplementation 'org.robolectric:shadows-support-v4:3.3.2'
+	testImplementation 'org.mockito:mockito-core:2.13.0'
+	testImplementation 'junit:junit:4.12'
+	testImplementation "org.jmock:jmock:2.8.2"
+	testImplementation "org.jmock:jmock-junit4:2.8.2"
+	testImplementation "org.jmock:jmock-legacy:2.8.2"
+	testImplementation "org.hamcrest:hamcrest-library:1.3"
+	testImplementation "org.hamcrest:hamcrest-core:1.3"
+
+	def espressoVersion = '3.0.2'
+	androidTestImplementation "com.android.support.test.espresso:espresso-core:$espressoVersion"
+	androidTestImplementation "com.android.support.test.espresso:espresso-contrib:$espressoVersion"
+	androidTestImplementation "com.android.support.test.espresso:espresso-intents:$espressoVersion"
+	androidTestImplementation "tools.fastlane:screengrab:1.1.0"
+	androidTestImplementation "com.android.support.test.uiautomator:uiautomator-v18:2.1.3"
+	androidTestAnnotationProcessor "com.google.dagger:dagger-compiler:2.0.2"
+	androidTestCompileOnly 'javax.annotation:jsr250-api:1.0'
+	androidTestImplementation 'junit:junit:4.12'
+}
+
 def getStdout = { command, defaultValue ->
 	def stdout = new ByteArrayOutputStream()
 	try {
@@ -30,7 +97,7 @@ android {
 		def now = (long) (System.currentTimeMillis() / 1000)
 		buildConfigField "Long", "BuildTimestamp",
 				"${getStdout(['git', 'log', '-n', '1', '--format=%ct'], now)}000L"
-		testInstrumentationRunner 'org.briarproject.briar.android.BriarTestRunner'
+		testInstrumentationRunner 'org.briarproject.briar.android.test.BriarTestRunner'
 	}
 
 	buildTypes {
@@ -85,68 +152,6 @@ android {
 	}
 }
 
-dependencies {
-	implementation project(path: ':briar-core', configuration: 'default')
-	implementation project(path: ':bramble-core', configuration: 'default')
-	implementation project(':bramble-android')
-
-	def supportVersion = '27.1.1'
-	implementation "com.android.support:support-v4:$supportVersion"
-	implementation("com.android.support:appcompat-v7:$supportVersion") {
-		exclude module: 'support-v4'
-	}
-	implementation("com.android.support:preference-v14:$supportVersion") {
-		exclude module: 'support-v4'
-	}
-	implementation("com.android.support:design:$supportVersion") {
-		exclude module: 'support-v4'
-		exclude module: 'recyclerview-v7'
-	}
-	implementation "com.android.support:cardview-v7:$supportVersion"
-	implementation "com.android.support:support-annotations:$supportVersion"
-	implementation 'com.android.support.constraint:constraint-layout:1.1.0'
-
-	implementation('ch.acra:acra:4.9.1') {
-		exclude module: 'support-v4'
-		exclude module: 'support-annotations'
-	}
-	implementation 'info.guardianproject.panic:panic:0.5'
-	implementation 'info.guardianproject.trustedintents:trustedintents:0.2'
-	implementation 'de.hdodenhof:circleimageview:2.2.0'
-	implementation 'com.google.zxing:core:3.3.0'
-	implementation 'uk.co.samuelwall:material-tap-target-prompt:2.8.0'
-	implementation 'com.vanniktech:emoji-google:0.5.1'
-
-	annotationProcessor 'com.google.dagger:dagger-compiler:2.0.2'
-
-	compileOnly 'javax.annotation:jsr250-api:1.0'
-
-	testImplementation project(path: ':bramble-api', configuration: 'testOutput')
-	testImplementation project(path: ':bramble-core', configuration: 'testOutput')
-	testImplementation 'org.robolectric:robolectric:3.8'
-	testImplementation 'org.robolectric:shadows-support-v4:3.3.2'
-	testImplementation 'org.mockito:mockito-core:2.13.0'
-	testImplementation 'junit:junit:4.12'
-	testImplementation "org.jmock:jmock:2.8.2"
-	testImplementation "org.jmock:jmock-junit4:2.8.2"
-	testImplementation "org.jmock:jmock-legacy:2.8.2"
-	testImplementation "org.hamcrest:hamcrest-library:1.3"
-	testImplementation "org.hamcrest:hamcrest-core:1.3"
-
-	def espressoVersion = '3.0.2'
-	androidTestImplementation "com.android.support.test.espresso:espresso-core:$espressoVersion"
-	androidTestImplementation "com.android.support.test.espresso:espresso-contrib:$espressoVersion"
-	androidTestImplementation "com.android.support.test.espresso:espresso-intents:$espressoVersion"
-	androidTestAnnotationProcessor "com.google.dagger:dagger-compiler:2.0.2"
-	androidTestCompileOnly 'javax.annotation:jsr250-api:1.0'
-	androidTestImplementation 'junit:junit:4.12'
-
-	androidTestScreenshotImplementation project(path: ':bramble-api', configuration: 'testOutput')
-	androidTestScreenshotImplementation project(path: ':bramble-core', configuration: 'testOutput')
-	androidTestScreenshotImplementation "tools.fastlane:screengrab:1.2.0"
-	androidTestScreenshotImplementation "com.android.support.test.uiautomator:uiautomator-v18:2.1.3"
-}
-
 task verifyTranslations {
 	doLast {
 		def file = project.file("src/main/res/values/arrays.xml")
@@ -156,8 +161,9 @@ task verifyTranslations {
 		lc.children().each { value -> translations.add(value.text()) }
 
 		def folders = ["default", "en-US"]
+		def exceptions = ["values-night", "values-v21", "values-ldrtl"]
 		project.file("src/main/res").eachDir { dir ->
-			if (dir.name.startsWith("values-") && !dir.name.endsWith("night") && !dir.name.endsWith("v21")) {
+			if (dir.name.startsWith("values-") && !exceptions.contains(dir.name)) {
 				folders.add(dir.name.substring(7).replace("-r", "-"))
 			}
 		}

briar-android/fastlane/Screengrabfile

@@ -1,7 +1,9 @@
 app_package_name "org.briarproject.briar.android.screenshot.debug"
 locales ['en-US']
+use_tests_in_classes([
+    'org.briarproject.briar.android.login.SetupActivityScreenshotTest',
+    'org.briarproject.briar.android.settings.SettingsActivityScreenshotTest',
+])
 app_apk_path "build/outputs/apk/screenshot/debug/briar-android-screenshot-debug.apk"
 tests_apk_path "build/outputs/apk/androidTest/screenshot/debug/briar-android-screenshot-debug-androidTest.apk"
-test_instrumentation_runner "org.briarproject.briar.android.BriarTestRunner"
-reinstall_app = true
-exit_on_test_failure = true
+test_instrumentation_runner "org.briarproject.briar.android.test.BriarTestRunner"

briar-android/fastlane/demo-mode-activate.sh

@@ -4,8 +4,4 @@ adb shell am broadcast -a com.android.systemui.demo -e command enter
 adb shell am broadcast -a com.android.systemui.demo -e command notifications -e visible false
 adb shell am broadcast -a com.android.systemui.demo -e command battery -e level 100
 adb shell am broadcast -a com.android.systemui.demo -e command network -e wifi show
-adb shell am broadcast -a com.android.systemui.demo -e command clock -e hhmm 1337
-
-# workaround for Android Pie hidden API Espresso bug
-adb shell settings put global hidden_api_policy_pre_p_apps  1
-adb shell settings put global hidden_api_policy_p_apps 1
+adb shell am broadcast -a com.android.systemui.demo -e command clock -e hhmm 1337

briar-android/proguard-rules.txt

@@ -28,5 +28,3 @@
 
 # Emoji
 -keep class com.vanniktech.emoji.**
-
--keepclasseswithmembers public class android.support.v7.widget.RecyclerView { *; }

briar-android/proguard-test.txt

@@ -12,5 +12,4 @@
 -keep class junit.** { *; }
 -dontwarn junit.**
 
--dontwarn org.briarproject.briar.android.**
--dontwarn org.briarproject.bramble.**
+-dontwarn org.briarproject.briar.android.BriarTestComponentApplication

briar-android/src/androidTest/java/org/briarproject/briar/android/BriarTestComponentApplication.java

@@ -8,7 +8,7 @@ public class BriarTestComponentApplication extends BriarApplicationImpl {
 	@Override
 	protected AndroidComponent createApplicationComponent() {
 		AndroidComponent component = DaggerBriarUiTestComponent.builder()
-				.testAppModule(new TestAppModule(this)).build();
+				.appModule(new AppModule(this)).build();
 		// We need to load the eager singletons directly after making the
 		// dependency graphs
 		BrambleCoreModule.initEagerSingletons(component);

briar-android/src/androidTest/java/org/briarproject/briar/android/BriarUiTestComponent.java

@@ -4,7 +4,9 @@ import org.briarproject.bramble.BrambleAndroidModule;
 import org.briarproject.bramble.BrambleCoreModule;
 import org.briarproject.bramble.account.BriarAccountModule;
 import org.briarproject.briar.BriarCoreModule;
+import org.briarproject.briar.android.login.SetupActivityScreenshotTest;
 import org.briarproject.briar.android.navdrawer.NavDrawerActivityTest;
+import org.briarproject.briar.android.settings.SettingsActivityScreenshotTest;
 
 import javax.inject.Singleton;
 
@@ -20,6 +22,8 @@ import dagger.Component;
 })
 public interface BriarUiTestComponent extends AndroidComponent {
 
+	void inject(SetupActivityScreenshotTest test);
 	void inject(NavDrawerActivityTest test);
+	void inject(SettingsActivityScreenshotTest test);
 
 }

briar-android/src/androidTest/java/org/briarproject/briar/android/UiTest.java

@@ -1,82 +0,0 @@
-package org.briarproject.briar.android;
-
-import android.app.Activity;
-import android.content.Intent;
-import android.support.test.espresso.intent.rule.IntentsTestRule;
-
-import org.briarproject.bramble.api.account.AccountManager;
-import org.briarproject.bramble.api.lifecycle.LifecycleManager;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.briar.R;
-
-import javax.annotation.Nullable;
-import javax.inject.Inject;
-
-import static android.support.test.InstrumentationRegistry.getTargetContext;
-
-@SuppressWarnings("WeakerAccess")
-public abstract class UiTest {
-
-	protected final String USERNAME =
-			getTargetContext().getString(R.string.screenshot_alice);
-	protected static final String PASSWORD = "123456";
-
-	protected final BriarUiTestComponent alice;
-
-	@Inject
-	protected AccountManager accountManager;
-	@Inject
-	protected LifecycleManager lifecycleManager;
-
-	public UiTest() {
-		BriarTestComponentApplication app =
-				(BriarTestComponentApplication) getTargetContext()
-						.getApplicationContext();
-		alice = (BriarUiTestComponent) app.getApplicationComponent();
-		inject(alice);
-	}
-
-	protected abstract void inject(BriarUiTestComponent component);
-
-	@NotNullByDefault
-	protected class CleanAccountTestRule<A extends Activity>
-			extends IntentsTestRule<A> {
-
-		@Nullable
-		private final Runnable runnable;
-
-		public CleanAccountTestRule(Class<A> activityClass) {
-			super(activityClass);
-			this.runnable = null;
-		}
-
-		/**
-		 * Use this if you need to run code before launching the activity.
-		 * Note: You need to use {@link #launchActivity(Intent)} yourself
-		 * to start the activity.
-		 */
-		public CleanAccountTestRule(Class<A> activityClass, Runnable runnable) {
-			super(activityClass, false, false);
-			this.runnable = runnable;
-		}
-
-		@Override
-		protected void beforeActivityLaunched() {
-			super.beforeActivityLaunched();
-			accountManager.deleteAccount();
-			accountManager.createAccount(USERNAME, PASSWORD);
-			if (runnable != null) {
-				Intent serviceIntent =
-						new Intent(getTargetContext(), BriarService.class);
-				getTargetContext().startService(serviceIntent);
-				try {
-					lifecycleManager.waitForStartup();
-				} catch (InterruptedException e) {
-					throw new AssertionError(e);
-				}
-				runnable.run();
-			}
-		}
-	}
-
-}

briar-android/src/androidTest/java/org/briarproject/briar/android/login/SetupActivityScreenshotTest.java

@@ -0,0 +1,106 @@
+package org.briarproject.briar.android.login;
+
+import android.support.test.espresso.intent.rule.IntentsTestRule;
+import android.support.test.runner.AndroidJUnit4;
+import android.support.test.uiautomator.UiDevice;
+import android.support.test.uiautomator.UiObject;
+import android.support.test.uiautomator.UiSelector;
+
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.BriarUiTestComponent;
+import org.briarproject.briar.android.test.ScreenshotTest;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static android.support.test.InstrumentationRegistry.getInstrumentation;
+import static android.support.test.InstrumentationRegistry.getTargetContext;
+import static android.support.test.espresso.Espresso.onView;
+import static android.support.test.espresso.action.ViewActions.click;
+import static android.support.test.espresso.action.ViewActions.typeText;
+import static android.support.test.espresso.assertion.ViewAssertions.matches;
+import static android.support.test.espresso.intent.Intents.intended;
+import static android.support.test.espresso.intent.matcher.IntentMatchers.hasComponent;
+import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static android.support.test.espresso.matcher.ViewMatchers.isRoot;
+import static android.support.test.espresso.matcher.ViewMatchers.withId;
+import static android.support.test.espresso.matcher.ViewMatchers.withText;
+import static android.support.test.runner.lifecycle.Stage.PAUSED;
+import static junit.framework.Assert.assertTrue;
+import static org.briarproject.briar.android.test.ViewActions.waitForActivity;
+import static org.briarproject.briar.android.test.ViewActions.waitUntilMatches;
+import static org.briarproject.briar.android.util.UiUtils.needsDozeWhitelisting;
+
+
+@RunWith(AndroidJUnit4.class)
+public class SetupActivityScreenshotTest extends ScreenshotTest {
+
+	@Rule
+	public IntentsTestRule<SetupActivity> testRule =
+			new IntentsTestRule<SetupActivity>(SetupActivity.class) {
+				@Override
+				protected void beforeActivityLaunched() {
+					super.beforeActivityLaunched();
+					accountManager.deleteAccount();
+				}
+			};
+
+	@Override
+	protected void inject(BriarUiTestComponent component) {
+		component.inject(this);
+	}
+
+	@Test
+	public void createAccount() throws Exception {
+		// Enter username
+		onView(withText(R.string.setup_title))
+				.check(matches(isDisplayed()));
+		onView(withId(R.id.nickname_entry))
+				.check(matches(isDisplayed()))
+				.perform(typeText(USERNAME));
+		onView(withId(R.id.nickname_entry))
+				.perform(waitUntilMatches(withText(USERNAME)));
+
+		screenshot("manual_create_account");
+
+		onView(withId(R.id.next))
+				.check(matches(isDisplayed()))
+				.perform(click());
+
+		// Enter password
+		onView(withId(R.id.password_entry))
+				.check(matches(isDisplayed()))
+				.perform(typeText(PASSWORD));
+		onView(withId(R.id.password_confirm))
+				.check(matches(isDisplayed()))
+				.perform(typeText(PASSWORD));
+		onView(withId(R.id.next))
+				.check(matches(isDisplayed()))
+				.perform(click());
+
+		// White-list Doze if needed
+		if (needsDozeWhitelisting(getTargetContext())) {
+			onView(withText(R.string.setup_doze_button))
+					.check(matches(isDisplayed()))
+					.perform(click());
+			UiDevice device = UiDevice.getInstance(getInstrumentation());
+			UiObject allowButton = device.findObject(
+					new UiSelector().className("android.widget.Button")
+							.index(1));
+			allowButton.click();
+			onView(withId(R.id.next))
+					.check(matches(isDisplayed()))
+					.perform(click());
+		}
+
+		// wait for OpenDatabaseActivity to show up
+		onView(withId(R.id.progress))
+				.check(matches(isDisplayed()));
+		onView(isRoot())
+				.perform(waitForActivity(testRule.getActivity(), PAUSED));
+		intended(hasComponent(OpenDatabaseActivity.class.getName()));
+
+		assertTrue(accountManager.hasDatabaseKey());
+	}
+
+}

briar-android/src/androidTest/java/org/briarproject/briar/android/navdrawer/NavDrawerActivityTest.java

@@ -6,8 +6,8 @@ import android.view.Gravity;
 
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.BriarUiTestComponent;
-import org.briarproject.briar.android.UiTest;
 import org.briarproject.briar.android.settings.SettingsActivity;
+import org.briarproject.briar.android.test.ScreenshotTest;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -23,7 +23,7 @@ import static android.support.test.espresso.matcher.ViewMatchers.withId;
 import static android.support.test.espresso.matcher.ViewMatchers.withText;
 
 @RunWith(AndroidJUnit4.class)
-public class NavDrawerActivityTest extends UiTest {
+public class NavDrawerActivityTest extends ScreenshotTest {
 
 	@Rule
 	public CleanAccountTestRule<NavDrawerActivity> testRule =

briar-android/src/androidTest/java/org/briarproject/briar/android/settings/SettingsActivityScreenshotTest.java

@@ -2,15 +2,14 @@ package org.briarproject.briar.android.settings;
 
 import android.content.Intent;
 import android.support.test.espresso.contrib.DrawerActions;
-import android.support.test.rule.ActivityTestRule;
 import android.support.test.runner.AndroidJUnit4;
 import android.support.v7.widget.RecyclerView;
 import android.view.Gravity;
 
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.BriarUiTestComponent;
-import org.briarproject.briar.android.ScreenshotTest;
 import org.briarproject.briar.android.navdrawer.NavDrawerActivity;
+import org.briarproject.briar.android.test.ScreenshotTest;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -27,15 +26,15 @@ import static android.support.test.espresso.matcher.ViewMatchers.withChild;
 import static android.support.test.espresso.matcher.ViewMatchers.withClassName;
 import static android.support.test.espresso.matcher.ViewMatchers.withId;
 import static android.support.test.espresso.matcher.ViewMatchers.withText;
-import static org.briarproject.briar.android.ViewActions.waitUntilMatches;
+import static org.briarproject.briar.android.test.ViewActions.waitUntilMatches;
 import static org.hamcrest.CoreMatchers.is;
 
 @RunWith(AndroidJUnit4.class)
 public class SettingsActivityScreenshotTest extends ScreenshotTest {
 
 	@Rule
-	public ActivityTestRule<SettingsActivity> testRule =
-			new ActivityTestRule<>(SettingsActivity.class);
+	public CleanAccountTestRule<SettingsActivity> testRule =
+			new CleanAccountTestRule<>(SettingsActivity.class);
 
 	@Override
 	protected void inject(BriarUiTestComponent component) {
@@ -47,7 +46,7 @@ public class SettingsActivityScreenshotTest extends ScreenshotTest {
 		onView(withText(R.string.settings_button))
 				.check(matches(isDisplayed()));
 
-		screenshot("manual_dark_theme_settings", testRule.getActivity());
+		screenshot("manual_dark_theme_settings");
 
 		// switch to dark theme
 		onView(withText(R.string.pref_theme_title))
@@ -57,20 +56,10 @@ public class SettingsActivityScreenshotTest extends ScreenshotTest {
 				.check(matches(isDisplayed()))
 				.perform(click());
 
-		openNavDrawer();
+		// open nav drawer and remove expiry warning
+		openNavDrawer(true);
 
-		screenshot("manual_dark_theme_nav_drawer", testRule.getActivity());
-
-		// switch to back to light theme
-		onView(withText(R.string.settings_button))
-				.check(matches(isDisplayed()))
-				.perform(click());
-		onView(withText(R.string.pref_theme_title))
-				.check(matches(isDisplayed()))
-				.perform(click());
-		onView(withText(R.string.pref_theme_light))
-				.check(matches(isDisplayed()))
-				.perform(click());
+		screenshot("manual_dark_theme_nav_drawer");
 	}
 
 	@Test
@@ -94,11 +83,12 @@ public class SettingsActivityScreenshotTest extends ScreenshotTest {
 				.check(matches(isDisplayed()))
 				.check(matches(isEnabled()));
 
-		screenshot("manual_app_lock", testRule.getActivity());
+		screenshot("manual_app_lock");
 
-		openNavDrawer();
+		// no more expiry warning to remove, because sharedprefs cached?
+		openNavDrawer(false);
 
-		screenshot("manual_app_lock_nav_drawer", testRule.getActivity());
+		screenshot("manual_app_lock_nav_drawer");
 	}
 
 	@Test
@@ -114,15 +104,23 @@ public class SettingsActivityScreenshotTest extends ScreenshotTest {
 				.check(matches(isDisplayed()))
 				.perform(waitUntilMatches(isEnabled()));
 
-		screenshot("manual_tor_settings", testRule.getActivity());
+		screenshot("manual_tor_settings");
 	}
 
-	private void openNavDrawer() {
+	private void openNavDrawer(boolean expiry) {
 		// start main activity
 		Intent i =
 				new Intent(testRule.getActivity(), NavDrawerActivity.class);
 		testRule.getActivity().startActivity(i);
 
+		// close expiry warning
+		if (expiry) {
+			onView(withId(R.id.expiryWarningClose))
+					.check(matches(isDisplayed()));
+			onView(withId(R.id.expiryWarningClose))
+					.perform(click());
+		}
+
 		// open navigation drawer
 		onView(withId(R.id.drawer_layout))
 				.check(matches(isClosed(Gravity.START)))

briar-android/src/androidTest/java/org/briarproject/briar/android/test/BriarTestRunner.java

@@ -1,9 +1,11 @@
-package org.briarproject.briar.android;
+package org.briarproject.briar.android.test;
 
 import android.app.Application;
 import android.content.Context;
 import android.support.test.runner.AndroidJUnitRunner;
 
+import org.briarproject.briar.android.BriarTestComponentApplication;
+
 public class BriarTestRunner extends AndroidJUnitRunner {
 
 	@Override
@@ -11,8 +13,8 @@ public class BriarTestRunner extends AndroidJUnitRunner {
 			Context context)
 			throws InstantiationException, IllegalAccessException,
 			ClassNotFoundException {
-		return super.newApplication(cl,
-				BriarTestComponentApplication.class.getName(), context);
+		return super.newApplication(cl, BriarTestComponentApplication.class.getName(),
+				context);
 	}
 
 }

briar-android/src/androidTest/java/org/briarproject/briar/android/test/ScreenshotTest.java

@@ -0,0 +1,73 @@
+package org.briarproject.briar.android.test;
+
+import android.app.Activity;
+import android.support.test.espresso.intent.rule.IntentsTestRule;
+import android.util.Log;
+
+import org.briarproject.bramble.api.account.AccountManager;
+import org.briarproject.bramble.api.lifecycle.LifecycleManager;
+import org.briarproject.briar.android.BriarTestComponentApplication;
+import org.briarproject.briar.android.BriarUiTestComponent;
+import org.junit.ClassRule;
+
+import javax.inject.Inject;
+
+import tools.fastlane.screengrab.Screengrab;
+import tools.fastlane.screengrab.UiAutomatorScreenshotStrategy;
+import tools.fastlane.screengrab.locale.LocaleTestRule;
+
+import static android.support.test.InstrumentationRegistry.getTargetContext;
+import static tools.fastlane.screengrab.Screengrab.setDefaultScreenshotStrategy;
+
+public abstract class ScreenshotTest {
+
+	@ClassRule
+	public static final LocaleTestRule localeTestRule = new LocaleTestRule();
+
+	protected static final String USERNAME = "Alice";
+	protected static final String PASSWORD = "123456";
+
+	@Inject
+	protected AccountManager accountManager;
+	@Inject
+	protected LifecycleManager lifecycleManager;
+
+	public ScreenshotTest() {
+		super();
+		setDefaultScreenshotStrategy(new UiAutomatorScreenshotStrategy());
+		BriarTestComponentApplication app =
+				(BriarTestComponentApplication) getTargetContext()
+						.getApplicationContext();
+		inject((BriarUiTestComponent) app.getApplicationComponent());
+	}
+
+	protected abstract void inject(BriarUiTestComponent component);
+
+	protected void screenshot(String name) {
+		try {
+			Screengrab.screenshot(name);
+		} catch (RuntimeException e) {
+			if (!e.getMessage().equals("Unable to capture screenshot."))
+				throw e;
+			// The tests should still pass when run from AndroidStudio
+			// without manually granting permissions like fastlane does.
+			Log.w("Screengrab", "Permission to write screenshot is missing.");
+		}
+	}
+
+	protected class CleanAccountTestRule<A extends Activity>
+			extends IntentsTestRule<A> {
+
+		public CleanAccountTestRule(Class<A> activityClass) {
+			super(activityClass);
+		}
+
+		@Override
+		protected void beforeActivityLaunched() {
+			super.beforeActivityLaunched();
+			accountManager.deleteAccount();
+			accountManager.createAccount(USERNAME, PASSWORD);
+		}
+	}
+
+}

briar-android/src/androidTest/java/org/briarproject/briar/android/test/ViewActions.java

@@ -1,4 +1,4 @@
-package org.briarproject.briar.android;
+package org.briarproject.briar.android.test;
 
 import android.app.Activity;
 import android.support.test.espresso.PerformException;

briar-android/src/androidTestScreenshot/java/org/briarproject/briar/android/BriarUiTestComponent.java

@@ -1,29 +0,0 @@
-package org.briarproject.briar.android;
-
-import org.briarproject.bramble.BrambleAndroidModule;
-import org.briarproject.bramble.BrambleCoreModule;
-import org.briarproject.bramble.account.BriarAccountModule;
-import org.briarproject.briar.BriarCoreModule;
-import org.briarproject.briar.android.contact.ConversationActivityScreenshotTest;
-import org.briarproject.briar.android.settings.SettingsActivityScreenshotTest;
-
-import javax.inject.Singleton;
-
-import dagger.Component;
-
-@Singleton
-@Component(modules = {
-		TestAppModule.class,
-		BriarCoreModule.class,
-		BrambleAndroidModule.class,
-		BriarAccountModule.class,
-		BrambleCoreModule.class
-})
-public interface BriarUiTestComponent extends AndroidComponent, FakeDataTestComponent {
-
-	void inject(SetupDataTest test);
-
-	void inject(ConversationActivityScreenshotTest test);
-	void inject(SettingsActivityScreenshotTest test);
-
-}

briar-android/src/androidTestScreenshot/java/org/briarproject/briar/android/FakeDataTestComponent.java

@@ -1,95 +0,0 @@
-package org.briarproject.briar.android;
-
-import org.briarproject.bramble.api.contact.ContactManager;
-import org.briarproject.bramble.api.event.EventBus;
-import org.briarproject.bramble.api.identity.IdentityManager;
-import org.briarproject.bramble.api.lifecycle.LifecycleManager;
-import org.briarproject.bramble.api.sync.SyncSessionFactory;
-import org.briarproject.bramble.api.transport.KeyManager;
-import org.briarproject.bramble.api.transport.StreamReaderFactory;
-import org.briarproject.bramble.api.transport.StreamWriterFactory;
-import org.briarproject.bramble.client.ClientModule;
-import org.briarproject.bramble.contact.ContactModule;
-import org.briarproject.bramble.crypto.CryptoModule;
-import org.briarproject.bramble.data.DataModule;
-import org.briarproject.bramble.db.DatabaseModule;
-import org.briarproject.bramble.event.EventModule;
-import org.briarproject.bramble.identity.IdentityModule;
-import org.briarproject.bramble.lifecycle.LifecycleModule;
-import org.briarproject.bramble.record.RecordModule;
-import org.briarproject.bramble.sync.SyncModule;
-import org.briarproject.bramble.system.SystemModule;
-import org.briarproject.bramble.test.TestCryptoExecutorModule;
-import org.briarproject.bramble.test.TestDatabaseModule;
-import org.briarproject.bramble.test.TestSecureRandomModule;
-import org.briarproject.bramble.transport.TransportModule;
-import org.briarproject.bramble.versioning.VersioningModule;
-import org.briarproject.briar.api.messaging.MessagingManager;
-import org.briarproject.briar.api.messaging.PrivateMessageFactory;
-import org.briarproject.briar.client.BriarClientModule;
-import org.briarproject.briar.messaging.MessagingModule;
-
-import javax.inject.Singleton;
-
-import dagger.Component;
-
-@Singleton
-@Component(modules = {
-		TestCryptoExecutorModule.class,
-		TestDatabaseModule.class,
-		TestPluginConfigModule.class,
-		TestSecureRandomModule.class,
-		BriarClientModule.class,
-		ClientModule.class,
-		ContactModule.class,
-		CryptoModule.class,
-		DataModule.class,
-		DatabaseModule.class,
-		EventModule.class,
-		IdentityModule.class,
-		LifecycleModule.class,
-		MessagingModule.class,
-		RecordModule.class,
-		SyncModule.class,
-		SystemModule.class,
-		TransportModule.class,
-		VersioningModule.class
-})
-interface FakeDataTestComponent {
-
-	void inject(ContactModule.EagerSingletons init);
-
-	void inject(IdentityModule.EagerSingletons init);
-
-	void inject(LifecycleModule.EagerSingletons init);
-
-	void inject(MessagingModule.EagerSingletons init);
-
-	void inject(SyncModule.EagerSingletons init);
-
-	void inject(SystemModule.EagerSingletons init);
-
-	void inject(TransportModule.EagerSingletons init);
-
-	void inject(VersioningModule.EagerSingletons init);
-
-	LifecycleManager getLifecycleManager();
-
-	IdentityManager getIdentityManager();
-
-	ContactManager getContactManager();
-
-	MessagingManager getMessagingManager();
-
-	KeyManager getKeyManager();
-
-	PrivateMessageFactory getPrivateMessageFactory();
-
-	EventBus getEventBus();
-
-	StreamWriterFactory getStreamWriterFactory();
-
-	StreamReaderFactory getStreamReaderFactory();
-
-	SyncSessionFactory getSyncSessionFactory();
-}

briar-android/src/androidTestScreenshot/java/org/briarproject/briar/android/ScreenshotTest.java

@@ -1,45 +0,0 @@
-package org.briarproject.briar.android;
-
-import android.app.Activity;
-import android.util.Log;
-
-import org.briarproject.bramble.api.plugin.ConnectionRegistry;
-import org.briarproject.bramble.api.system.Clock;
-import org.briarproject.briar.api.test.TestDataCreator;
-import org.junit.ClassRule;
-
-import javax.inject.Inject;
-
-import tools.fastlane.screengrab.FalconScreenshotStrategy;
-import tools.fastlane.screengrab.Screengrab;
-import tools.fastlane.screengrab.locale.LocaleTestRule;
-
-public abstract class ScreenshotTest extends UiTest {
-
-	@ClassRule
-	public static final LocaleTestRule localeTestRule = new LocaleTestRule();
-
-	@Inject
-	protected TestDataCreator testDataCreator;
-	@Inject
-	protected ConnectionRegistry connectionRegistry;
-	@Inject
-	protected Clock clock;
-
-	protected void screenshot(String name, Activity activity) {
-		try {
-			Screengrab.screenshot(name, new FalconScreenshotStrategy(activity));
-		} catch (RuntimeException e) {
-			if (!e.getMessage().equals("Unable to capture screenshot."))
-				throw e;
-			// The tests should still pass when run from AndroidStudio
-			// without manually granting permissions like fastlane does.
-			Log.w("Screengrab", "Permission to write screenshot is missing.");
-		}
-	}
-
-	protected long getMinutesAgo(int minutes) {
-		return clock.currentTimeMillis() - minutes * 60 * 1000;
-	}
-
-}

briar-android/src/androidTestScreenshot/java/org/briarproject/briar/android/SetupDataTest.java

@@ -1,338 +0,0 @@
-package org.briarproject.briar.android;
-
-import android.support.test.espresso.intent.rule.IntentsTestRule;
-import android.support.test.runner.AndroidJUnit4;
-import android.support.test.uiautomator.UiDevice;
-import android.support.test.uiautomator.UiObject;
-import android.support.test.uiautomator.UiSelector;
-import android.util.Log;
-
-import org.briarproject.bramble.api.FormatException;
-import org.briarproject.bramble.api.contact.Contact;
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.crypto.SecretKey;
-import org.briarproject.bramble.api.db.DbException;
-import org.briarproject.bramble.api.identity.LocalAuthor;
-import org.briarproject.bramble.api.lifecycle.LifecycleManager;
-import org.briarproject.bramble.api.sync.GroupId;
-import org.briarproject.bramble.api.sync.SyncSession;
-import org.briarproject.bramble.api.sync.SyncSessionFactory;
-import org.briarproject.bramble.api.transport.KeyManager;
-import org.briarproject.bramble.api.transport.StreamContext;
-import org.briarproject.bramble.api.transport.StreamReaderFactory;
-import org.briarproject.bramble.api.transport.StreamWriter;
-import org.briarproject.bramble.api.transport.StreamWriterFactory;
-import org.briarproject.bramble.contact.ContactModule;
-import org.briarproject.bramble.identity.IdentityModule;
-import org.briarproject.bramble.lifecycle.LifecycleModule;
-import org.briarproject.bramble.sync.SyncModule;
-import org.briarproject.bramble.system.SystemModule;
-import org.briarproject.bramble.test.TestDatabaseModule;
-import org.briarproject.bramble.test.TestUtils;
-import org.briarproject.bramble.transport.TransportModule;
-import org.briarproject.bramble.versioning.VersioningModule;
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.login.OpenDatabaseActivity;
-import org.briarproject.briar.android.login.SetupActivity;
-import org.briarproject.briar.android.navdrawer.NavDrawerActivity;
-import org.briarproject.briar.api.messaging.MessagingManager;
-import org.briarproject.briar.api.messaging.PrivateMessage;
-import org.briarproject.briar.api.messaging.PrivateMessageFactory;
-import org.briarproject.briar.messaging.MessagingModule;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.InputStream;
-
-import static android.content.Context.MODE_PRIVATE;
-import static android.support.test.InstrumentationRegistry.getInstrumentation;
-import static android.support.test.InstrumentationRegistry.getTargetContext;
-import static android.support.test.espresso.Espresso.onView;
-import static android.support.test.espresso.action.ViewActions.click;
-import static android.support.test.espresso.action.ViewActions.typeText;
-import static android.support.test.espresso.assertion.ViewAssertions.matches;
-import static android.support.test.espresso.contrib.RecyclerViewActions.actionOnItemAtPosition;
-import static android.support.test.espresso.intent.Intents.intended;
-import static android.support.test.espresso.intent.matcher.IntentMatchers.hasComponent;
-import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
-import static android.support.test.espresso.matcher.ViewMatchers.isRoot;
-import static android.support.test.espresso.matcher.ViewMatchers.withId;
-import static android.support.test.espresso.matcher.ViewMatchers.withText;
-import static android.support.test.runner.lifecycle.Stage.PAUSED;
-import static org.briarproject.bramble.api.plugin.LanTcpConstants.ID;
-import static org.briarproject.bramble.api.transport.TransportConstants.TAG_LENGTH;
-import static org.briarproject.bramble.test.TestUtils.getSecretKey;
-import static org.briarproject.briar.android.TestPluginConfigModule.MAX_LATENCY;
-import static org.briarproject.briar.android.TestPluginConfigModule.TRANSPORT_ID;
-import static org.briarproject.briar.android.ViewActions.waitForActivity;
-import static org.briarproject.briar.android.ViewActions.waitUntilMatches;
-import static org.briarproject.briar.android.util.UiUtils.needsDozeWhitelisting;
-import static org.hamcrest.Matchers.allOf;
-import static org.hamcrest.Matchers.not;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
-
-@RunWith(AndroidJUnit4.class)
-public class SetupDataTest extends ScreenshotTest {
-
-	@Rule
-	public IntentsTestRule<SetupActivity> testRule =
-			new IntentsTestRule<SetupActivity>(SetupActivity.class) {
-				@Override
-				protected void beforeActivityLaunched() {
-					super.beforeActivityLaunched();
-					accountManager.deleteAccount();
-				}
-			};
-
-	private FakeDataTestComponent bob;
-	private final File testDir =
-			getTargetContext().getDir("test", MODE_PRIVATE);
-	private final File bobDir = new File(testDir, "bob");
-	private final SecretKey master = getSecretKey();
-
-	@Override
-	protected void inject(BriarUiTestComponent component) {
-		component.inject(this);
-	}
-
-	@Before
-	public void setUp() {
-		Log.e("TEST", testDir.getAbsolutePath());
-		Log.e("TEST", "exists: " + testDir.exists());
-		assertTrue(testDir.mkdirs());
-		bob = DaggerFakeDataTestComponent.builder()
-				.testDatabaseModule(new TestDatabaseModule(bobDir)).build();
-		injectEagerSingletons(bob);
-		Log.e("TEST", "built bob");
-	}
-
-	@After
-	public void tearDown() throws Exception {
-		// Stop the lifecycle manager
-		LifecycleManager lifecycleManager = bob.getLifecycleManager();
-		lifecycleManager.stopServices();
-		lifecycleManager.waitForShutdown();
-
-		TestUtils.deleteTestDirectory(testDir);
-	}
-
-	private static void injectEagerSingletons(FakeDataTestComponent component) {
-		component.inject(new ContactModule.EagerSingletons());
-		component.inject(new IdentityModule.EagerSingletons());
-		component.inject(new LifecycleModule.EagerSingletons());
-		component.inject(new MessagingModule.EagerSingletons());
-		component.inject(new SyncModule.EagerSingletons());
-		component.inject(new SystemModule.EagerSingletons());
-		component.inject(new TransportModule.EagerSingletons());
-		component.inject(new VersioningModule.EagerSingletons());
-	}
-
-	@Test
-	public void createAccount() throws Exception {
-		// Enter username
-		onView(withText(R.string.setup_title))
-				.check(matches(isDisplayed()));
-		onView(withId(R.id.nickname_entry))
-				.check(matches(isDisplayed()))
-				.perform(typeText(USERNAME));
-		onView(withId(R.id.nickname_entry))
-				.perform(waitUntilMatches(withText(USERNAME)));
-
-		screenshot("manual_create_account", testRule.getActivity());
-
-		onView(withId(R.id.next))
-				.check(matches(isDisplayed()))
-				.perform(click());
-
-		// Enter password
-		onView(withId(R.id.password_entry))
-				.check(matches(isDisplayed()))
-				.perform(typeText(PASSWORD));
-		onView(withId(R.id.password_confirm))
-				.check(matches(isDisplayed()))
-				.perform(typeText(PASSWORD));
-		onView(withId(R.id.next))
-				.check(matches(isDisplayed()))
-				.perform(click());
-
-		// White-list Doze if needed
-		if (needsDozeWhitelisting(getTargetContext())) {
-			onView(withText(R.string.setup_doze_button))
-					.check(matches(isDisplayed()))
-					.perform(click());
-			UiDevice device = UiDevice.getInstance(getInstrumentation());
-			UiObject allowButton = device.findObject(
-					new UiSelector().className("android.widget.Button")
-							.index(1));
-			allowButton.click();
-			onView(withId(R.id.next))
-					.check(matches(isDisplayed()))
-					.perform(click());
-		}
-
-		// wait for OpenDatabaseActivity to show up
-		onView(isRoot())
-				.perform(waitForActivity(testRule.getActivity(), PAUSED));
-		intended(hasComponent(OpenDatabaseActivity.class.getName()));
-
-		assertTrue(accountManager.hasDatabaseKey());
-
-		// WIP below
-
-		// wait for OpenDatabaseActivity to go away
-		onView(isRoot())
-				.perform(waitUntilMatches(
-						allOf(withId(R.id.progressBar), not(isDisplayed()))));
-		lifecycleManager.waitForStartup();
-		intended(hasComponent(NavDrawerActivity.class.getName()));
-
-		// close expiry warning
-		onView(withId(R.id.expiryWarningClose))
-				.check(matches(isDisplayed()));
-		onView(withId(R.id.expiryWarningClose))
-				.perform(click());
-
-		LocalAuthor aliceAuthor = alice.identityManager().getLocalAuthor();
-
-		LocalAuthor bobAuthor = bob.getIdentityManager().createLocalAuthor(
-				getTargetContext().getString(R.string.screenshot_bob));
-		bob.getIdentityManager().registerLocalAuthor(bobAuthor);
-		// Start the lifecycle manager
-		bob.getLifecycleManager().startServices(getSecretKey());
-		bob.getLifecycleManager().waitForStartup();
-		long timestamp = clock.currentTimeMillis();
-		// Bob adds Alice as a contact
-		ContactId aliceContactId = bob.getContactManager()
-				.addContact(aliceAuthor, bobAuthor.getId(), master,
-						timestamp, true, true, true);
-		// Alice adds Bob as a contact
-		ContactId bobContactId = alice.contactManager()
-				.addContact(bobAuthor, aliceAuthor.getId(), master,
-						timestamp, false, true, true);
-
-		// TODO figure out how many messages
-		read(alice, bobContactId, write(bob, aliceContactId));
-		read(bob, aliceContactId, write(alice, bobContactId));
-		read(alice, bobContactId, write(bob, aliceContactId));
-		read(bob, aliceContactId, write(alice, bobContactId));
-		read(alice, bobContactId, write(bob, aliceContactId));
-		read(bob, aliceContactId, write(alice, bobContactId));
-		read(alice, bobContactId, write(bob, aliceContactId));
-		read(bob, aliceContactId, write(alice, bobContactId));
-		read(alice, bobContactId, write(bob, aliceContactId));
-		read(bob, aliceContactId, write(alice, bobContactId));
-		read(alice, bobContactId, write(bob, aliceContactId));
-		read(bob, aliceContactId, write(alice, bobContactId));
-		read(alice, bobContactId, write(bob, aliceContactId));
-
-		sendMessage(bob, aliceContactId);
-		read(alice, bobContactId, write(bob, aliceContactId));
-
-		onView(isRoot())
-				.perform(waitUntilMatches(withText(bobAuthor.getName())));
-		onView(withId(R.id.recyclerView))
-				.perform(actionOnItemAtPosition(0, click()));
-		onView(isRoot())
-				.perform(waitUntilMatches(withText(R.string.screenshot_message_2)));
-
-		assertEquals(1,
-				alice.conversationManager().getGroupCount(bobContactId).getMsgCount());
-
-		Thread.sleep(5000);
-	}
-
-	private void sendMessage(FakeDataTestComponent device, ContactId contactId)
-			throws Exception {
-		// Send Bob a message
-		MessagingManager messagingManager = device.getMessagingManager();
-		GroupId groupId = messagingManager.getConversationId(contactId);
-		PrivateMessageFactory privateMessageFactory =
-				device.getPrivateMessageFactory();
-		PrivateMessage message = privateMessageFactory.createPrivateMessage(
-				groupId, getMinutesAgo(3),
-				getTargetContext().getString(R.string.screenshot_message_2));
-		messagingManager.addLocalMessage(message);
-	}
-
-	private void read(FakeDataTestComponent device,
-			ContactId contactId, byte[] stream) throws Exception {
-		// Read and recognise the tag
-		ByteArrayInputStream in = new ByteArrayInputStream(stream);
-		byte[] tag = new byte[TAG_LENGTH];
-		int read = in.read(tag);
-		assertEquals(tag.length, read);
-		KeyManager keyManager = device.getKeyManager();
-		StreamContext ctx = keyManager.getStreamContext(TRANSPORT_ID, tag);
-		assertNotNull(ctx);
-		// Create a stream reader
-		StreamReaderFactory streamReaderFactory =
-				device.getStreamReaderFactory();
-		InputStream streamReader = streamReaderFactory.createStreamReader(
-				in, ctx);
-		// Create an incoming sync session
-		SyncSessionFactory syncSessionFactory = device.getSyncSessionFactory();
-		SyncSession session = syncSessionFactory.createIncomingSession(
-				contactId, streamReader);
-		// Read whatever needs to be read
-		session.run();
-		streamReader.close();
-	}
-
-	private byte[] write(FakeDataTestComponent device,
-			ContactId contactId) throws Exception {
-		ByteArrayOutputStream out = new ByteArrayOutputStream();
-		// Get a stream context
-		KeyManager keyManager = device.getKeyManager();
-		StreamContext ctx = keyManager.getStreamContext(contactId,
-				TRANSPORT_ID);
-		assertNotNull(ctx);
-		// Create a stream writer
-		StreamWriterFactory streamWriterFactory =
-				device.getStreamWriterFactory();
-		StreamWriter streamWriter =
-				streamWriterFactory.createStreamWriter(out, ctx);
-		// Create an outgoing sync session
-		SyncSessionFactory syncSessionFactory = device.getSyncSessionFactory();
-		SyncSession session = syncSessionFactory.createSimplexOutgoingSession(
-				contactId, MAX_LATENCY, streamWriter);
-		// Write whatever needs to be written
-		session.run();
-		streamWriter.sendEndOfStream();
-		// Return the contents of the stream
-		return out.toByteArray();
-	}
-
-	@Deprecated
-	private void createTestDataExceptions()
-			throws DbException, FormatException {
-		String bobName =
-				getTargetContext().getString(R.string.screenshot_bob);
-		Contact bob = testDataCreator.addContact(bobName);
-
-		String bobHi = getTargetContext()
-				.getString(R.string.screenshot_message_1);
-		long bobTime = getMinutesAgo(2);
-		testDataCreator.addPrivateMessage(bob, bobHi, bobTime, true);
-
-		String aliceHi = getTargetContext()
-				.getString(R.string.screenshot_message_2);
-		long aliceTime = getMinutesAgo(1);
-		testDataCreator.addPrivateMessage(bob, aliceHi, aliceTime, false);
-
-		String bobHi2 = getTargetContext()
-				.getString(R.string.screenshot_message_3);
-		long bobTime2 = getMinutesAgo(0);
-		testDataCreator.addPrivateMessage(bob, bobHi2, bobTime2, true);
-
-		connectionRegistry.registerConnection(bob.getId(), ID, true);
-	}
-
-}

briar-android/src/androidTestScreenshot/java/org/briarproject/briar/android/TestAppModule.java

@@ -1,161 +0,0 @@
-package org.briarproject.briar.android;
-
-import android.app.Application;
-import android.content.SharedPreferences;
-import android.os.StrictMode;
-
-import com.vanniktech.emoji.RecentEmoji;
-
-import org.briarproject.bramble.api.crypto.CryptoComponent;
-import org.briarproject.bramble.api.crypto.PublicKey;
-import org.briarproject.bramble.api.db.DatabaseConfig;
-import org.briarproject.bramble.api.event.EventBus;
-import org.briarproject.bramble.api.lifecycle.LifecycleManager;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.reporting.DevConfig;
-import org.briarproject.bramble.util.AndroidUtils;
-import org.briarproject.bramble.util.StringUtils;
-import org.briarproject.briar.android.account.LockManagerImpl;
-import org.briarproject.briar.api.android.AndroidNotificationManager;
-import org.briarproject.briar.api.android.DozeWatchdog;
-import org.briarproject.briar.api.android.LockManager;
-import org.briarproject.briar.api.android.ScreenFilterMonitor;
-
-import java.io.File;
-import java.security.GeneralSecurityException;
-
-import javax.inject.Inject;
-import javax.inject.Singleton;
-
-import dagger.Module;
-import dagger.Provides;
-
-import static android.content.Context.MODE_PRIVATE;
-import static org.briarproject.bramble.api.reporting.ReportingConstants.DEV_ONION_ADDRESS;
-import static org.briarproject.bramble.api.reporting.ReportingConstants.DEV_PUBLIC_KEY_HEX;
-
-@Module(includes = TestPluginConfigModule.class)
-public class TestAppModule {
-
-	static class EagerSingletons {
-		@Inject
-		AndroidNotificationManager androidNotificationManager;
-		@Inject
-		NetworkUsageLogger networkUsageLogger;
-		@Inject
-		DozeWatchdog dozeWatchdog;
-		@Inject
-		RecentEmoji recentEmoji;
-	}
-
-	private final Application application;
-
-	public TestAppModule(Application application) {
-		this.application = application;
-	}
-
-	@Provides
-	@Singleton
-	Application providesApplication() {
-		return application;
-	}
-
-	@Provides
-	@Singleton
-	DatabaseConfig provideDatabaseConfig(Application app) {
-		//FIXME: StrictMode
-		StrictMode.ThreadPolicy tp = StrictMode.allowThreadDiskReads();
-		StrictMode.allowThreadDiskWrites();
-		File dbDir = app.getApplicationContext().getDir("db", MODE_PRIVATE);
-		File keyDir = app.getApplicationContext().getDir("key", MODE_PRIVATE);
-		StrictMode.setThreadPolicy(tp);
-		return new AndroidDatabaseConfig(dbDir, keyDir);
-	}
-
-	@Provides
-	@Singleton
-	DevConfig provideDevConfig(Application app, CryptoComponent crypto) {
-		@NotNullByDefault
-		DevConfig devConfig = new DevConfig() {
-
-			@Override
-			public PublicKey getDevPublicKey() {
-				try {
-					return crypto.getMessageKeyParser().parsePublicKey(
-							StringUtils.fromHexString(DEV_PUBLIC_KEY_HEX));
-				} catch (GeneralSecurityException e) {
-					throw new RuntimeException(e);
-				}
-			}
-
-			@Override
-			public String getDevOnionAddress() {
-				return DEV_ONION_ADDRESS;
-			}
-
-			@Override
-			public File getReportDir() {
-				return AndroidUtils.getReportDir(app.getApplicationContext());
-			}
-		};
-		return devConfig;
-	}
-
-	@Provides
-	SharedPreferences provideSharedPreferences(Application app) {
-		// FIXME unify this with getDefaultSharedPreferences()
-		return app.getSharedPreferences("db", MODE_PRIVATE);
-	}
-
-	@Provides
-	@Singleton
-	AndroidNotificationManager provideAndroidNotificationManager(
-			LifecycleManager lifecycleManager, EventBus eventBus,
-			AndroidNotificationManagerImpl notificationManager) {
-		lifecycleManager.registerService(notificationManager);
-		eventBus.addListener(notificationManager);
-		return notificationManager;
-	}
-
-	@Provides
-	@Singleton
-	ScreenFilterMonitor provideScreenFilterMonitor(
-			LifecycleManager lifecycleManager,
-			ScreenFilterMonitorImpl screenFilterMonitor) {
-		lifecycleManager.registerService(screenFilterMonitor);
-		return screenFilterMonitor;
-	}
-
-	@Provides
-	NetworkUsageLogger provideNetworkUsageLogger(
-			LifecycleManager lifecycleManager) {
-		NetworkUsageLogger networkUsageLogger = new NetworkUsageLogger();
-		lifecycleManager.registerService(networkUsageLogger);
-		return networkUsageLogger;
-	}
-
-	@Provides
-	@Singleton
-	DozeWatchdog provideDozeWatchdog(LifecycleManager lifecycleManager) {
-		DozeWatchdogImpl dozeWatchdog = new DozeWatchdogImpl(application);
-		lifecycleManager.registerService(dozeWatchdog);
-		return dozeWatchdog;
-	}
-
-	@Provides
-	@Singleton
-	LockManager provideLockManager(LifecycleManager lifecycleManager,
-			EventBus eventBus, LockManagerImpl lockManager) {
-		lifecycleManager.registerService(lockManager);
-		eventBus.addListener(lockManager);
-		return lockManager;
-	}
-
-	@Provides
-	@Singleton
-	RecentEmoji provideRecentEmoji(LifecycleManager lifecycleManager,
-			RecentEmojiImpl recentEmoji) {
-		lifecycleManager.registerClient(recentEmoji);
-		return recentEmoji;
-	}
-}

briar-android/src/androidTestScreenshot/java/org/briarproject/briar/android/TestPluginConfigModule.java

@@ -1,71 +0,0 @@
-package org.briarproject.briar.android;
-
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.plugin.PluginConfig;
-import org.briarproject.bramble.api.plugin.TransportId;
-import org.briarproject.bramble.api.plugin.duplex.DuplexPluginFactory;
-import org.briarproject.bramble.api.plugin.simplex.SimplexPlugin;
-import org.briarproject.bramble.api.plugin.simplex.SimplexPluginCallback;
-import org.briarproject.bramble.api.plugin.simplex.SimplexPluginFactory;
-
-import java.util.Collection;
-
-import javax.annotation.Nullable;
-
-import dagger.Module;
-import dagger.Provides;
-
-import static java.util.Collections.emptyList;
-import static java.util.Collections.singletonList;
-import static org.briarproject.bramble.test.TestUtils.getTransportId;
-
-@Module
-public class TestPluginConfigModule {
-
-	public static final TransportId TRANSPORT_ID = getTransportId();
-	public static final int MAX_LATENCY = 2 * 60 * 1000; // 2 minutes
-
-	@NotNullByDefault
-	private final SimplexPluginFactory simplex = new SimplexPluginFactory() {
-
-		@Override
-		public TransportId getId() {
-			return TRANSPORT_ID;
-		}
-
-		@Override
-		public int getMaxLatency() {
-			return MAX_LATENCY;
-		}
-
-		@Override
-		@Nullable
-		public SimplexPlugin createPlugin(SimplexPluginCallback callback) {
-			return null;
-		}
-	};
-
-	@Provides
-	PluginConfig providePluginConfig() {
-		@NotNullByDefault
-		PluginConfig pluginConfig = new PluginConfig() {
-
-			@Override
-			public Collection<DuplexPluginFactory> getDuplexFactories() {
-				return emptyList();
-			}
-
-			@Override
-			public Collection<SimplexPluginFactory> getSimplexFactories() {
-				return singletonList(simplex);
-			}
-
-			@Override
-			public boolean shouldPoll() {
-				return false;
-			}
-		};
-		return pluginConfig;
-	}
-
-}

briar-android/src/androidTestScreenshot/java/org/briarproject/briar/android/contact/ConversationActivityScreenshotTest.java

@@ -1,52 +0,0 @@
-package org.briarproject.briar.android.contact;
-
-import android.content.Context;
-import android.content.Intent;
-import android.support.test.rule.ActivityTestRule;
-import android.support.test.runner.AndroidJUnit4;
-
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.BriarUiTestComponent;
-import org.briarproject.briar.android.ScreenshotTest;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import static android.support.test.InstrumentationRegistry.getInstrumentation;
-import static android.support.test.espresso.Espresso.onView;
-import static android.support.test.espresso.matcher.ViewMatchers.isCompletelyDisplayed;
-import static android.support.test.espresso.matcher.ViewMatchers.withId;
-import static android.support.test.espresso.matcher.ViewMatchers.withText;
-import static org.briarproject.briar.android.ViewActions.waitUntilMatches;
-import static org.briarproject.briar.android.contact.ConversationActivity.CONTACT_ID;
-import static org.hamcrest.Matchers.allOf;
-
-@RunWith(AndroidJUnit4.class)
-public class ConversationActivityScreenshotTest extends ScreenshotTest {
-
-	@Rule
-	public ActivityTestRule<ConversationActivity> testRule =
-			new ActivityTestRule<>(ConversationActivity.class, false, false);
-
-	@Override
-	protected void inject(BriarUiTestComponent component) {
-		component.inject(this);
-	}
-
-	@Test
-	public void messaging() throws Exception {
-		Context targetContext = getInstrumentation().getTargetContext();
-		Intent intent = new Intent(targetContext, ConversationActivity.class);
-		intent.putExtra(CONTACT_ID, 1);
-		testRule.launchActivity(intent);
-
-		onView(withId(R.id.conversationView))
-				.perform(waitUntilMatches(allOf(
-						withText(R.string.screenshot_message_3),
-						isCompletelyDisplayed())
-				));
-
-		screenshot("manual_messaging", testRule.getActivity());
-	}
-
-}

briar-android/src/main/AndroidManifest.xml

@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest
 	package="org.briarproject.briar"
-	xmlns:android="http://schemas.android.com/apk/res/android">
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:tools="http://schemas.android.com/tools">
 
 	<uses-feature android:name="android.hardware.bluetooth" android:required="false"/>
 	<uses-feature android:name="android.hardware.camera" android:required="false"/>
@@ -13,9 +14,10 @@
 	<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
 	<uses-permission android:name="android.permission.CAMERA" />
 	<uses-permission android:name="android.permission.INTERNET" />
+	<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
+	<uses-permission android:name="android.permission.USE_FINGERPRINT"/>
 	<uses-permission android:name="android.permission.VIBRATE" />
 	<uses-permission android:name="android.permission.WAKE_LOCK" />
-	<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
 	<uses-permission-sdk-23 android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS"/>
 	<uses-permission-sdk-23 android:name="android.permission.USE_BIOMETRIC" />
 
@@ -25,7 +27,9 @@
 		android:icon="@mipmap/ic_launcher_round"
 		android:label="@string/app_name"
 		android:logo="@mipmap/ic_launcher_round"
-		android:theme="@style/BriarTheme">
+		android:supportsRtl="true"
+		android:theme="@style/BriarTheme"
+		tools:ignore="GoogleAppIndexingWarning">
 
 		<receiver
 			android:name="org.briarproject.briar.android.login.SignInReminderReceiver"
@@ -409,5 +413,34 @@
 			android:launchMode="singleTask"
 			android:theme="@style/BriarTheme.NoActionBar"/>
 
+		<!-- Prototype -->
+		<activity
+			android:name=".android.contact.ContactInviteOutputActivity"
+			android:theme="@style/BriarTheme"
+			android:label="@string/send_link_title"/>
+
+		<activity
+			android:name=".android.contact.ContactInviteInputActivity"
+			android:theme="@style/BriarTheme"
+			android:label="@string/open_link_title"
+			android:windowSoftInputMode="stateHidden|adjustResize">
+			<intent-filter>
+				<action android:name="android.intent.action.VIEW" />
+				<category android:name="android.intent.category.DEFAULT" />
+				<category android:name="android.intent.category.BROWSABLE" />
+				<data android:scheme="briar"/>
+			</intent-filter>
+			<intent-filter>
+				<action android:name="android.intent.action.SEND"/>
+				<category android:name="android.intent.category.DEFAULT"/>
+				<data android:mimeType="text/plain"/>
+			</intent-filter>
+		</activity>
+
+		<activity
+			android:name=".android.contact.PendingRequestsActivity"
+			android:label="@string/pending_contact_requests"
+			android:theme="@style/BriarTheme"/>
+
 	</application>
 </manifest>

briar-android/src/main/java/org/briarproject/briar/android/AndroidNotificationManagerImpl.java

@@ -41,13 +41,9 @@ import org.briarproject.briar.android.util.BriarNotificationBuilder;
 import org.briarproject.briar.api.android.AndroidNotificationManager;
 import org.briarproject.briar.api.blog.event.BlogPostAddedEvent;
 import org.briarproject.briar.api.forum.event.ForumPostReceivedEvent;
-import org.briarproject.briar.api.introduction.event.IntroductionRequestReceivedEvent;
-import org.briarproject.briar.api.introduction.event.IntroductionResponseReceivedEvent;
 import org.briarproject.briar.api.introduction.event.IntroductionSucceededEvent;
 import org.briarproject.briar.api.messaging.event.PrivateMessageReceivedEvent;
 import org.briarproject.briar.api.privategroup.event.GroupMessageAddedEvent;
-import org.briarproject.briar.api.sharing.event.InvitationRequestReceivedEvent;
-import org.briarproject.briar.api.sharing.event.InvitationResponseReceivedEvent;
 
 import java.util.Set;
 import java.util.concurrent.Callable;
@@ -235,19 +231,6 @@ class AndroidNotificationManagerImpl implements AndroidNotificationManager,
 		} else if (e instanceof BlogPostAddedEvent) {
 			BlogPostAddedEvent b = (BlogPostAddedEvent) e;
 			showBlogPostNotification(b.getGroupId());
-		} else if (e instanceof IntroductionRequestReceivedEvent) {
-			ContactId c = ((IntroductionRequestReceivedEvent) e).getContactId();
-			showContactNotification(c);
-		} else if (e instanceof IntroductionResponseReceivedEvent) {
-			ContactId c =
-					((IntroductionResponseReceivedEvent) e).getContactId();
-			showContactNotification(c);
-		} else if (e instanceof InvitationRequestReceivedEvent) {
-			ContactId c = ((InvitationRequestReceivedEvent) e).getContactId();
-			showContactNotification(c);
-		} else if (e instanceof InvitationResponseReceivedEvent) {
-			ContactId c = ((InvitationResponseReceivedEvent) e).getContactId();
-			showContactNotification(c);
 		} else if (e instanceof IntroductionSucceededEvent) {
 			showIntroductionNotification();
 		}
@@ -327,9 +310,7 @@ class AndroidNotificationManagerImpl implements AndroidNotificationManager,
 					R.plurals.private_message_notification_text, contactTotal,
 					contactTotal));
 			b.setNumber(contactTotal);
-			boolean showOnLockScreen =
-					settings.getBoolean(PREF_NOTIFY_LOCK_SCREEN, false);
-			b.setLockscreenVisibility(CATEGORY_MESSAGE, showOnLockScreen);
+			b.setNotificationCategory(CATEGORY_MESSAGE);
 			if (mayAlertAgain) setAlertProperties(b);
 			setDeleteIntent(b, CONTACT_URI);
 			Set<ContactId> contacts = contactCounts.keySet();
@@ -431,9 +412,7 @@ class AndroidNotificationManagerImpl implements AndroidNotificationManager,
 					R.plurals.group_message_notification_text, groupTotal,
 					groupTotal));
 			b.setNumber(groupTotal);
-			boolean showOnLockScreen =
-					settings.getBoolean(PREF_NOTIFY_LOCK_SCREEN, false);
-			b.setLockscreenVisibility(CATEGORY_SOCIAL, showOnLockScreen);
+			b.setNotificationCategory(CATEGORY_SOCIAL);
 			if (mayAlertAgain) setAlertProperties(b);
 			setDeleteIntent(b, GROUP_URI);
 			Set<GroupId> groups = groupCounts.keySet();
@@ -504,9 +483,7 @@ class AndroidNotificationManagerImpl implements AndroidNotificationManager,
 					R.plurals.forum_post_notification_text, forumTotal,
 					forumTotal));
 			b.setNumber(forumTotal);
-			boolean showOnLockScreen =
-					settings.getBoolean(PREF_NOTIFY_LOCK_SCREEN, false);
-			b.setLockscreenVisibility(CATEGORY_SOCIAL, showOnLockScreen);
+			b.setNotificationCategory(CATEGORY_SOCIAL);
 			if (mayAlertAgain) setAlertProperties(b);
 			setDeleteIntent(b, FORUM_URI);
 			Set<GroupId> forums = forumCounts.keySet();
@@ -575,9 +552,7 @@ class AndroidNotificationManagerImpl implements AndroidNotificationManager,
 					R.plurals.blog_post_notification_text, blogTotal,
 					blogTotal));
 			b.setNumber(blogTotal);
-			boolean showOnLockScreen =
-					settings.getBoolean(PREF_NOTIFY_LOCK_SCREEN, false);
-			b.setLockscreenVisibility(CATEGORY_SOCIAL, showOnLockScreen);
+			b.setNotificationCategory(CATEGORY_SOCIAL);
 			if (mayAlertAgain) setAlertProperties(b);
 			setDeleteIntent(b, BLOG_URI);
 			// Touching the notification shows the combined blog feed
@@ -618,9 +593,7 @@ class AndroidNotificationManagerImpl implements AndroidNotificationManager,
 		b.setContentText(appContext.getResources().getQuantityString(
 				R.plurals.introduction_notification_text, introductionTotal,
 				introductionTotal));
-		boolean showOnLockScreen =
-				settings.getBoolean(PREF_NOTIFY_LOCK_SCREEN, false);
-		b.setLockscreenVisibility(CATEGORY_MESSAGE, showOnLockScreen);
+		b.setNotificationCategory(CATEGORY_MESSAGE);
 		setAlertProperties(b);
 		setDeleteIntent(b, INTRODUCTION_URI);
 		// Touching the notification shows the contact list

briar-android/src/main/java/org/briarproject/briar/android/AppModule.java

@@ -1,6 +1,7 @@
 package org.briarproject.briar.android;
 
 import android.app.Application;
+import android.content.Context;
 import android.content.SharedPreferences;
 import android.os.StrictMode;
 
@@ -10,9 +11,24 @@ import org.briarproject.bramble.api.crypto.CryptoComponent;
 import org.briarproject.bramble.api.crypto.PublicKey;
 import org.briarproject.bramble.api.db.DatabaseConfig;
 import org.briarproject.bramble.api.event.EventBus;
+import org.briarproject.bramble.api.lifecycle.IoExecutor;
 import org.briarproject.bramble.api.lifecycle.LifecycleManager;
+import org.briarproject.bramble.api.network.NetworkManager;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+import org.briarproject.bramble.api.plugin.BackoffFactory;
+import org.briarproject.bramble.api.plugin.PluginConfig;
+import org.briarproject.bramble.api.plugin.duplex.DuplexPluginFactory;
+import org.briarproject.bramble.api.plugin.simplex.SimplexPluginFactory;
 import org.briarproject.bramble.api.reporting.DevConfig;
+import org.briarproject.bramble.api.system.AndroidExecutor;
+import org.briarproject.bramble.api.system.Clock;
+import org.briarproject.bramble.api.system.LocationUtils;
+import org.briarproject.bramble.api.system.ResourceProvider;
+import org.briarproject.bramble.api.system.Scheduler;
+import org.briarproject.bramble.plugin.bluetooth.AndroidBluetoothPluginFactory;
+import org.briarproject.bramble.plugin.tcp.AndroidLanTcpPluginFactory;
+import org.briarproject.bramble.plugin.tor.AndroidTorPluginFactory;
+import org.briarproject.bramble.plugin.tor.CircumventionProvider;
 import org.briarproject.bramble.util.AndroidUtils;
 import org.briarproject.bramble.util.StringUtils;
 import org.briarproject.briar.android.account.LockManagerImpl;
@@ -23,18 +39,25 @@ import org.briarproject.briar.api.android.ScreenFilterMonitor;
 
 import java.io.File;
 import java.security.GeneralSecurityException;
+import java.security.SecureRandom;
+import java.util.Collection;
+import java.util.concurrent.Executor;
+import java.util.concurrent.ScheduledExecutorService;
 
 import javax.inject.Inject;
 import javax.inject.Singleton;
+import javax.net.SocketFactory;
 
 import dagger.Module;
 import dagger.Provides;
 
 import static android.content.Context.MODE_PRIVATE;
+import static java.util.Arrays.asList;
+import static java.util.Collections.emptyList;
 import static org.briarproject.bramble.api.reporting.ReportingConstants.DEV_ONION_ADDRESS;
 import static org.briarproject.bramble.api.reporting.ReportingConstants.DEV_PUBLIC_KEY_HEX;
 
-@Module(includes = PluginConfigModule.class)
+@Module
 public class AppModule {
 
 	static class EagerSingletons {
@@ -72,6 +95,47 @@ public class AppModule {
 		return new AndroidDatabaseConfig(dbDir, keyDir);
 	}
 
+	@Provides
+	PluginConfig providePluginConfig(@IoExecutor Executor ioExecutor,
+			@Scheduler ScheduledExecutorService scheduler,
+			AndroidExecutor androidExecutor, SecureRandom random,
+			SocketFactory torSocketFactory, BackoffFactory backoffFactory,
+			Application app, NetworkManager networkManager,
+			LocationUtils locationUtils, EventBus eventBus,
+			ResourceProvider resourceProvider,
+			CircumventionProvider circumventionProvider, Clock clock) {
+		Context appContext = app.getApplicationContext();
+		DuplexPluginFactory bluetooth =
+				new AndroidBluetoothPluginFactory(ioExecutor, androidExecutor,
+						appContext, random, eventBus, backoffFactory);
+		DuplexPluginFactory tor = new AndroidTorPluginFactory(ioExecutor,
+				scheduler, appContext, networkManager, locationUtils, eventBus,
+				torSocketFactory, backoffFactory, resourceProvider,
+				circumventionProvider, clock);
+		DuplexPluginFactory lan = new AndroidLanTcpPluginFactory(ioExecutor,
+				eventBus, backoffFactory, appContext);
+		Collection<DuplexPluginFactory> duplex = asList(bluetooth, tor, lan);
+		@NotNullByDefault
+		PluginConfig pluginConfig = new PluginConfig() {
+
+			@Override
+			public Collection<DuplexPluginFactory> getDuplexFactories() {
+				return duplex;
+			}
+
+			@Override
+			public Collection<SimplexPluginFactory> getSimplexFactories() {
+				return emptyList();
+			}
+
+			@Override
+			public boolean shouldPoll() {
+				return true;
+			}
+		};
+		return pluginConfig;
+	}
+
 	@Provides
 	@Singleton
 	DevConfig provideDevConfig(Application app, CryptoComponent crypto) {

briar-android/src/main/java/org/briarproject/briar/android/PluginConfigModule.java

@@ -1,81 +0,0 @@
-package org.briarproject.briar.android;
-
-import android.app.Application;
-import android.content.Context;
-
-import org.briarproject.bramble.api.event.EventBus;
-import org.briarproject.bramble.api.lifecycle.IoExecutor;
-import org.briarproject.bramble.api.network.NetworkManager;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.plugin.BackoffFactory;
-import org.briarproject.bramble.api.plugin.PluginConfig;
-import org.briarproject.bramble.api.plugin.duplex.DuplexPluginFactory;
-import org.briarproject.bramble.api.plugin.simplex.SimplexPluginFactory;
-import org.briarproject.bramble.api.system.AndroidExecutor;
-import org.briarproject.bramble.api.system.Clock;
-import org.briarproject.bramble.api.system.LocationUtils;
-import org.briarproject.bramble.api.system.ResourceProvider;
-import org.briarproject.bramble.api.system.Scheduler;
-import org.briarproject.bramble.plugin.bluetooth.AndroidBluetoothPluginFactory;
-import org.briarproject.bramble.plugin.tcp.AndroidLanTcpPluginFactory;
-import org.briarproject.bramble.plugin.tor.AndroidTorPluginFactory;
-import org.briarproject.bramble.plugin.tor.CircumventionProvider;
-
-import java.security.SecureRandom;
-import java.util.Collection;
-import java.util.concurrent.Executor;
-import java.util.concurrent.ScheduledExecutorService;
-
-import javax.net.SocketFactory;
-
-import dagger.Module;
-import dagger.Provides;
-
-import static java.util.Arrays.asList;
-import static java.util.Collections.emptyList;
-
-@Module
-public class PluginConfigModule {
-
-	@Provides
-	PluginConfig providePluginConfig(@IoExecutor Executor ioExecutor,
-			@Scheduler ScheduledExecutorService scheduler,
-			AndroidExecutor androidExecutor, SecureRandom random,
-			SocketFactory torSocketFactory, BackoffFactory backoffFactory,
-			Application app, NetworkManager networkManager,
-			LocationUtils locationUtils, EventBus eventBus,
-			ResourceProvider resourceProvider,
-			CircumventionProvider circumventionProvider, Clock clock) {
-		Context appContext = app.getApplicationContext();
-		DuplexPluginFactory bluetooth =
-				new AndroidBluetoothPluginFactory(ioExecutor, androidExecutor,
-						appContext, random, eventBus, backoffFactory);
-		DuplexPluginFactory tor = new AndroidTorPluginFactory(ioExecutor,
-				scheduler, appContext, networkManager, locationUtils, eventBus,
-				torSocketFactory, backoffFactory, resourceProvider,
-				circumventionProvider, clock);
-		DuplexPluginFactory lan = new AndroidLanTcpPluginFactory(ioExecutor,
-				eventBus, backoffFactory, appContext);
-		Collection<DuplexPluginFactory> duplex = asList(bluetooth, tor, lan);
-		@NotNullByDefault
-		PluginConfig pluginConfig = new PluginConfig() {
-
-			@Override
-			public Collection<DuplexPluginFactory> getDuplexFactories() {
-				return duplex;
-			}
-
-			@Override
-			public Collection<SimplexPluginFactory> getSimplexFactories() {
-				return emptyList();
-			}
-
-			@Override
-			public boolean shouldPoll() {
-				return true;
-			}
-		};
-		return pluginConfig;
-	}
-
-}

briar-android/src/main/java/org/briarproject/briar/android/account/LockManagerImpl.java

@@ -101,6 +101,8 @@ public class LockManagerImpl implements LockManager, Service, EventListener {
 
 	@Override
 	public void stopService() {
+		timeoutMinutes = timeoutNever;
+		if (alarmSet) alarmManager.cancel(lockIntent);
 	}
 
 	@UiThread

briar-android/src/main/java/org/briarproject/briar/android/activity/ActivityComponent.java

@@ -15,9 +15,17 @@ import org.briarproject.briar.android.blog.ReblogFragment;
 import org.briarproject.briar.android.blog.RssFeedImportActivity;
 import org.briarproject.briar.android.blog.RssFeedManageActivity;
 import org.briarproject.briar.android.blog.WriteBlogPostActivity;
+import org.briarproject.briar.android.contact.ContactAliasInputFragment;
+import org.briarproject.briar.android.contact.ContactInviteInputActivity;
+import org.briarproject.briar.android.contact.ContactInviteOutputActivity;
+import org.briarproject.briar.android.contact.ContactLinkInputFragment;
+import org.briarproject.briar.android.contact.ContactLinkOutputFragment;
 import org.briarproject.briar.android.contact.ContactListFragment;
 import org.briarproject.briar.android.contact.ContactModule;
+import org.briarproject.briar.android.contact.ContactQrCodeInputFragment;
+import org.briarproject.briar.android.contact.ContactQrCodeOutputFragment;
 import org.briarproject.briar.android.contact.ConversationActivity;
+import org.briarproject.briar.android.contact.PendingRequestsActivity;
 import org.briarproject.briar.android.forum.CreateForumActivity;
 import org.briarproject.briar.android.forum.ForumActivity;
 import org.briarproject.briar.android.forum.ForumListFragment;
@@ -167,6 +175,15 @@ public interface ActivityComponent {
 
 	void inject(UnlockActivity activity);
 
+	void inject(ContactInviteOutputActivity activity);
+	void inject(ContactInviteInputActivity activity);
+	void inject(PendingRequestsActivity activity);
+	void inject(ContactLinkOutputFragment activity);
+	void inject(ContactQrCodeOutputFragment activity);
+	void inject(ContactLinkInputFragment activity);
+	void inject(ContactQrCodeInputFragment activity);
+	void inject(ContactAliasInputFragment activity);
+
 	// Fragments
 	void inject(AuthorNameFragment fragment);
 

briar-android/src/main/java/org/briarproject/briar/android/blog/BlogControllerImpl.java

@@ -21,11 +21,11 @@ import org.briarproject.briar.android.controller.ActivityLifecycleController;
 import org.briarproject.briar.android.controller.handler.ResultExceptionHandler;
 import org.briarproject.briar.api.android.AndroidNotificationManager;
 import org.briarproject.briar.api.blog.Blog;
+import org.briarproject.briar.api.blog.BlogInvitationResponse;
 import org.briarproject.briar.api.blog.BlogManager;
 import org.briarproject.briar.api.blog.BlogSharingManager;
 import org.briarproject.briar.api.blog.event.BlogInvitationResponseReceivedEvent;
 import org.briarproject.briar.api.blog.event.BlogPostAddedEvent;
-import org.briarproject.briar.api.sharing.InvitationResponse;
 import org.briarproject.briar.api.sharing.event.ContactLeftShareableEvent;
 
 import java.util.ArrayList;
@@ -107,7 +107,7 @@ class BlogControllerImpl extends BaseControllerImpl
 		} else if (e instanceof BlogInvitationResponseReceivedEvent) {
 			BlogInvitationResponseReceivedEvent b =
 					(BlogInvitationResponseReceivedEvent) e;
-			InvitationResponse r = b.getResponse();
+			BlogInvitationResponse r = b.getMessageHeader();
 			if (r.getShareableId().equals(groupId) && r.wasAccepted()) {
 				LOG.info("Blog invitation accepted");
 				onBlogInvitationAccepted(b.getContactId());

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactAliasInputFragment.java

@@ -0,0 +1,116 @@
+package org.briarproject.briar.android.contact;
+
+import android.content.Intent;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.support.v4.graphics.drawable.DrawableCompat;
+import android.support.v7.app.AlertDialog;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.EditText;
+
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.fragment.BaseFragment;
+import org.briarproject.briar.android.navdrawer.NavDrawerActivity;
+
+import javax.annotation.Nullable;
+
+import static android.content.Intent.FLAG_ACTIVITY_CLEAR_TOP;
+import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK;
+import static android.os.Build.VERSION.SDK_INT;
+import static org.briarproject.briar.android.util.UiUtils.resolveColorAttribute;
+
+@NotNullByDefault
+public class ContactAliasInputFragment extends BaseFragment
+		implements TextWatcher {
+
+	private EditText contactNameInput;
+	private Button addButton;
+
+	@Nullable
+	@Override
+	public View onCreateView(LayoutInflater inflater,
+			@Nullable ViewGroup container,
+			@Nullable Bundle savedInstanceState) {
+
+		getActivity().setTitle("Enter Contact Name");
+
+		View v = inflater.inflate(R.layout.fragment_contact_alias_input,
+				container, false);
+
+		contactNameInput = v.findViewById(R.id.contactNameInput);
+		contactNameInput.addTextChangedListener(this);
+
+		addButton = v.findViewById(R.id.addButton);
+		addButton.setOnClickListener(view -> onAddButtonClicked());
+
+		return v;
+	}
+
+	public static final String TAG = ContactAliasInputFragment.class.getName();
+
+	@Override
+	public String getUniqueTag() {
+		return TAG;
+	}
+
+	@Override
+	public void injectFragment(ActivityComponent component) {
+		component.inject(this);
+	}
+
+	@Override
+	public void beforeTextChanged(CharSequence s, int start, int count,
+			int after) {
+	}
+
+	@Override
+	public void onTextChanged(CharSequence s, int start, int before,
+			int count) {
+		updateAddButtonState();
+	}
+
+	@Override
+	public void afterTextChanged(Editable s) {
+	}
+
+	private boolean isBriarLink(CharSequence s) {
+		return getActivity() != null &&
+				((ContactInviteInputActivity) getActivity()).isBriarLink(s);
+	}
+
+	private void updateAddButtonState() {
+		addButton.setEnabled(contactNameInput.getText().length() > 0);
+	}
+
+	private void onAddButtonClicked() {
+		if (getActivity() == null || getContext() == null) return;;
+
+		((ContactInviteInputActivity) getActivity())
+				.addFakeRequest(contactNameInput.getText().toString());
+
+		AlertDialog.Builder builder = new AlertDialog.Builder(getContext(), R.style.BriarDialogTheme_Neutral);
+		builder.setTitle("Contact requested");
+		builder.setMessage(getString(R.string.add_contact_link_question));
+		builder.setPositiveButton(R.string.yes, (dialog, which) -> {
+			Intent intent = new Intent(getContext(), NavDrawerActivity.class);
+			intent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TOP);
+			startActivity(intent);
+			finish();
+		});
+		builder.setNegativeButton(R.string.no, (dialog, which) -> {
+			startActivity(
+					new Intent(getContext(), ContactInviteOutputActivity.class));
+			finish();
+		});
+		builder.show();
+	}
+
+
+}

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactInviteInputActivity.java

@@ -0,0 +1,158 @@
+package org.briarproject.briar.android.contact;
+
+import android.app.AlarmManager;
+import android.app.PendingIntent;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v7.app.ActionBar;
+import android.util.Log;
+import android.view.MenuItem;
+
+import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.bramble.api.lifecycle.LifecycleManager;
+import org.briarproject.bramble.api.system.Clock;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.activity.BriarActivity;
+import org.briarproject.briar.android.fragment.BaseFragment.BaseFragmentListener;
+import org.briarproject.briar.api.messaging.MessagingManager;
+
+import java.util.Random;
+
+import javax.annotation.Nullable;
+import javax.inject.Inject;
+
+import static android.app.AlarmManager.ELAPSED_REALTIME;
+import static android.content.Intent.ACTION_SEND;
+import static android.content.Intent.ACTION_VIEW;
+import static android.content.Intent.EXTRA_TEXT;
+import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK;
+import static android.os.SystemClock.elapsedRealtime;
+import static java.util.Objects.requireNonNull;
+import static java.util.concurrent.TimeUnit.MILLISECONDS;
+import static java.util.concurrent.TimeUnit.MINUTES;
+import static org.briarproject.bramble.api.lifecycle.LifecycleManager.LifecycleState.RUNNING;
+
+public class ContactInviteInputActivity extends BriarActivity implements
+		BaseFragmentListener {
+
+	@Inject
+	LifecycleManager lifecycleManager;
+	@Inject
+	MessagingManager messagingManager;
+	@Inject
+	Clock clock;
+
+	@Override
+	public void injectActivity(ActivityComponent component) {
+		component.inject(this);
+	}
+
+	@Override
+	public void onCreate(@Nullable Bundle state) {
+		super.onCreate(state);
+		setContentView(R.layout.activity_fragment_container);
+
+		ActionBar ab = getSupportActionBar();
+		if (ab != null) {
+			ab.setDisplayHomeAsUpEnabled(true);
+		}
+
+		Intent i = getIntent();
+		if (i != null) {
+			String action = i.getAction();
+			if (ACTION_SEND.equals(action) || ACTION_VIEW.equals(action)) {
+				String text = i.getStringExtra(EXTRA_TEXT);
+				if (text != null) {
+					showInitialFragment(
+							ContactLinkInputFragment.newInstance(text));
+					return;
+				}
+				String uri = i.getDataString();
+				if (uri != null) {
+					showInitialFragment(
+							ContactLinkInputFragment.newInstance(uri));
+					return;
+				}
+			} else if ("addContact".equals(action)) {
+				removeFakeRequest(i.getStringExtra("name"),
+						i.getLongExtra("timestamp", 0));
+				setIntent(null);
+				finish();
+			}
+		}
+		if (state == null) {
+			showInitialFragment(ContactLinkInputFragment.newInstance(null));
+		}
+	}
+
+	@Override
+	public boolean onOptionsItemSelected(MenuItem item) {
+		switch (item.getItemId()) {
+			case android.R.id.home:
+				onBackPressed();
+				return true;
+			default:
+				return super.onOptionsItemSelected(item);
+		}
+	}
+
+	boolean isBriarLink(CharSequence s) {
+		String link = s.toString().trim();
+		return link.matches("^(briar://)?[A-Z2-7]{64}$");
+	}
+
+	void showLink(@Nullable String link) {
+		showInitialFragment(ContactLinkInputFragment.newInstance(link));
+	}
+
+	void showCode() {
+		showNextFragment(new ContactQrCodeInputFragment());
+	}
+
+	void showAlias() {
+		showNextFragment(new ContactAliasInputFragment());
+	}
+
+	void addFakeRequest(String name) {
+		long timestamp = clock.currentTimeMillis();
+		try {
+			messagingManager.addNewPendingContact(name, timestamp);
+		} catch (DbException e) {
+			e.printStackTrace();
+		}
+
+		AlarmManager alarmManager =
+				(AlarmManager) requireNonNull(getSystemService(ALARM_SERVICE));
+		long m = MINUTES.toMillis(1);
+		long fromNow = (long) (-m * Math.log(new Random().nextDouble()));
+		long triggerAt = elapsedRealtime() + fromNow;
+
+		Intent i = new Intent(this, ContactInviteInputActivity.class);
+		i.setAction("addContact");
+		i.setFlags(FLAG_ACTIVITY_NEW_TASK);
+		i.putExtra("name", name);
+		i.putExtra("timestamp", timestamp);
+		PendingIntent pendingIntent = PendingIntent
+				.getActivity(this, (int) timestamp / 1000, i, 0);
+		alarmManager.set(ELAPSED_REALTIME, triggerAt, pendingIntent);
+
+		Log.e("TEST", "Setting Alarm in " + MILLISECONDS.toSeconds(fromNow) +
+				" seconds");
+		Log.e("TEST", "with contact: " + name);
+	}
+
+	private void removeFakeRequest(String name, long timestamp) {
+		if (lifecycleManager.getLifecycleState() != RUNNING) {
+			Log.e("TEST", "Lifecycle not started, not adding contact " + name);
+			return;
+		}
+		Log.e("TEST", "Adding Contact " + name);
+		try {
+			messagingManager.removePendingContact(name, timestamp);
+		} catch (DbException e) {
+			e.printStackTrace();
+		}
+	}
+
+}

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactInviteOutputActivity.java

@@ -0,0 +1,57 @@
+package org.briarproject.briar.android.contact;
+
+import android.os.Bundle;
+import android.support.v7.app.ActionBar;
+import android.view.MenuItem;
+
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.activity.BriarActivity;
+import org.briarproject.briar.android.fragment.BaseFragment.BaseFragmentListener;
+
+import javax.annotation.Nullable;
+
+public class ContactInviteOutputActivity extends BriarActivity implements
+		BaseFragmentListener {
+
+	@Override
+	public void injectActivity(ActivityComponent component) {
+		component.inject(this);
+	}
+
+	@Override
+	public void onCreate(@Nullable Bundle state) {
+		super.onCreate(state);
+
+		setContentView(R.layout.activity_fragment_container);
+
+		ActionBar ab = getSupportActionBar();
+		if (ab != null) {
+			ab.setDisplayHomeAsUpEnabled(true);
+		}
+
+		if (state == null) {
+			showInitialFragment(new ContactLinkOutputFragment());
+		}
+	}
+
+	@Override
+	public boolean onOptionsItemSelected(MenuItem item) {
+		switch (item.getItemId()) {
+			case android.R.id.home:
+				onBackPressed();
+				return true;
+			default:
+				return super.onOptionsItemSelected(item);
+		}
+	}
+
+	void showLink() {
+		showInitialFragment(new ContactLinkOutputFragment());
+	}
+
+	void showCode() {
+		showNextFragment(new ContactQrCodeOutputFragment());
+	}
+
+}

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactLinkInputFragment.java

@@ -0,0 +1,178 @@
+package org.briarproject.briar.android.contact;
+
+import android.content.ClipboardManager;
+import android.content.Intent;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.support.v7.app.AlertDialog;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.EditText;
+
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.fragment.BaseFragment;
+
+import javax.annotation.Nullable;
+
+import static android.content.ClipDescription.MIMETYPE_TEXT_PLAIN;
+import static android.content.Context.CLIPBOARD_SERVICE;
+import static android.os.Build.VERSION.SDK_INT;
+import static android.support.v4.graphics.drawable.DrawableCompat.setTint;
+import static android.support.v4.graphics.drawable.DrawableCompat.wrap;
+import static java.util.Objects.requireNonNull;
+import static org.briarproject.briar.android.util.UiUtils.resolveColorAttribute;
+
+@NotNullByDefault
+public class ContactLinkInputFragment extends BaseFragment
+		implements TextWatcher {
+
+	private ClipboardManager clipboard;
+	private EditText linkInput;
+	private Button pasteButton;
+	private EditText contactNameInput;
+	private Button addButton;
+
+	static BaseFragment newInstance(@Nullable String link) {
+		BaseFragment f = new ContactLinkInputFragment();
+		Bundle bundle = new Bundle();
+		bundle.putString("link", link);
+		f.setArguments(bundle);
+		return f;
+	}
+
+	@Nullable
+	@Override
+	public View onCreateView(LayoutInflater inflater,
+			@Nullable ViewGroup container,
+			@Nullable Bundle savedInstanceState) {
+
+		getActivity().setTitle(R.string.open_link_title);
+
+		View v = inflater.inflate(R.layout.fragment_contact_link_input,
+				container, false);
+
+		clipboard = (ClipboardManager) requireNonNull(
+				getContext().getSystemService(CLIPBOARD_SERVICE));
+
+		int color = resolveColorAttribute(getContext(), R.attr.colorControlNormal);
+
+		linkInput = v.findViewById(R.id.linkInput);
+		linkInput.addTextChangedListener(this);
+		if (SDK_INT < 23) {
+			Drawable drawable = wrap(linkInput.getCompoundDrawables()[0]);
+			setTint(drawable, color);
+			linkInput.setCompoundDrawables(drawable, null, null, null);
+		}
+
+		pasteButton = v.findViewById(R.id.pasteButton);
+		pasteButton.setOnClickListener(view -> linkInput
+				.setText(clipboard.getPrimaryClip().getItemAt(0).getText()));
+
+		contactNameInput = v.findViewById(R.id.contactNameInput);
+		contactNameInput.addTextChangedListener(this);
+		if (SDK_INT < 23) {
+			Drawable drawable =
+					wrap(contactNameInput.getCompoundDrawables()[0]);
+			setTint(drawable, color);
+			contactNameInput.setCompoundDrawables(drawable, null, null, null);
+		}
+
+		addButton = v.findViewById(R.id.addButton);
+		addButton.setOnClickListener(view -> onAddButtonClicked());
+
+		Button scanCodeButton = v.findViewById(R.id.scanCodeButton);
+		scanCodeButton.setOnClickListener(view ->
+				((ContactInviteInputActivity) getActivity()).showCode());
+
+		linkInput.setText(getArguments().getString("link"));
+
+		return v;
+	}
+
+	public static final String TAG = ContactLinkInputFragment.class.getName();
+
+	@Override
+	public String getUniqueTag() {
+		return TAG;
+	}
+
+	@Override
+	public void injectFragment(ActivityComponent component) {
+		component.inject(this);
+	}
+
+	@Override
+	public void onResume() {
+		super.onResume();
+		if (hasLinkInClipboard()) pasteButton.setEnabled(true);
+		else pasteButton.setEnabled(false);
+	}
+
+	private boolean hasLinkInClipboard() {
+		return clipboard.hasPrimaryClip() &&
+				clipboard.getPrimaryClip().getDescription()
+						.hasMimeType(MIMETYPE_TEXT_PLAIN) &&
+				clipboard.getPrimaryClip().getItemCount() > 0;
+	}
+
+	@Override
+	public void beforeTextChanged(CharSequence s, int start, int count,
+			int after) {
+	}
+
+	@Override
+	public void onTextChanged(CharSequence s, int start, int before,
+			int count) {
+		if (isBriarLink(linkInput.getText()) && getActivity() != null) {
+			updateAddButtonState();
+//			linkInput.setText(null);
+//			((ContactInviteInputActivity) getActivity()).showAlias();
+		}
+	}
+
+	@Override
+	public void afterTextChanged(Editable s) {
+	}
+
+	private boolean isBriarLink(CharSequence s) {
+		return getActivity() != null &&
+				((ContactInviteInputActivity) getActivity()).isBriarLink(s);
+	}
+
+	private void updateAddButtonState() {
+		addButton.setEnabled(isBriarLink(linkInput.getText()) &&
+				contactNameInput.getText().length() > 0);
+	}
+
+	private void onAddButtonClicked() {
+		if (getActivity() == null || getContext() == null) return;
+
+		((ContactInviteInputActivity) getActivity())
+				.addFakeRequest(contactNameInput.getText().toString());
+
+		AlertDialog.Builder builder = new AlertDialog.Builder(getContext(),
+				R.style.BriarDialogTheme_Neutral);
+		builder.setTitle("Contact requested");
+		builder.setMessage(getString(R.string.add_contact_link_question));
+		builder.setPositiveButton(R.string.yes, (dialog, which) -> {
+			Intent intent = new Intent(getContext(), PendingRequestsActivity.class);
+//			intent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TOP);
+			startActivity(intent);
+			finish();
+		});
+		builder.setNegativeButton(R.string.no, (dialog, which) -> {
+			startActivity(
+					new Intent(getContext(),
+							ContactInviteOutputActivity.class));
+			finish();
+		});
+		builder.show();
+	}
+
+}

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactLinkOutputFragment.java

@@ -0,0 +1,86 @@
+package org.briarproject.briar.android.contact;
+
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.fragment.BaseFragment;
+
+import javax.annotation.Nullable;
+
+import static android.content.Context.CLIPBOARD_SERVICE;
+import static android.content.Intent.ACTION_SEND;
+import static android.content.Intent.EXTRA_TEXT;
+import static android.widget.Toast.LENGTH_SHORT;
+import static org.briarproject.bramble.util.StringUtils.getRandomBase32String;
+
+@NotNullByDefault
+public class ContactLinkOutputFragment extends BaseFragment {
+
+	@Nullable
+	@Override
+	public View onCreateView(LayoutInflater inflater,
+			@Nullable ViewGroup container,
+			@Nullable Bundle savedInstanceState) {
+
+		getActivity().setTitle(R.string.send_link_title);
+
+		View v = inflater.inflate(R.layout.fragment_contact_link_output,
+				container, false);
+
+		String link = "briar://" + getRandomBase32String(64);
+
+		TextView linkView = v.findViewById(R.id.linkView);
+		linkView.setText(link);
+
+		ClipboardManager clipboard = (ClipboardManager)
+				getContext().getSystemService(CLIPBOARD_SERVICE);
+		if (clipboard == null) throw new AssertionError();
+		ClipData clip = ClipData.newPlainText(
+				getString(R.string.link_clip_label), link);
+
+		Button copyButton = v.findViewById(R.id.copyButton);
+		copyButton.setOnClickListener(view -> {
+			clipboard.setPrimaryClip(clip);
+			Toast.makeText(getContext(), R.string.link_copied_toast,
+					LENGTH_SHORT).show();
+		});
+
+		Button shareButton = v.findViewById(R.id.shareButton);
+		shareButton.setOnClickListener(view -> {
+			Intent i = new Intent(ACTION_SEND);
+			i.putExtra(EXTRA_TEXT, link);
+			i.setType("text/plain");
+			startActivity(i);
+		});
+
+		Button showCodeButton = v.findViewById(R.id.showCodeButton);
+		showCodeButton.setOnClickListener(
+				view -> ((ContactInviteOutputActivity) getActivity()).showCode());
+		return v;
+	}
+
+	public static final String TAG = ContactLinkOutputFragment.class.getName();
+
+	@Override
+	public String getUniqueTag() {
+		return TAG;
+	}
+
+	@Override
+	public void injectFragment(ActivityComponent component) {
+		component.inject(this);
+	}
+
+
+}

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactListFragment.java

@@ -1,10 +1,12 @@
 package org.briarproject.briar.android.contact;
 
 import android.content.Intent;
-import android.os.Build;
 import android.os.Bundle;
+import android.support.design.widget.FloatingActionButton;
+import android.support.design.widget.Snackbar;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.app.ActivityOptionsCompat;
+import android.support.v4.content.ContextCompat;
 import android.support.v4.util.Pair;
 import android.support.v7.widget.LinearLayoutManager;
 import android.view.LayoutInflater;
@@ -13,10 +15,12 @@ import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.TextView;
 
 import org.briarproject.bramble.api.contact.Contact;
 import org.briarproject.bramble.api.contact.ContactId;
 import org.briarproject.bramble.api.contact.ContactManager;
+import org.briarproject.bramble.api.contact.event.ContactAddedEvent;
 import org.briarproject.bramble.api.contact.event.ContactRemovedEvent;
 import org.briarproject.bramble.api.contact.event.ContactStatusChangedEvent;
 import org.briarproject.bramble.api.db.DbException;
@@ -36,27 +40,26 @@ import org.briarproject.briar.android.fragment.BaseFragment;
 import org.briarproject.briar.android.keyagreement.ContactExchangeActivity;
 import org.briarproject.briar.android.view.BriarRecyclerView;
 import org.briarproject.briar.api.android.AndroidNotificationManager;
-import org.briarproject.briar.api.client.BaseMessageHeader;
 import org.briarproject.briar.api.client.MessageTracker.GroupCount;
-import org.briarproject.briar.api.introduction.IntroductionRequest;
-import org.briarproject.briar.api.introduction.IntroductionResponse;
-import org.briarproject.briar.api.introduction.event.IntroductionRequestReceivedEvent;
-import org.briarproject.briar.api.introduction.event.IntroductionResponseReceivedEvent;
 import org.briarproject.briar.api.messaging.ConversationManager;
+import org.briarproject.briar.api.messaging.MessagingManager;
+import org.briarproject.briar.api.messaging.MessagingManager.PendingContact;
 import org.briarproject.briar.api.messaging.PrivateMessageHeader;
 import org.briarproject.briar.api.messaging.event.PrivateMessageReceivedEvent;
-import org.briarproject.briar.api.sharing.InvitationRequest;
-import org.briarproject.briar.api.sharing.InvitationResponse;
-import org.briarproject.briar.api.sharing.event.InvitationRequestReceivedEvent;
-import org.briarproject.briar.api.sharing.event.InvitationResponseReceivedEvent;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 import java.util.logging.Logger;
 
 import javax.annotation.Nullable;
 import javax.inject.Inject;
 
+import io.github.kobakei.materialfabspeeddial.FabSpeedDial;
+import io.github.kobakei.materialfabspeeddial.FabSpeedDial.OnMenuItemClickListener;
+
+import static android.os.Build.VERSION.SDK_INT;
+import static android.support.design.widget.Snackbar.LENGTH_INDEFINITE;
 import static android.support.v4.app.ActivityOptionsCompat.makeSceneTransitionAnimation;
 import static android.support.v4.view.ViewCompat.getTransitionName;
 import static java.util.logging.Level.WARNING;
@@ -67,7 +70,8 @@ import static org.briarproject.briar.android.contact.ConversationActivity.CONTAC
 
 @MethodsNotNullByDefault
 @ParametersNotNullByDefault
-public class ContactListFragment extends BaseFragment implements EventListener {
+public class ContactListFragment extends BaseFragment implements EventListener,
+		OnMenuItemClickListener {
 
 	public static final String TAG = ContactListFragment.class.getName();
 	private static final Logger LOG = Logger.getLogger(TAG);
@@ -79,8 +83,13 @@ public class ContactListFragment extends BaseFragment implements EventListener {
 	@Inject
 	AndroidNotificationManager notificationManager;
 
+	// TODO remove
+	@Inject
+	MessagingManager messagingManager;
+
 	private ContactListAdapter adapter;
 	private BriarRecyclerView list;
+	private Snackbar snackbar;
 
 	// Fields that are accessed from background threads must be volatile
 	@Inject
@@ -113,7 +122,12 @@ public class ContactListFragment extends BaseFragment implements EventListener {
 
 		getActivity().setTitle(R.string.contact_list_button);
 
-		View contentView = inflater.inflate(R.layout.list, container, false);
+		View contentView =
+				inflater.inflate(R.layout.fragment_contact_list, container,
+						false);
+
+		FabSpeedDial speedDialView = contentView.findViewById(R.id.speedDial);
+		speedDialView.addOnMenuItemClickListener(this);
 
 		OnContactClickListener<ContactListItem> onContactClickListener =
 				(view, item) -> {
@@ -122,7 +136,7 @@ public class ContactListFragment extends BaseFragment implements EventListener {
 					ContactId contactId = item.getContact().getId();
 					i.putExtra(CONTACT_ID, contactId.getInt());
 
-					if (Build.VERSION.SDK_INT >= 23) {
+					if (SDK_INT >= 23) {
 						ContactListItemViewHolder holder =
 								(ContactListItemViewHolder) list
 										.getRecyclerView()
@@ -152,12 +166,20 @@ public class ContactListFragment extends BaseFragment implements EventListener {
 		list.setEmptyText(getString(R.string.no_contacts));
 		list.setEmptyAction(getString(R.string.no_contacts_action));
 
+		snackbar = Snackbar.make(contentView,
+				R.string.pending_contact_requests_snackbar, LENGTH_INDEFINITE);
+		snackbar.getView().setBackgroundResource(R.color.briar_primary);
+		snackbar.setAction(R.string.show, v -> startActivity(
+				new Intent(getContext(), PendingRequestsActivity.class)));
+		snackbar.setActionTextColor(ContextCompat
+				.getColor(getContext(), R.color.briar_button_text_positive));
+
 		return contentView;
 	}
 
 	@Override
 	public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
-		inflater.inflate(R.menu.contact_list_actions, menu);
+//		inflater.inflate(R.menu.contact_list_actions, menu);
 		super.onCreateOptionsMenu(menu, inflater);
 	}
 
@@ -175,6 +197,28 @@ public class ContactListFragment extends BaseFragment implements EventListener {
 		}
 	}
 
+	@Override
+	public void onMenuItemClick(FloatingActionButton fab, TextView v,
+			int itemId) {
+		switch (itemId) {
+			case R.id.action_add_contact:
+				Intent intent =
+						new Intent(getContext(), ContactExchangeActivity.class);
+				startActivity(intent);
+				return;
+			case R.id.action_open_link:
+				startActivity(new Intent(getContext(),
+						ContactInviteInputActivity.class));
+				return;
+			case R.id.action_send_link:
+				startActivity(new Intent(getContext(),
+						ContactInviteOutputActivity.class));
+				return;
+			default:
+				return;
+		}
+	}
+
 	@Override
 	public void onStart() {
 		super.onStart();
@@ -183,6 +227,26 @@ public class ContactListFragment extends BaseFragment implements EventListener {
 		notificationManager.clearAllIntroductionNotifications();
 		loadContacts();
 		list.startPeriodicUpdate();
+
+		// TODO remove
+		checkForPendingContacts();
+	}
+
+	// TODO remove
+	private void checkForPendingContacts() {
+		listener.runOnDbThread(() -> {
+			try {
+				Collection<PendingContact> contacts =
+						messagingManager.getPendingContacts();
+				if (contacts.isEmpty()) {
+					runOnUiThreadUnlessDestroyed(() -> snackbar.dismiss());
+				} else {
+					runOnUiThreadUnlessDestroyed(() -> snackbar.show());
+				}
+			} catch (DbException e) {
+				e.printStackTrace();
+			}
+		});
 	}
 
 	@Override
@@ -256,41 +320,21 @@ public class ContactListFragment extends BaseFragment implements EventListener {
 			PrivateMessageReceivedEvent p = (PrivateMessageReceivedEvent) e;
 			PrivateMessageHeader h = p.getMessageHeader();
 			updateItem(p.getContactId(), h);
-		} else if (e instanceof IntroductionRequestReceivedEvent) {
-			LOG.info("Introduction request received, updating item");
-			IntroductionRequestReceivedEvent m =
-					(IntroductionRequestReceivedEvent) e;
-			IntroductionRequest ir = m.getIntroductionRequest();
-			updateItem(m.getContactId(), ir);
-		} else if (e instanceof IntroductionResponseReceivedEvent) {
-			LOG.info("Introduction response received, updating item");
-			IntroductionResponseReceivedEvent m =
-					(IntroductionResponseReceivedEvent) e;
-			IntroductionResponse ir = m.getIntroductionResponse();
-			updateItem(m.getContactId(), ir);
-		} else if (e instanceof InvitationRequestReceivedEvent) {
-			LOG.info("Invitation Request received, update item");
-			InvitationRequestReceivedEvent m =
-					(InvitationRequestReceivedEvent) e;
-			InvitationRequest ir = m.getRequest();
-			updateItem(m.getContactId(), ir);
-		} else if (e instanceof InvitationResponseReceivedEvent) {
-			LOG.info("Invitation response received, updating item");
-			InvitationResponseReceivedEvent m =
-					(InvitationResponseReceivedEvent) e;
-			InvitationResponse ir = m.getResponse();
-			updateItem(m.getContactId(), ir);
+		}
+
+		// TODO remove
+		else if (e instanceof ContactAddedEvent) {
+			checkForPendingContacts();
 		}
 	}
 
-	private void updateItem(ContactId c, BaseMessageHeader h) {
+	private void updateItem(ContactId c, PrivateMessageHeader h) {
 		runOnUiThreadUnlessDestroyed(() -> {
 			adapter.incrementRevision();
 			int position = adapter.findItemPosition(c);
 			ContactListItem item = adapter.getItemAt(position);
 			if (item != null) {
-				ConversationItem i = ConversationItem.from(getContext(), h);
-				item.addMessage(i);
+				item.addMessage(h);
 				adapter.updateItemAt(position, item);
 			}
 		});

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactListItem.java

@@ -3,6 +3,7 @@ package org.briarproject.briar.android.contact;
 import org.briarproject.bramble.api.contact.Contact;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.briar.api.client.MessageTracker.GroupCount;
+import org.briarproject.briar.api.messaging.PrivateMessageHeader;
 
 import javax.annotation.concurrent.NotThreadSafe;
 
@@ -22,11 +23,10 @@ public class ContactListItem extends ContactItem {
 		this.timestamp = count.getLatestMsgTime();
 	}
 
-	void addMessage(ConversationItem message) {
+	void addMessage(PrivateMessageHeader h) {
 		empty = false;
-		if (message.getTime() > timestamp) timestamp = message.getTime();
-		if (!message.isRead())
-			unread++;
+		if (h.getTimestamp() > timestamp) timestamp = h.getTimestamp();
+		if (!h.isRead()) unread++;
 	}
 
 	boolean isEmpty() {

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactQrCodeInputFragment.java

@@ -0,0 +1,181 @@
+package org.briarproject.briar.android.contact;
+
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.v4.app.ActivityCompat;
+import android.support.v7.app.AlertDialog;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Toast;
+
+import com.google.zxing.Result;
+
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.fragment.BaseFragment;
+import org.briarproject.briar.android.keyagreement.CameraException;
+import org.briarproject.briar.android.keyagreement.CameraView;
+import org.briarproject.briar.android.keyagreement.QrCodeDecoder;
+import org.briarproject.briar.android.util.UiUtils;
+
+import javax.annotation.Nullable;
+
+import static android.Manifest.permission.CAMERA;
+import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_NOSENSOR;
+import static android.content.pm.PackageManager.PERMISSION_GRANTED;
+import static android.widget.Toast.LENGTH_LONG;
+import static android.widget.Toast.LENGTH_SHORT;
+import static org.briarproject.briar.android.activity.RequestCodes.REQUEST_PERMISSION_CAMERA;
+
+@NotNullByDefault
+public class ContactQrCodeInputFragment extends BaseFragment
+		implements QrCodeDecoder.ResultCallback {
+
+	private CameraView cameraView;
+
+	@Override
+	public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+		super.onActivityCreated(savedInstanceState);
+		getActivity().setRequestedOrientation(SCREEN_ORIENTATION_NOSENSOR);
+		cameraView.setPreviewConsumer(new QrCodeDecoder(this));
+	}
+
+	@Nullable
+	@Override
+	public View onCreateView(LayoutInflater inflater,
+			@Nullable ViewGroup container,
+			@Nullable Bundle savedInstanceState) {
+
+		getActivity().setTitle("Scan QR Code");
+
+		View v = inflater.inflate(R.layout.fragment_contact_qr_code_input,
+				container, false);
+
+		cameraView = v.findViewById(R.id.camera_view);
+
+
+//		Button enterLinkButton = v.findViewById(R.id.enterLinkButton);
+//		enterLinkButton.setOnClickListener(view ->
+//				((ContactInviteInputActivity) getActivity()).showLink());
+
+		return v;
+	}
+
+	public static final String TAG = ContactQrCodeInputFragment.class.getName();
+
+	@Override
+	public void onStart() {
+		super.onStart();
+		if (checkPermissions()) {
+			startCamera();
+		}
+	}
+
+	@Override
+	public void onStop() {
+		super.onStop();
+		try {
+			cameraView.stop();
+		} catch (CameraException e) {
+			e.printStackTrace();
+		}
+	}
+
+	private void startCamera() {
+		try {
+			cameraView.start();
+		} catch (CameraException e) {
+			e.printStackTrace();
+			Toast.makeText(getContext(), "Camera Error", LENGTH_SHORT)
+					.show();
+		}
+	}
+
+	@Override
+	public String getUniqueTag() {
+		return TAG;
+	}
+
+	@Override
+	public void injectFragment(ActivityComponent component) {
+		component.inject(this);
+	}
+
+	private boolean checkPermissions() {
+		if (ActivityCompat.checkSelfPermission(getContext(), CAMERA) !=
+				PERMISSION_GRANTED) {
+			// Should we show an explanation?
+			if (shouldShowRequestPermissionRationale(CAMERA)) {
+				DialogInterface.OnClickListener continueListener =
+						(dialog, which) -> requestPermission();
+				AlertDialog.Builder
+						builder = new AlertDialog.Builder(getContext(), R.style.BriarDialogTheme);
+				builder.setTitle(R.string.permission_camera_title);
+				builder.setMessage(R.string.permission_camera_request_body);
+				builder.setNeutralButton(R.string.continue_button,
+						continueListener);
+				builder.show();
+			} else {
+				requestPermission();
+			}
+			return false;
+		} else {
+			return true;
+		}
+	}
+
+	@Override
+	public void onRequestPermissionsResult(int requestCode,
+			@NonNull String[] permissions, @NonNull int[] grantResults) {
+		if (requestCode == REQUEST_PERMISSION_CAMERA) {
+			// If request is cancelled, the result arrays are empty.
+			if (grantResults.length > 0 &&
+					grantResults[0] == PERMISSION_GRANTED) {
+				startCamera();
+			} else {
+				if (!shouldShowRequestPermissionRationale(CAMERA)) {
+					// The user has permanently denied the request
+					AlertDialog.Builder
+							builder = new AlertDialog.Builder(getContext(),
+							R.style.BriarDialogTheme);
+					builder.setTitle(R.string.permission_camera_title);
+					builder.setMessage(R.string.permission_camera_denied_body);
+					builder.setPositiveButton(R.string.ok,
+							UiUtils.getGoToSettingsListener(getContext()));
+					builder.setNegativeButton(R.string.cancel,
+							(dialog, which) -> showLink(null));
+					builder.show();
+				} else {
+					Toast.makeText(getContext(),
+							R.string.permission_camera_denied_toast,
+							LENGTH_LONG).show();
+					showLink(null);
+				}
+			}
+		}
+	}
+
+	private void requestPermission() {
+		requestPermissions(new String[] {CAMERA}, REQUEST_PERMISSION_CAMERA);
+	}
+
+	private void showLink(@Nullable String link) {
+		if (getActivity() != null)
+			((ContactInviteInputActivity) getActivity()).showLink(link);
+	}
+
+	@Override
+	public void handleResult(Result result) {
+		Log.e("TEST", result.toString());
+		if (getActivity() != null &&
+				((ContactInviteInputActivity) getActivity())
+						.isBriarLink(result.getText())) {
+			showLink(result.getText());
+		}
+	}
+
+}

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactQrCodeOutputFragment.java

@@ -0,0 +1,73 @@
+package org.briarproject.briar.android.contact;
+
+import android.graphics.Bitmap;
+import android.os.Bundle;
+import android.util.DisplayMetrics;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.fragment.BaseFragment;
+import org.briarproject.briar.android.view.QrCodeView;
+
+import javax.annotation.Nullable;
+
+import static android.view.View.GONE;
+import static android.view.View.VISIBLE;
+import static org.briarproject.bramble.util.StringUtils.getRandomBase32String;
+import static org.briarproject.briar.android.keyagreement.QrCodeUtils.createQrCode;
+
+@NotNullByDefault
+public class ContactQrCodeOutputFragment extends BaseFragment
+		implements QrCodeView.FullscreenListener {
+
+	private View linkIntro;
+
+	@Nullable
+	@Override
+	public View onCreateView(LayoutInflater inflater,
+			@Nullable ViewGroup container,
+			@Nullable Bundle savedInstanceState) {
+
+		getActivity().setTitle("Show my QR Code");
+
+		View v = inflater.inflate(R.layout.fragment_contact_qr_code_output,
+				container, false);
+		linkIntro = v.findViewById(R.id.linkIntro);
+
+		String link = "briar://" + getRandomBase32String(64);
+		DisplayMetrics dm = getResources().getDisplayMetrics();
+		Bitmap qrCode = createQrCode(dm, link);
+		QrCodeView qrCodeView = v.findViewById(R.id.qrCodeView);
+		qrCodeView.setQrCode(qrCode);
+		qrCodeView.setFullscreenListener(this);
+
+		Button showLinkButton = v.findViewById(R.id.showLinkButton);
+		showLinkButton.setOnClickListener(
+				view -> ((ContactInviteOutputActivity) getActivity()).showLink());
+
+		return v;
+	}
+
+	public static final String TAG = ContactQrCodeOutputFragment.class.getName();
+
+	@Override
+	public String getUniqueTag() {
+		return TAG;
+	}
+
+	@Override
+	public void injectFragment(ActivityComponent component) {
+		component.inject(this);
+	}
+
+	@Override
+	public void setFullscreen(boolean fullscreen) {
+		linkIntro.setVisibility(fullscreen ? GONE : VISIBLE);
+	}
+
+}

briar-android/src/main/java/org/briarproject/briar/android/contact/ConversationActivity.java

@@ -1,8 +1,11 @@
 package org.briarproject.briar.android.contact;
 
+import android.arch.lifecycle.MutableLiveData;
+import android.arch.lifecycle.Observer;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.os.Bundle;
+import android.support.annotation.Nullable;
 import android.support.annotation.UiThread;
 import android.support.design.widget.Snackbar;
 import android.support.v4.content.ContextCompat;
@@ -50,6 +53,7 @@ import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.activity.BriarActivity;
 import org.briarproject.briar.android.blog.BlogActivity;
 import org.briarproject.briar.android.contact.ConversationAdapter.ConversationListener;
+import org.briarproject.briar.android.contact.ConversationVisitor.BodyCache;
 import org.briarproject.briar.android.forum.ForumActivity;
 import org.briarproject.briar.android.introduction.IntroductionActivity;
 import org.briarproject.briar.android.privategroup.conversation.GroupActivity;
@@ -62,24 +66,15 @@ import org.briarproject.briar.api.client.ProtocolStateException;
 import org.briarproject.briar.api.client.SessionId;
 import org.briarproject.briar.api.forum.ForumSharingManager;
 import org.briarproject.briar.api.introduction.IntroductionManager;
-import org.briarproject.briar.api.introduction.IntroductionMessage;
-import org.briarproject.briar.api.introduction.IntroductionRequest;
-import org.briarproject.briar.api.introduction.IntroductionResponse;
-import org.briarproject.briar.api.introduction.event.IntroductionRequestReceivedEvent;
-import org.briarproject.briar.api.introduction.event.IntroductionResponseReceivedEvent;
+import org.briarproject.briar.api.messaging.ConversationManager;
 import org.briarproject.briar.api.messaging.MessagingManager;
 import org.briarproject.briar.api.messaging.PrivateMessage;
 import org.briarproject.briar.api.messaging.PrivateMessageFactory;
 import org.briarproject.briar.api.messaging.PrivateMessageHeader;
+import org.briarproject.briar.api.messaging.PrivateRequest;
+import org.briarproject.briar.api.messaging.PrivateResponse;
 import org.briarproject.briar.api.messaging.event.PrivateMessageReceivedEvent;
 import org.briarproject.briar.api.privategroup.invitation.GroupInvitationManager;
-import org.briarproject.briar.api.sharing.InvitationMessage;
-import org.briarproject.briar.api.sharing.InvitationRequest;
-import org.briarproject.briar.api.sharing.InvitationResponse;
-import org.briarproject.briar.api.sharing.event.InvitationRequestReceivedEvent;
-import org.briarproject.briar.api.sharing.event.InvitationResponseReceivedEvent;
-import org.thoughtcrime.securesms.components.util.FutureTaskListener;
-import org.thoughtcrime.securesms.components.util.ListenableFutureTask;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -87,13 +82,10 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
-import java.util.concurrent.Callable;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.Executor;
-import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.logging.Logger;
 
-import javax.annotation.Nullable;
 import javax.inject.Inject;
 
 import de.hdodenhof.circleimageview.CircleImageView;
@@ -120,7 +112,8 @@ import static uk.co.samuelwall.materialtaptargetprompt.MaterialTapTargetPrompt.S
 @MethodsNotNullByDefault
 @ParametersNotNullByDefault
 public class ConversationActivity extends BriarActivity
-		implements EventListener, ConversationListener, TextInputListener {
+		implements EventListener, ConversationListener, TextInputListener,
+		BodyCache {
 
 	public static final String CONTACT_ID = "briar.CONTACT_ID";
 
@@ -138,7 +131,9 @@ public class ConversationActivity extends BriarActivity
 	Executor cryptoExecutor;
 
 	private final Map<MessageId, String> bodyCache = new ConcurrentHashMap<>();
+	private final MutableLiveData<String> contactName = new MutableLiveData<>();
 
+	private ConversationVisitor visitor;
 	private ConversationAdapter adapter;
 	private Toolbar toolbar;
 	private CircleImageView toolbarAvatar;
@@ -147,24 +142,14 @@ public class ConversationActivity extends BriarActivity
 	private BriarRecyclerView list;
 	private TextInputView textInputView;
 
-	private final ListenableFutureTask<String> contactNameTask =
-			new ListenableFutureTask<>(new Callable<String>() {
-				@Override
-				public String call() throws Exception {
-					Contact c = contactManager.getContact(contactId);
-					contactName = c.getAuthor().getName();
-					return c.getAuthor().getName();
-				}
-			});
-	private final AtomicBoolean contactNameTaskStarted =
-			new AtomicBoolean(false);
-
 	// Fields that are accessed from background threads must be volatile
 	@Inject
 	volatile ContactManager contactManager;
 	@Inject
 	volatile MessagingManager messagingManager;
 	@Inject
+	volatile ConversationManager conversationManager;
+	@Inject
 	volatile EventBus eventBus;
 	@Inject
 	volatile SettingsManager settingsManager;
@@ -181,8 +166,6 @@ public class ConversationActivity extends BriarActivity
 
 	private volatile ContactId contactId;
 	@Nullable
-	private volatile String contactName;
-	@Nullable
 	private volatile AuthorId contactAuthorId;
 	@Nullable
 	private volatile GroupId messagingGroupId;
@@ -211,6 +194,7 @@ public class ConversationActivity extends BriarActivity
 		setTransitionName(toolbarAvatar, getAvatarTransitionName(contactId));
 		setTransitionName(toolbarStatus, getBulbTransitionName(contactId));
 
+		visitor = new ConversationVisitor(this, this, contactName);
 		adapter = new ConversationAdapter(this, this);
 		list = findViewById(R.id.conversationView);
 		list.setLayoutManager(new LinearLayoutManager(this));
@@ -294,9 +278,9 @@ public class ConversationActivity extends BriarActivity
 		runOnDbThread(() -> {
 			try {
 				long start = now();
-				if (contactName == null || contactAuthorId == null) {
+				if (contactAuthorId == null) {
 					Contact contact = contactManager.getContact(contactId);
-					contactName = contact.getAuthor().getName();
+					contactName.postValue(contact.getAuthor().getName());
 					contactAuthorId = contact.getAuthor().getId();
 				}
 				logDuration(LOG, "Loading contact", start);
@@ -310,12 +294,13 @@ public class ConversationActivity extends BriarActivity
 		});
 	}
 
+	// contactAuthorId and contactName are expected to be set
 	private void displayContactDetails() {
 		runOnUiThreadUnlessDestroyed(() -> {
 			//noinspection ConstantConditions
 			toolbarAvatar.setImageDrawable(
 					new IdenticonDrawable(contactAuthorId.getBytes()));
-			toolbarTitle.setText(contactName);
+			toolbarTitle.setText(contactName.getValue());
 		});
 	}
 
@@ -343,23 +328,9 @@ public class ConversationActivity extends BriarActivity
 			try {
 				long start = now();
 				Collection<PrivateMessageHeader> headers =
-						messagingManager.getMessageHeaders(contactId);
-				Collection<IntroductionMessage> introductions =
-						introductionManager.getIntroductionMessages(contactId);
-				Collection<InvitationMessage> forumInvitations =
-						forumSharingManager.getInvitationMessages(contactId);
-				Collection<InvitationMessage> blogInvitations =
-						blogSharingManager.getInvitationMessages(contactId);
-				Collection<InvitationMessage> groupInvitations =
-						groupInvitationManager.getInvitationMessages(contactId);
-				List<InvitationMessage> invitations = new ArrayList<>(
-						forumInvitations.size() + blogInvitations.size() +
-								groupInvitations.size());
-				invitations.addAll(forumInvitations);
-				invitations.addAll(blogInvitations);
-				invitations.addAll(groupInvitations);
+						conversationManager.getMessageHeaders(contactId);
 				logDuration(LOG, "Loading messages", start);
-				displayMessages(revision, headers, introductions, invitations);
+				displayMessages(revision, headers);
 			} catch (NoSuchContactException e) {
 				finishOnUiThread();
 			} catch (DbException e) {
@@ -369,15 +340,12 @@ public class ConversationActivity extends BriarActivity
 	}
 
 	private void displayMessages(int revision,
-			Collection<PrivateMessageHeader> headers,
-			Collection<IntroductionMessage> introductions,
-			Collection<InvitationMessage> invitations) {
+			Collection<PrivateMessageHeader> headers) {
 		runOnUiThreadUnlessDestroyed(() -> {
 			if (revision == adapter.getRevision()) {
 				adapter.incrementRevision();
 				textInputView.setSendButtonEnabled(true);
-				List<ConversationItem> items = createItems(headers,
-						introductions, invitations);
+				List<ConversationItem> items = createItems(headers);
 				adapter.addAll(items);
 				list.showData();
 				// Scroll to the bottom
@@ -396,41 +364,9 @@ public class ConversationActivity extends BriarActivity
 	 */
 	@SuppressWarnings("ConstantConditions")
 	private List<ConversationItem> createItems(
-			Collection<PrivateMessageHeader> headers,
-			Collection<IntroductionMessage> introductions,
-			Collection<InvitationMessage> invitations) {
-		int size =
-				headers.size() + introductions.size() + invitations.size();
-		List<ConversationItem> items = new ArrayList<>(size);
-		for (PrivateMessageHeader h : headers) {
-			ConversationItem item = ConversationItem.from(h);
-			String body = bodyCache.get(h.getId());
-			if (body == null) loadMessageBody(h.getId());
-			else item.setBody(body);
-			items.add(item);
-		}
-		for (IntroductionMessage m : introductions) {
-			ConversationItem item;
-			if (m instanceof IntroductionRequest) {
-				IntroductionRequest i = (IntroductionRequest) m;
-				item = ConversationItem.from(this, contactName, i);
-			} else {
-				IntroductionResponse i = (IntroductionResponse) m;
-				item = ConversationItem.from(this, contactName, i);
-			}
-			items.add(item);
-		}
-		for (InvitationMessage i : invitations) {
-			ConversationItem item;
-			if (i instanceof InvitationRequest) {
-				InvitationRequest r = (InvitationRequest) i;
-				item = ConversationItem.from(this, contactName, r);
-			} else {
-				InvitationResponse r = (InvitationResponse) i;
-				item = ConversationItem.from(this, contactName, r);
-			}
-			items.add(item);
-		}
+			Collection<PrivateMessageHeader> headers) {
+		List<ConversationItem> items = new ArrayList<>(headers.size());
+		for (PrivateMessageHeader h : headers) items.add(h.accept(visitor));
 		return items;
 	}
 
@@ -476,9 +412,7 @@ public class ConversationActivity extends BriarActivity
 			PrivateMessageReceivedEvent p = (PrivateMessageReceivedEvent) e;
 			if (p.getContactId().equals(contactId)) {
 				LOG.info("Message received, adding");
-				PrivateMessageHeader h = p.getMessageHeader();
-				addConversationItem(ConversationItem.from(h));
-				loadMessageBody(h.getId());
+				onNewPrivateMessage(p.getMessageHeader());
 			}
 		} else if (e instanceof MessagesSentEvent) {
 			MessagesSentEvent m = (MessagesSentEvent) e;
@@ -504,38 +438,6 @@ public class ConversationActivity extends BriarActivity
 				LOG.info("Contact disconnected");
 				displayContactOnlineStatus();
 			}
-		} else if (e instanceof IntroductionRequestReceivedEvent) {
-			IntroductionRequestReceivedEvent event =
-					(IntroductionRequestReceivedEvent) e;
-			if (event.getContactId().equals(contactId)) {
-				LOG.info("Introduction request received, adding...");
-				IntroductionRequest ir = event.getIntroductionRequest();
-				handleIntroductionRequest(ir);
-			}
-		} else if (e instanceof IntroductionResponseReceivedEvent) {
-			IntroductionResponseReceivedEvent event =
-					(IntroductionResponseReceivedEvent) e;
-			if (event.getContactId().equals(contactId)) {
-				LOG.info("Introduction response received, adding...");
-				IntroductionResponse ir = event.getIntroductionResponse();
-				handleIntroductionResponse(ir);
-			}
-		} else if (e instanceof InvitationRequestReceivedEvent) {
-			InvitationRequestReceivedEvent event =
-					(InvitationRequestReceivedEvent) e;
-			if (event.getContactId().equals(contactId)) {
-				LOG.info("Invitation received, adding...");
-				InvitationRequest ir = event.getRequest();
-				handleInvitationRequest(ir);
-			}
-		} else if (e instanceof InvitationResponseReceivedEvent) {
-			InvitationResponseReceivedEvent event =
-					(InvitationResponseReceivedEvent) e;
-			if (event.getContactId().equals(contactId)) {
-				LOG.info("Invitation response received, adding...");
-				InvitationResponse ir = event.getResponse();
-				handleInvitationResponse(ir);
-			}
 		}
 	}
 
@@ -548,84 +450,33 @@ public class ConversationActivity extends BriarActivity
 		});
 	}
 
-	private void handleIntroductionRequest(IntroductionRequest m) {
-		getContactNameTask().addListener(new FutureTaskListener<String>() {
-			@Override
-			public void onSuccess(String contactName) {
-				runOnUiThreadUnlessDestroyed(() -> {
-					ConversationItem item = ConversationItem
-							.from(ConversationActivity.this, contactName, m);
-					addConversationItem(item);
-				});
-			}
-
-			@Override
-			public void onFailure(Throwable exception) {
-				runOnUiThreadUnlessDestroyed(
-						() -> handleDbException((DbException) exception));
+	private void onNewPrivateMessage(PrivateMessageHeader h) {
+		runOnUiThreadUnlessDestroyed(() -> {
+			if (h instanceof PrivateRequest || h instanceof PrivateResponse) {
+				String cName = contactName.getValue();
+				if (cName == null) {
+					// Wait for the contact name to be loaded
+					contactName.observe(this, new Observer<String>() {
+						@Override
+						public void onChanged(@Nullable String cName) {
+							if (cName != null) {
+								addConversationItem(h.accept(visitor));
+								contactName.removeObserver(this);
+							}
+						}
+					});
+				} else {
+					addConversationItem(h.accept(visitor));
+				}
+			} else {
+				addConversationItem(h.accept(visitor));
+				loadMessageBody(h.getId());
 			}
 		});
 	}
 
-	private void handleIntroductionResponse(IntroductionResponse m) {
-		getContactNameTask().addListener(new FutureTaskListener<String>() {
-			@Override
-			public void onSuccess(String contactName) {
-				runOnUiThreadUnlessDestroyed(() -> {
-					ConversationItem item = ConversationItem
-							.from(ConversationActivity.this, contactName, m);
-					addConversationItem(item);
-				});
-			}
-
-			@Override
-			public void onFailure(Throwable exception) {
-				runOnUiThreadUnlessDestroyed(
-						() -> handleDbException((DbException) exception));
-			}
-		});
-	}
-
-	private void handleInvitationRequest(InvitationRequest m) {
-		getContactNameTask().addListener(new FutureTaskListener<String>() {
-			@Override
-			public void onSuccess(String contactName) {
-				runOnUiThreadUnlessDestroyed(() -> {
-					ConversationItem item = ConversationItem
-							.from(ConversationActivity.this, contactName, m);
-					addConversationItem(item);
-				});
-			}
-
-			@Override
-			public void onFailure(Throwable exception) {
-				runOnUiThreadUnlessDestroyed(
-						() -> handleDbException((DbException) exception));
-			}
-		});
-	}
-
-	private void handleInvitationResponse(InvitationResponse m) {
-		getContactNameTask().addListener(new FutureTaskListener<String>() {
-			@Override
-			public void onSuccess(String contactName) {
-				runOnUiThreadUnlessDestroyed(() -> {
-					ConversationItem item = ConversationItem
-							.from(ConversationActivity.this, contactName, m);
-					addConversationItem(item);
-				});
-			}
-
-			@Override
-			public void onFailure(Throwable exception) {
-				runOnUiThreadUnlessDestroyed(
-						() -> handleDbException((DbException) exception));
-			}
-		});
-	}
-
-	private void markMessages(Collection<MessageId> messageIds,
-			boolean sent, boolean seen) {
+	private void markMessages(Collection<MessageId> messageIds, boolean sent,
+			boolean seen) {
 		runOnUiThreadUnlessDestroyed(() -> {
 			adapter.incrementRevision();
 			Set<MessageId> messages = new HashSet<>(messageIds);
@@ -678,7 +529,8 @@ public class ConversationActivity extends BriarActivity
 				//noinspection ConstantConditions init in loadGroupId()
 				storeMessage(privateMessageFactory.createPrivateMessage(
 						messagingGroupId, timestamp, body), body);
-			} catch (FormatException e) {throw new RuntimeException(e);
+			} catch (FormatException e) {
+				throw new RuntimeException(e);
 			}
 		});
 	}
@@ -693,10 +545,8 @@ public class ConversationActivity extends BriarActivity
 				PrivateMessageHeader h = new PrivateMessageHeader(
 						message.getId(), message.getGroupId(),
 						message.getTimestamp(), true, false, false, false);
-				ConversationItem item = ConversationItem.from(h);
-				item.setBody(body);
 				bodyCache.put(message.getId(), body);
-				addConversationItem(item);
+				addConversationItem(h.accept(visitor));
 			} catch (DbException e) {
 				logException(LOG, WARNING, e);
 			}
@@ -823,7 +673,7 @@ public class ConversationActivity extends BriarActivity
 	@UiThread
 	@Override
 	public void respondToRequest(ConversationRequestItem item, boolean accept) {
-		item.setAnswered(true);
+		item.setAnswered();
 		int position = adapter.findItemPosition(item);
 		if (position != INVALID_POSITION) {
 			adapter.notifyItemChanged(position, item);
@@ -909,10 +759,11 @@ public class ConversationActivity extends BriarActivity
 		groupInvitationManager.respondToInvitation(contactId, id, accept);
 	}
 
-	private ListenableFutureTask<String> getContactNameTask() {
-		if (!contactNameTaskStarted.getAndSet(true))
-			runOnDbThread(contactNameTask);
-		return contactNameTask;
+	@Nullable
+	@Override
+	public String getBody(MessageId m) {
+		String body = bodyCache.get(m);
+		if (body == null) loadMessageBody(m);
+		return body;
 	}
-
 }

briar-android/src/main/java/org/briarproject/briar/android/contact/ConversationItem.java

@@ -1,40 +1,20 @@
 package org.briarproject.briar.android.contact;
 
-import android.content.Context;
 import android.support.annotation.LayoutRes;
-import android.support.annotation.StringRes;
 
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.sync.GroupId;
 import org.briarproject.bramble.api.sync.MessageId;
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.contact.ConversationRequestItem.RequestType;
-import org.briarproject.briar.api.blog.BlogInvitationRequest;
-import org.briarproject.briar.api.blog.BlogInvitationResponse;
-import org.briarproject.briar.api.client.BaseMessageHeader;
-import org.briarproject.briar.api.forum.ForumInvitationRequest;
-import org.briarproject.briar.api.forum.ForumInvitationResponse;
-import org.briarproject.briar.api.introduction.IntroductionRequest;
-import org.briarproject.briar.api.introduction.IntroductionResponse;
-import org.briarproject.briar.api.messaging.PrivateMessageHeader;
-import org.briarproject.briar.api.privategroup.invitation.GroupInvitationRequest;
-import org.briarproject.briar.api.privategroup.invitation.GroupInvitationResponse;
-import org.briarproject.briar.api.sharing.InvitationRequest;
-import org.briarproject.briar.api.sharing.InvitationResponse;
 
 import javax.annotation.Nullable;
 import javax.annotation.concurrent.NotThreadSafe;
 
-import static org.briarproject.briar.android.contact.ConversationRequestItem.RequestType.BLOG;
-import static org.briarproject.briar.android.contact.ConversationRequestItem.RequestType.FORUM;
-import static org.briarproject.briar.android.contact.ConversationRequestItem.RequestType.GROUP;
-import static org.briarproject.briar.android.contact.ConversationRequestItem.RequestType.INTRODUCTION;
-
 @NotThreadSafe
 @NotNullByDefault
 abstract class ConversationItem {
 
-	protected @Nullable String body;
+	@Nullable
+	protected String body;
 	private final MessageId id;
 	private final GroupId groupId;
 	private final long time;
@@ -78,216 +58,4 @@ abstract class ConversationItem {
 
 	@LayoutRes
 	abstract public int getLayout();
-
-	static ConversationItem from(PrivateMessageHeader h) {
-		if (h.isLocal()) {
-			return new ConversationMessageOutItem(h);
-		} else {
-			return new ConversationMessageInItem(h);
-		}
-	}
-
-	static ConversationItem from(Context ctx, String contactName,
-			IntroductionRequest ir) {
-		if (ir.isLocal()) {
-			String text = ctx.getString(R.string.introduction_request_sent,
-					contactName, ir.getName());
-			return new ConversationNoticeOutItem(ir.getMessageId(),
-					ir.getGroupId(), text, ir.getMessage(), ir.getTimestamp(),
-					ir.isSent(), ir.isSeen());
-		} else {
-			String text;
-			if (ir.wasAnswered()) {
-				text = ctx.getString(
-						R.string.introduction_request_answered_received,
-						contactName, ir.getName());
-			} else if (ir.contactExists()){
-				text = ctx.getString(
-						R.string.introduction_request_exists_received,
-						contactName, ir.getName());
-			} else {
-				text = ctx.getString(R.string.introduction_request_received,
-						contactName, ir.getName());
-			}
-			return new ConversationRequestItem(ir.getMessageId(),
-					ir.getGroupId(), INTRODUCTION, ir.getSessionId(), text,
-					ir.getMessage(), ir.getTimestamp(), ir.isRead(), null,
-					ir.wasAnswered(), false);
-		}
-	}
-
-	static ConversationItem from(Context ctx, String contactName,
-			IntroductionResponse ir) {
-		if (ir.isLocal()) {
-			String text;
-			if (ir.wasAccepted()) {
-				text = ctx.getString(
-						R.string.introduction_response_accepted_sent,
-						ir.getName());
-				text += "\n\n" + ctx.getString(
-						R.string.introduction_response_accepted_sent_info,
-						ir.getName());
-			} else {
-				text = ctx.getString(
-						R.string.introduction_response_declined_sent,
-						ir.getName());
-			}
-			return new ConversationNoticeOutItem(ir.getMessageId(),
-					ir.getGroupId(), text, null, ir.getTimestamp(), ir.isSent(),
-					ir.isSeen());
-		} else {
-			String text;
-			if (ir.wasAccepted()) {
-				text = ctx.getString(
-						R.string.introduction_response_accepted_received,
-						contactName, ir.getName());
-			} else {
-				if (ir.isIntroducer()) {
-					text = ctx.getString(
-							R.string.introduction_response_declined_received,
-							contactName, ir.getName());
-				} else {
-					text = ctx.getString(
-							R.string.introduction_response_declined_received_by_introducee,
-							contactName, ir.getName());
-				}
-			}
-			return new ConversationNoticeInItem(ir.getMessageId(),
-					ir.getGroupId(), text, null, ir.getTimestamp(),
-					ir.isRead());
-		}
-	}
-
-	static ConversationItem from(Context ctx, String contactName,
-			InvitationRequest ir) {
-		if (ir.isLocal()) {
-			String text;
-			if (ir instanceof ForumInvitationRequest) {
-				text = ctx.getString(R.string.forum_invitation_sent,
-						((ForumInvitationRequest) ir).getForumName(),
-						contactName);
-			} else if (ir instanceof BlogInvitationRequest) {
-				text = ctx.getString(R.string.blogs_sharing_invitation_sent,
-						((BlogInvitationRequest) ir).getBlogAuthorName(),
-						contactName);
-			} else if (ir instanceof GroupInvitationRequest) {
-				text = ctx.getString(
-						R.string.groups_invitations_invitation_sent,
-						contactName, ir.getShareable().getName());
-			} else {
-				throw new IllegalArgumentException("Unknown InvitationRequest");
-			}
-			return new ConversationNoticeOutItem(ir.getId(), ir.getGroupId(),
-					text, ir.getMessage(), ir.getTimestamp(), ir.isSent(),
-					ir.isSeen());
-		} else {
-			String text;
-			RequestType type;
-			if (ir instanceof ForumInvitationRequest) {
-				text = ctx.getString(R.string.forum_invitation_received,
-						contactName,
-						((ForumInvitationRequest) ir).getForumName());
-				type = FORUM;
-			} else if (ir instanceof BlogInvitationRequest) {
-				text = ctx.getString(R.string.blogs_sharing_invitation_received,
-						contactName,
-						((BlogInvitationRequest) ir).getBlogAuthorName());
-				type = BLOG;
-			} else if (ir instanceof GroupInvitationRequest) {
-				text = ctx.getString(
-						R.string.groups_invitations_invitation_received,
-						contactName, ir.getShareable().getName());
-				type = GROUP;
-			} else {
-				throw new IllegalArgumentException("Unknown InvitationRequest");
-			}
-			return new ConversationRequestItem(ir.getId(),
-					ir.getGroupId(), type, ir.getSessionId(), text,
-					ir.getMessage(), ir.getTimestamp(), ir.isRead(),
-					ir.getShareable().getId(), !ir.isAvailable(),
-					ir.canBeOpened());
-		}
-	}
-
-	static ConversationItem from(Context ctx, String contactName,
-			InvitationResponse ir) {
-		@StringRes int res;
-		if (ir.isLocal()) {
-			if (ir.wasAccepted()) {
-				if (ir instanceof ForumInvitationResponse) {
-					res = R.string.forum_invitation_response_accepted_sent;
-				} else if (ir instanceof BlogInvitationResponse) {
-					res = R.string.blogs_sharing_response_accepted_sent;
-				} else if (ir instanceof GroupInvitationResponse) {
-					res = R.string.groups_invitations_response_accepted_sent;
-				} else {
-					throw new IllegalArgumentException(
-							"Unknown InvitationResponse");
-				}
-			} else {
-				if (ir instanceof ForumInvitationResponse) {
-					res = R.string.forum_invitation_response_declined_sent;
-				} else if (ir instanceof BlogInvitationResponse) {
-					res = R.string.blogs_sharing_response_declined_sent;
-				} else if (ir instanceof GroupInvitationResponse) {
-					res = R.string.groups_invitations_response_declined_sent;
-				} else {
-					throw new IllegalArgumentException(
-							"Unknown InvitationResponse");
-				}
-			}
-			String text = ctx.getString(res, contactName);
-			return new ConversationNoticeOutItem(ir.getId(), ir.getGroupId(),
-					text, null, ir.getTimestamp(), ir.isSent(), ir.isSeen());
-		} else {
-			if (ir.wasAccepted()) {
-				if (ir instanceof ForumInvitationResponse) {
-					res = R.string.forum_invitation_response_accepted_received;
-				} else if (ir instanceof BlogInvitationResponse) {
-					res = R.string.blogs_sharing_response_accepted_received;
-				} else if (ir instanceof GroupInvitationResponse) {
-					res = R.string.groups_invitations_response_accepted_received;
-				} else {
-					throw new IllegalArgumentException(
-							"Unknown InvitationResponse");
-				}
-			} else {
-					if (ir instanceof ForumInvitationResponse) {
-						res = R.string.forum_invitation_response_declined_received;
-					} else if (ir instanceof BlogInvitationResponse) {
-						res = R.string.blogs_sharing_response_declined_received;
-					} else if (ir instanceof GroupInvitationResponse) {
-						res = R.string.groups_invitations_response_declined_received;
-					} else {
-						throw new IllegalArgumentException(
-								"Unknown InvitationResponse");
-					}
-			}
-			String text = ctx.getString(res, contactName);
-			return new ConversationNoticeInItem(ir.getId(), ir.getGroupId(),
-					text, null, ir.getTimestamp(), ir.isRead());
-		}
-	}
-
-	/**
-	 * This method should not be used to display the resulting ConversationItem
-	 * in the UI, but only to update list information based on the
-	 * BaseMessageHeader.
-	 **/
-	static ConversationItem from(Context ctx, BaseMessageHeader h) {
-		if (h instanceof PrivateMessageHeader) {
-			return from((PrivateMessageHeader) h);
-		} else if(h instanceof IntroductionRequest) {
-			return from(ctx, "", (IntroductionRequest) h);
-		} else if(h instanceof IntroductionResponse) {
-			return from(ctx, "", (IntroductionResponse) h);
-		} else if(h instanceof InvitationRequest) {
-			return from(ctx, "", (InvitationRequest) h);
-		} else if(h instanceof InvitationResponse) {
-			return from(ctx, "", (InvitationResponse) h);
-		} else {
-			throw new IllegalArgumentException("Unknown message header");
-		}
-	}
-
 }

briar-android/src/main/java/org/briarproject/briar/android/contact/ConversationNoticeInItem.java

@@ -6,6 +6,7 @@ import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.sync.GroupId;
 import org.briarproject.bramble.api.sync.MessageId;
 import org.briarproject.briar.R;
+import org.briarproject.briar.api.messaging.PrivateResponse;
 
 import javax.annotation.Nullable;
 import javax.annotation.concurrent.NotThreadSafe;
@@ -17,13 +18,17 @@ class ConversationNoticeInItem extends ConversationItem {
 	@Nullable
 	private final String msgText;
 
-	ConversationNoticeInItem(MessageId id, GroupId groupId,
-			String text, @Nullable String msgText, long time,
-			boolean read) {
+	ConversationNoticeInItem(MessageId id, GroupId groupId, String text,
+			@Nullable String msgText, long time, boolean read) {
 		super(id, groupId, text, time, read);
 		this.msgText = msgText;
 	}
 
+	ConversationNoticeInItem(String text, PrivateResponse r) {
+		super(r.getId(), r.getGroupId(), text, r.getTimestamp(), r.isRead());
+		this.msgText = null;
+	}
+
 	@Nullable
 	String getMsgText() {
 		return msgText;
@@ -39,5 +44,4 @@ class ConversationNoticeInItem extends ConversationItem {
 	public int getLayout() {
 		return R.layout.list_item_conversation_notice_in;
 	}
-
 }

briar-android/src/main/java/org/briarproject/briar/android/contact/ConversationNoticeOutItem.java

@@ -3,9 +3,9 @@ package org.briarproject.briar.android.contact;
 import android.support.annotation.LayoutRes;
 
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.sync.GroupId;
-import org.briarproject.bramble.api.sync.MessageId;
 import org.briarproject.briar.R;
+import org.briarproject.briar.api.messaging.PrivateRequest;
+import org.briarproject.briar.api.messaging.PrivateResponse;
 
 import javax.annotation.Nullable;
 import javax.annotation.concurrent.NotThreadSafe;
@@ -17,11 +17,16 @@ class ConversationNoticeOutItem extends ConversationOutItem {
 	@Nullable
 	private final String msgText;
 
-	ConversationNoticeOutItem(MessageId id, GroupId groupId,
-			String text, @Nullable String msgText, long time,
-			boolean sent, boolean seen) {
-		super(id, groupId, text, time, sent, seen);
-		this.msgText = msgText;
+	ConversationNoticeOutItem(String text, PrivateRequest r) {
+		super(r.getId(), r.getGroupId(), text, r.getTimestamp(), r.isSent(),
+				r.isSeen());
+		this.msgText = r.getMessage();
+	}
+
+	ConversationNoticeOutItem(String text, PrivateResponse r) {
+		super(r.getId(), r.getGroupId(), text, r.getTimestamp(), r.isSent(),
+				r.isSeen());
+		this.msgText = null;
 	}
 
 	@Nullable
@@ -34,5 +39,4 @@ class ConversationNoticeOutItem extends ConversationOutItem {
 	public int getLayout() {
 		return R.layout.list_item_conversation_notice_out;
 	}
-
 }

briar-android/src/main/java/org/briarproject/briar/android/contact/ConversationRequestItem.java

@@ -4,9 +4,11 @@ import android.support.annotation.LayoutRes;
 
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.sync.GroupId;
-import org.briarproject.bramble.api.sync.MessageId;
 import org.briarproject.briar.R;
 import org.briarproject.briar.api.client.SessionId;
+import org.briarproject.briar.api.messaging.PrivateRequest;
+import org.briarproject.briar.api.sharing.InvitationRequest;
+import org.briarproject.briar.api.sharing.Shareable;
 
 import javax.annotation.Nullable;
 import javax.annotation.concurrent.NotThreadSafe;
@@ -15,7 +17,7 @@ import javax.annotation.concurrent.NotThreadSafe;
 @NotNullByDefault
 class ConversationRequestItem extends ConversationNoticeInItem {
 
-	enum RequestType { INTRODUCTION, FORUM, BLOG, GROUP }
+	enum RequestType {INTRODUCTION, FORUM, BLOG, GROUP}
 
 	@Nullable
 	private final GroupId requestedGroupId;
@@ -24,17 +26,19 @@ class ConversationRequestItem extends ConversationNoticeInItem {
 	private final boolean canBeOpened;
 	private boolean answered;
 
-	ConversationRequestItem(MessageId id, GroupId groupId,
-			RequestType requestType, SessionId sessionId, String text,
-			@Nullable String msgText, long time, boolean read,
-			@Nullable GroupId requestedGroupId, boolean answered,
-			boolean canBeOpened) {
-		super(id, groupId, text, msgText, time, read);
-		this.requestType = requestType;
-		this.sessionId = sessionId;
-		this.requestedGroupId = requestedGroupId;
-		this.answered = answered;
-		this.canBeOpened = canBeOpened;
+	ConversationRequestItem(String text, RequestType type, PrivateRequest r) {
+		super(r.getId(), r.getGroupId(), text, r.getMessage(),
+				r.getTimestamp(), r.isRead());
+		this.requestType = type;
+		this.sessionId = r.getSessionId();
+		this.answered = r.wasAnswered();
+		if (r instanceof InvitationRequest) {
+			this.requestedGroupId = ((Shareable) r.getNameable()).getId();
+			this.canBeOpened = ((InvitationRequest) r).canBeOpened();
+		} else {
+			this.requestedGroupId = null;
+			this.canBeOpened = false;
+		}
 	}
 
 	RequestType getRequestType() {
@@ -54,8 +58,8 @@ class ConversationRequestItem extends ConversationNoticeInItem {
 		return answered;
 	}
 
-	void setAnswered(boolean answered) {
-		this.answered = answered;
+	void setAnswered() {
+		this.answered = true;
 	}
 
 	public boolean canBeOpened() {
@@ -67,5 +71,4 @@ class ConversationRequestItem extends ConversationNoticeInItem {
 	public int getLayout() {
 		return R.layout.list_item_conversation_request;
 	}
-
 }

briar-android/src/main/java/org/briarproject/briar/android/contact/ConversationVisitor.java

@@ -0,0 +1,246 @@
+package org.briarproject.briar.android.contact;
+
+import android.arch.lifecycle.LiveData;
+import android.content.Context;
+import android.support.annotation.UiThread;
+
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+import org.briarproject.bramble.api.sync.MessageId;
+import org.briarproject.briar.R;
+import org.briarproject.briar.api.blog.BlogInvitationRequest;
+import org.briarproject.briar.api.blog.BlogInvitationResponse;
+import org.briarproject.briar.api.forum.ForumInvitationRequest;
+import org.briarproject.briar.api.forum.ForumInvitationResponse;
+import org.briarproject.briar.api.introduction.IntroductionRequest;
+import org.briarproject.briar.api.introduction.IntroductionResponse;
+import org.briarproject.briar.api.messaging.PrivateMessageHeader;
+import org.briarproject.briar.api.messaging.PrivateMessageVisitor;
+import org.briarproject.briar.api.privategroup.invitation.GroupInvitationRequest;
+import org.briarproject.briar.api.privategroup.invitation.GroupInvitationResponse;
+
+import javax.annotation.Nullable;
+
+import static org.briarproject.briar.android.contact.ConversationRequestItem.RequestType.BLOG;
+import static org.briarproject.briar.android.contact.ConversationRequestItem.RequestType.FORUM;
+import static org.briarproject.briar.android.contact.ConversationRequestItem.RequestType.GROUP;
+import static org.briarproject.briar.android.contact.ConversationRequestItem.RequestType.INTRODUCTION;
+
+@UiThread
+@NotNullByDefault
+class ConversationVisitor implements PrivateMessageVisitor<ConversationItem> {
+
+	private final Context ctx;
+	private final BodyCache bodyCache;
+	private final LiveData<String> contactName;
+
+	ConversationVisitor(Context ctx, BodyCache bodyCache,
+			LiveData<String> contactName) {
+		this.ctx = ctx;
+		this.bodyCache = bodyCache;
+		this.contactName = contactName;
+	}
+
+	@Override
+	public ConversationItem visitPrivateMessageHeader(PrivateMessageHeader h) {
+		ConversationItem item;
+		if (h.isLocal()) item = new ConversationMessageOutItem(h);
+		else item = new ConversationMessageInItem(h);
+		String body = bodyCache.getBody(h.getId());
+		if (body != null) item.setBody(body);
+		return item;
+	}
+
+	@Override
+	public ConversationItem visitBlogInvitationRequest(
+			BlogInvitationRequest r) {
+		if (r.isLocal()) {
+			String text = ctx.getString(R.string.blogs_sharing_invitation_sent,
+					r.getName(), contactName.getValue());
+			return new ConversationNoticeOutItem(text, r);
+		} else {
+			String text = ctx.getString(
+					R.string.blogs_sharing_invitation_received,
+					contactName.getValue(), r.getName());
+			return new ConversationRequestItem(text, BLOG, r);
+		}
+	}
+
+	@Override
+	public ConversationItem visitBlogInvitationResponse(
+			BlogInvitationResponse r) {
+		if (r.isLocal()) {
+			String text;
+			if (r.wasAccepted()) {
+				text = ctx.getString(
+						R.string.blogs_sharing_response_accepted_sent,
+						contactName.getValue());
+			} else {
+				text = ctx.getString(
+						R.string.blogs_sharing_response_declined_sent,
+						contactName.getValue());
+			}
+			return new ConversationNoticeOutItem(text, r);
+		} else {
+			String text;
+			if (r.wasAccepted()) {
+				text = ctx.getString(
+						R.string.blogs_sharing_response_accepted_received,
+						contactName.getValue());
+			} else {
+				text = ctx.getString(
+						R.string.blogs_sharing_response_declined_received,
+						contactName.getValue());
+			}
+			return new ConversationNoticeInItem(text, r);
+		}
+	}
+
+	@Override
+	public ConversationItem visitForumInvitationRequest(
+			ForumInvitationRequest r) {
+		if (r.isLocal()) {
+			String text = ctx.getString(R.string.forum_invitation_sent,
+					r.getName(), contactName.getValue());
+			return new ConversationNoticeOutItem(text, r);
+		} else {
+			String text = ctx.getString(
+					R.string.forum_invitation_received,
+					contactName.getValue(), r.getName());
+			return new ConversationRequestItem(text, FORUM, r);
+		}
+	}
+
+	@Override
+	public ConversationItem visitForumInvitationResponse(
+			ForumInvitationResponse r) {
+		if (r.isLocal()) {
+			String text;
+			if (r.wasAccepted()) {
+				text = ctx.getString(
+						R.string.forum_invitation_response_accepted_sent,
+						contactName.getValue());
+			} else {
+				text = ctx.getString(
+						R.string.forum_invitation_response_declined_sent,
+						contactName.getValue());
+			}
+			return new ConversationNoticeOutItem(text, r);
+		} else {
+			String text;
+			if (r.wasAccepted()) {
+				text = ctx.getString(
+						R.string.forum_invitation_response_accepted_received,
+						contactName.getValue());
+			} else {
+				text = ctx.getString(
+						R.string.forum_invitation_response_declined_received,
+						contactName.getValue());
+			}
+			return new ConversationNoticeInItem(text, r);
+		}
+	}
+
+	@Override
+	public ConversationItem visitGroupInvitationRequest(
+			GroupInvitationRequest r) {
+		if (r.isLocal()) {
+			String text = ctx.getString(
+					R.string.groups_invitations_invitation_sent,
+					contactName.getValue(), r.getName());
+			return new ConversationNoticeOutItem(text, r);
+		} else {
+			String text = ctx.getString(
+					R.string.groups_invitations_invitation_received,
+					contactName.getValue(), r.getName());
+			return new ConversationRequestItem(text, GROUP, r);
+		}
+	}
+
+	@Override
+	public ConversationItem visitGroupInvitationResponse(
+			GroupInvitationResponse r) {
+		if (r.isLocal()) {
+			String text;
+			if (r.wasAccepted()) {
+				text = ctx.getString(
+						R.string.groups_invitations_response_accepted_sent,
+						contactName.getValue());
+			} else {
+				text = ctx.getString(
+						R.string.groups_invitations_response_declined_sent,
+						contactName.getValue());
+			}
+			return new ConversationNoticeOutItem(text, r);
+		} else {
+			String text;
+			if (r.wasAccepted()) {
+				text = ctx.getString(
+						R.string.groups_invitations_response_accepted_received,
+						contactName.getValue());
+			} else {
+				text = ctx.getString(
+						R.string.groups_invitations_response_declined_received,
+						contactName.getValue());
+			}
+			return new ConversationNoticeInItem(text, r);
+		}
+	}
+
+	@Override
+	public ConversationItem visitIntroductionRequest(IntroductionRequest r) {
+		if (r.isLocal()) {
+			String text = ctx.getString(R.string.introduction_request_sent,
+					contactName.getValue(), r.getName());
+			return new ConversationNoticeOutItem(text, r);
+		} else {
+			String text = ctx.getString(R.string.introduction_request_received,
+					contactName.getValue(), r.getName());
+			return new ConversationRequestItem(text, INTRODUCTION, r);
+		}
+	}
+
+	@Override
+	public ConversationItem visitIntroductionResponse(IntroductionResponse r) {
+		if (r.isLocal()) {
+			String text;
+			if (r.wasAccepted()) {
+				String introducee = r.getIntroducedAuthor().getName();
+				text = ctx.getString(
+						R.string.introduction_response_accepted_sent,
+						introducee)
+						+ "\n\n" + ctx.getString(
+						R.string.introduction_response_accepted_sent_info,
+						introducee);
+			} else {
+				text = ctx.getString(
+						R.string.introduction_response_declined_sent,
+						r.getIntroducedAuthor().getName());
+			}
+			return new ConversationNoticeOutItem(text, r);
+		} else {
+			String text;
+			if (r.wasAccepted()) {
+				text = ctx.getString(
+						R.string.introduction_response_accepted_received,
+						contactName.getValue(),
+						r.getIntroducedAuthor().getName());
+			} else if (r.isIntroducer()) {
+				text = ctx.getString(
+						R.string.introduction_response_declined_received,
+						contactName.getValue(),
+						r.getIntroducedAuthor().getName());
+			} else {
+				text = ctx.getString(
+						R.string.introduction_response_declined_received_by_introducee,
+						contactName.getValue(),
+						r.getIntroducedAuthor().getName());
+			}
+			return new ConversationNoticeInItem(text, r);
+		}
+	}
+
+	interface BodyCache {
+		@Nullable
+		String getBody(MessageId m);
+	}
+}

briar-android/src/main/java/org/briarproject/briar/android/contact/PendingRequestsActivity.java

@@ -0,0 +1,122 @@
+package org.briarproject.briar.android.contact;
+
+import android.os.Bundle;
+import android.support.v7.app.ActionBar;
+import android.support.v7.widget.LinearLayoutManager;
+import android.view.MenuItem;
+
+import org.briarproject.bramble.api.contact.Contact;
+import org.briarproject.bramble.api.contact.ContactManager;
+import org.briarproject.bramble.api.contact.event.ContactAddedEvent;
+import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.bramble.api.event.Event;
+import org.briarproject.bramble.api.event.EventBus;
+import org.briarproject.bramble.api.event.EventListener;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.activity.BriarActivity;
+import org.briarproject.briar.android.view.BriarRecyclerView;
+import org.briarproject.briar.api.messaging.MessagingManager;
+import org.briarproject.briar.api.messaging.MessagingManager.PendingContact;
+
+import java.util.Collection;
+
+import javax.annotation.Nullable;
+import javax.inject.Inject;
+
+public class PendingRequestsActivity extends BriarActivity
+		implements EventListener {
+
+	@Inject
+	MessagingManager messagingManager;
+	@Inject
+	ContactManager contactManager;
+	@Inject
+	EventBus eventBus;
+
+	private PendingRequestsAdapter adapter;
+	private BriarRecyclerView list;
+
+	@Override
+	public void injectActivity(ActivityComponent component) {
+		component.inject(this);
+	}
+
+	@Override
+	public void onCreate(@Nullable Bundle state) {
+		super.onCreate(state);
+
+		setContentView(R.layout.list);
+
+		ActionBar ab = getSupportActionBar();
+		if (ab != null) {
+			ab.setDisplayHomeAsUpEnabled(true);
+		}
+
+		adapter = new PendingRequestsAdapter(this, PendingContact.class);
+		list = findViewById(R.id.list);
+		list.setLayoutManager(new LinearLayoutManager(this));
+		list.setAdapter(adapter);
+	}
+
+	@Override
+	public void onStart() {
+		super.onStart();
+		eventBus.addListener(this);
+		runOnDbThread(() -> {
+			try {
+				Collection<PendingContact> contacts =
+						messagingManager.getPendingContacts();
+				addPendingContacts(contacts);
+			} catch (DbException e) {
+				e.printStackTrace();
+			}
+		});
+	}
+
+	@Override
+	protected void onStop() {
+		super.onStop();
+		adapter.clear();
+	}
+
+	@Override
+	public boolean onOptionsItemSelected(MenuItem item) {
+		switch (item.getItemId()) {
+			case android.R.id.home:
+				onBackPressed();
+				return true;
+			default:
+				return super.onOptionsItemSelected(item);
+		}
+	}
+
+	@Override
+	public void eventOccurred(Event e) {
+		if (e instanceof ContactAddedEvent) {
+			runOnDbThread(() -> {
+				try {
+					Contact contact = contactManager
+							.getContact(((ContactAddedEvent) e).getContactId());
+					runOnUiThreadUnlessDestroyed(() -> {
+						adapter.remove(contact);
+						if (adapter.isEmpty()) finish();
+					});
+				} catch (DbException e1) {
+					e1.printStackTrace();
+				}
+			});
+		}
+	}
+
+	private void addPendingContacts(Collection<PendingContact> contacts) {
+		runOnUiThreadUnlessDestroyed(() -> {
+			if (contacts.isEmpty()) {
+				list.showData();
+			} else {
+				adapter.addAll(contacts);
+			}
+		});
+	}
+
+}

briar-android/src/main/java/org/briarproject/briar/android/contact/PendingRequestsAdapter.java

@@ -0,0 +1,67 @@
+package org.briarproject.briar.android.contact;
+
+import android.content.Context;
+import android.support.annotation.NonNull;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import org.briarproject.bramble.api.contact.Contact;
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.util.BriarAdapter;
+import org.briarproject.briar.api.messaging.MessagingManager.PendingContact;
+
+@NotNullByDefault
+public class PendingRequestsAdapter extends
+		BriarAdapter<PendingContact, PendingRequestsViewHolder> {
+
+	public PendingRequestsAdapter(Context ctx, Class<PendingContact> c) {
+		super(ctx, c);
+	}
+
+	@NonNull
+	@Override
+	public PendingRequestsViewHolder onCreateViewHolder(
+			ViewGroup viewGroup, int i) {
+		View v = LayoutInflater.from(viewGroup.getContext()).inflate(
+				R.layout.list_item_pending_contact, viewGroup, false);
+		return new PendingRequestsViewHolder(v);
+	}
+
+	@Override
+	public void onBindViewHolder(
+			PendingRequestsViewHolder pendingRequestsViewHolder, int i) {
+		pendingRequestsViewHolder.bind(items.get(i));
+	}
+
+	@Override
+	public int compare(PendingContact item1, PendingContact item2) {
+		return (int) (item1.getTimestamp() - item2.getTimestamp());
+	}
+
+	@Override
+	public boolean areContentsTheSame(PendingContact item1,
+			PendingContact item2) {
+		return item1.getName().equals(item2.getName()) &&
+				item1.getTimestamp() == item2.getTimestamp();
+	}
+
+	@Override
+	public boolean areItemsTheSame(PendingContact item1,
+			PendingContact item2) {
+		return item1.getName().equals(item2.getName()) &&
+				item1.getTimestamp() == item2.getTimestamp();
+	}
+
+	// TODO remove
+	public void remove(Contact contact) {
+		for (int i = 0; i < items.size(); i++) {
+			if (items.get(i).getName().equals(contact.getAuthor().getName())) {
+				items.removeItemAt(i);
+				return;
+			}
+		}
+	}
+
+}

briar-android/src/main/java/org/briarproject/briar/android/contact/PendingRequestsViewHolder.java

@@ -0,0 +1,36 @@
+package org.briarproject.briar.android.contact;
+
+import android.support.v7.widget.RecyclerView.ViewHolder;
+import android.view.View;
+import android.widget.TextView;
+
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.view.TextAvatarView;
+import org.briarproject.briar.api.messaging.MessagingManager.PendingContact;
+
+import static org.briarproject.bramble.util.StringUtils.toUtf8;
+import static org.briarproject.briar.android.util.UiUtils.formatDate;
+
+@NotNullByDefault
+public class PendingRequestsViewHolder extends ViewHolder {
+
+	private final TextAvatarView avatar;
+	private final TextView name;
+	private final TextView time;
+
+	public PendingRequestsViewHolder(View v) {
+		super(v);
+		avatar = v.findViewById(R.id.avatar);
+		name = v.findViewById(R.id.name);
+		time = v.findViewById(R.id.time);
+	}
+
+	public void bind(PendingContact item) {
+		avatar.setText(item.getName());
+		avatar.setBackgroundBytes(toUtf8(item.getName() + item.getTimestamp()));
+		name.setText(item.getName());
+		time.setText(formatDate(time.getContext(), item.getTimestamp()));
+	}
+
+}

briar-android/src/main/java/org/briarproject/briar/android/forum/ForumControllerImpl.java

@@ -84,11 +84,10 @@ class ForumControllerImpl extends
 		} else if (e instanceof ForumInvitationResponseReceivedEvent) {
 			ForumInvitationResponseReceivedEvent f =
 					(ForumInvitationResponseReceivedEvent) e;
-			ForumInvitationResponse r =
-					(ForumInvitationResponse) f.getResponse();
+			ForumInvitationResponse r = f.getMessageHeader();
 			if (r.getShareableId().equals(getGroupId()) && r.wasAccepted()) {
 				LOG.info("Forum invitation was accepted");
-				onForumInvitationAccepted(r.getContactId());
+				onForumInvitationAccepted(f.getContactId());
 			}
 		} else if (e instanceof ContactLeftShareableEvent) {
 			ContactLeftShareableEvent c = (ContactLeftShareableEvent) e;

briar-android/src/main/java/org/briarproject/briar/android/introduction/IntroductionMessageFragment.java

@@ -2,6 +2,7 @@ package org.briarproject.briar.android.introduction;
 
 import android.content.Context;
 import android.os.Bundle;
+import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.v7.app.ActionBar;
 import android.view.LayoutInflater;
@@ -82,8 +83,8 @@ public class IntroductionMessageFragment extends BaseFragment
 	}
 
 	@Override
-	public View onCreateView(LayoutInflater inflater, ViewGroup container,
-			Bundle savedInstanceState) {
+	public View onCreateView(@NonNull LayoutInflater inflater,
+			ViewGroup container, Bundle savedInstanceState) {
 
 		// change toolbar text
 		ActionBar actionBar = introductionActivity.getSupportActionBar();
@@ -182,7 +183,7 @@ public class IntroductionMessageFragment extends BaseFragment
 	}
 
 	@Override
-	public void onSendClick(String text) {
+	public void onSendClick(@NonNull String text) {
 		// disable button to prevent accidental double invitations
 		ui.message.setSendButtonEnabled(false);
 

briar-android/src/main/java/org/briarproject/briar/android/keyagreement/CameraException.java

@@ -2,7 +2,7 @@ package org.briarproject.briar.android.keyagreement;
 
 import java.io.IOException;
 
-class CameraException extends IOException {
+public class CameraException extends IOException {
 
 	CameraException(String message) {
 		super(message);

briar-android/src/main/java/org/briarproject/briar/android/keyagreement/KeyAgreementFragment.java

@@ -15,7 +15,6 @@ import android.widget.Toast;
 
 import com.google.zxing.Result;
 
-import org.briarproject.bramble.api.UnsupportedVersionException;
 import org.briarproject.bramble.api.event.Event;
 import org.briarproject.bramble.api.event.EventBus;
 import org.briarproject.bramble.api.keyagreement.KeyAgreementResult;
@@ -23,6 +22,7 @@ import org.briarproject.bramble.api.keyagreement.KeyAgreementTask;
 import org.briarproject.bramble.api.keyagreement.Payload;
 import org.briarproject.bramble.api.keyagreement.PayloadEncoder;
 import org.briarproject.bramble.api.keyagreement.PayloadParser;
+import org.briarproject.bramble.api.keyagreement.UnsupportedVersionException;
 import org.briarproject.bramble.api.keyagreement.event.KeyAgreementAbortedEvent;
 import org.briarproject.bramble.api.keyagreement.event.KeyAgreementFailedEvent;
 import org.briarproject.bramble.api.keyagreement.event.KeyAgreementFinishedEvent;
@@ -244,8 +244,14 @@ public class KeyAgreementFragment extends BaseEventFragment
 			task.connectAndRunProtocol(remotePayload);
 		} catch (UnsupportedVersionException e) {
 			reset();
-			String msg = getString(R.string.qr_code_unsupported,
-					getString(R.string.app_name));
+			String msg;
+			if (e.isTooOld()) {
+				msg = getString(R.string.qr_code_too_old,
+						getString(R.string.app_name));
+			} else {
+				msg = getString(R.string.qr_code_too_new,
+						getString(R.string.app_name));
+			}
 			showNextFragment(ContactExchangeErrorFragment.newInstance(msg));
 		} catch (CameraException e) {
 			logCameraExceptionAndFinish(e);

briar-android/src/main/java/org/briarproject/briar/android/keyagreement/PreviewConsumer.java

@@ -7,7 +7,7 @@ import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
 @SuppressWarnings("deprecation")
 @NotNullByDefault
-interface PreviewConsumer {
+public interface PreviewConsumer {
 
 	@UiThread
 	void start(Camera camera, int cameraIndex);

briar-android/src/main/java/org/briarproject/briar/android/keyagreement/QrCodeDecoder.java

@@ -29,7 +29,7 @@ import static java.util.logging.Level.WARNING;
 @SuppressWarnings("deprecation")
 @MethodsNotNullByDefault
 @ParametersNotNullByDefault
-class QrCodeDecoder implements PreviewConsumer, PreviewCallback {
+public class QrCodeDecoder implements PreviewConsumer, PreviewCallback {
 
 	private static final Logger LOG =
 			Logger.getLogger(QrCodeDecoder.class.getName());
@@ -40,7 +40,7 @@ class QrCodeDecoder implements PreviewConsumer, PreviewCallback {
 	private Camera camera = null;
 	private int cameraIndex = 0;
 
-	QrCodeDecoder(ResultCallback callback) {
+	public QrCodeDecoder(ResultCallback callback) {
 		this.callback = callback;
 	}
 
@@ -141,7 +141,7 @@ class QrCodeDecoder implements PreviewConsumer, PreviewCallback {
 	}
 
 	@NotNullByDefault
-	interface ResultCallback {
+	public interface ResultCallback {
 
 		void handleResult(Result result);
 	}

briar-android/src/main/java/org/briarproject/briar/android/keyagreement/QrCodeUtils.java

@@ -21,13 +21,13 @@ import static java.util.logging.Level.WARNING;
 import static org.briarproject.bramble.util.LogUtils.logException;
 
 @NotNullByDefault
-class QrCodeUtils {
+public class QrCodeUtils {
 
 	private static final Logger LOG =
 			Logger.getLogger(QrCodeUtils.class.getName());
 
 	@Nullable
-	static Bitmap createQrCode(DisplayMetrics dm, String input) {
+	public static Bitmap createQrCode(DisplayMetrics dm, String input) {
 		int smallestDimen = Math.min(dm.widthPixels, dm.heightPixels);
 		try {
 			// Generate QR code

briar-android/src/main/java/org/briarproject/briar/android/login/StrengthMeter.java

@@ -7,6 +7,7 @@ import android.graphics.drawable.ClipDrawable;
 import android.graphics.drawable.Drawable;
 import android.graphics.drawable.LayerDrawable;
 import android.graphics.drawable.ShapeDrawable;
+import android.support.annotation.Nullable;
 import android.util.AttributeSet;
 import android.widget.ProgressBar;
 
@@ -15,6 +16,7 @@ import static android.graphics.Paint.Style.FILL;
 import static android.graphics.Paint.Style.STROKE;
 import static android.graphics.drawable.ClipDrawable.HORIZONTAL;
 import static android.view.Gravity.LEFT;
+import static android.view.Gravity.START;
 import static org.briarproject.bramble.api.crypto.PasswordStrengthEstimator.QUITE_STRONG;
 import static org.briarproject.bramble.api.crypto.PasswordStrengthEstimator.QUITE_WEAK;
 import static org.briarproject.bramble.api.crypto.PasswordStrengthEstimator.STRONG;
@@ -35,11 +37,11 @@ public class StrengthMeter extends ProgressBar {
 		this(context, null);
 	}
 
-	public StrengthMeter(Context context, AttributeSet attrs) {
+	public StrengthMeter(Context context, @Nullable AttributeSet attrs) {
 		super(context, attrs, android.R.attr.progressBarStyleHorizontal);
 		bar = new ShapeDrawable();
 		bar.getPaint().setColor(RED);
-		ClipDrawable clip = new ClipDrawable(bar, LEFT, HORIZONTAL);
+		ClipDrawable clip = new ClipDrawable(bar, LEFT & START, HORIZONTAL);
 		ShapeDrawable background = new ShapeDrawable();
 		Paint p = background.getPaint();
 		p.setStyle(FILL);
@@ -50,6 +52,7 @@ public class StrengthMeter extends ProgressBar {
 		Drawable[] layers = new Drawable[] { clip, background };
 		setProgressDrawable(new LayerDrawable(layers));
 		setIndeterminate(false);
+		if (isInEditMode()) setStrength(STRONG);
 	}
 
 	@Override

briar-android/src/main/java/org/briarproject/briar/android/privategroup/conversation/GroupControllerImpl.java

@@ -99,11 +99,10 @@ class GroupControllerImpl extends
 		} else if (e instanceof GroupInvitationResponseReceivedEvent) {
 			GroupInvitationResponseReceivedEvent g =
 					(GroupInvitationResponseReceivedEvent) e;
-			GroupInvitationResponse r =
-					(GroupInvitationResponse) g.getResponse();
+			GroupInvitationResponse r = g.getMessageHeader();
 			if (getGroupId().equals(r.getShareableId()) && r.wasAccepted()) {
 				listener.runOnUiThreadUnlessDestroyed(
-						() -> listener.onInvitationAccepted(r.getContactId()));
+						() -> listener.onInvitationAccepted(g.getContactId()));
 			}
 		} else if (e instanceof GroupDissolvedEvent) {
 			GroupDissolvedEvent g = (GroupDissolvedEvent) e;

briar-android/src/main/java/org/briarproject/briar/android/reporting/DevReportActivity.java

@@ -292,8 +292,7 @@ public class DevReportActivity extends BaseCrashReportDialog
 						cb.setChecked(required || !excluded);
 						cb.setEnabled(!required);
 						cb.setOnCheckedChangeListener(DevReportActivity.this);
-						TextView title = v.findViewById(R.id.title);
-						title.setText(field.toString());
+						cb.setText(field.toString());
 						TextView content = v.findViewById(R.id.content);
 						content.setText(value);
 						report.addView(v);

briar-android/src/main/java/org/briarproject/briar/android/settings/SettingsFragment.java

@@ -89,7 +89,6 @@ import static org.briarproject.briar.api.android.AndroidNotificationManager.GROU
 import static org.briarproject.briar.api.android.AndroidNotificationManager.PREF_NOTIFY_BLOG;
 import static org.briarproject.briar.api.android.AndroidNotificationManager.PREF_NOTIFY_FORUM;
 import static org.briarproject.briar.api.android.AndroidNotificationManager.PREF_NOTIFY_GROUP;
-import static org.briarproject.briar.api.android.AndroidNotificationManager.PREF_NOTIFY_LOCK_SCREEN;
 import static org.briarproject.briar.api.android.AndroidNotificationManager.PREF_NOTIFY_PRIVATE;
 import static org.briarproject.briar.api.android.AndroidNotificationManager.PREF_NOTIFY_RINGTONE_NAME;
 import static org.briarproject.briar.api.android.AndroidNotificationManager.PREF_NOTIFY_RINGTONE_URI;
@@ -127,7 +126,6 @@ public class SettingsFragment extends PreferenceFragmentCompat
 	private SwitchPreference notifyForumPosts;
 	private SwitchPreference notifyBlogPosts;
 	private SwitchPreference notifyVibration;
-	private SwitchPreference notifyLockscreen;
 
 	private Preference notifySound;
 
@@ -179,8 +177,6 @@ public class SettingsFragment extends PreferenceFragmentCompat
 				"pref_key_notify_blog_posts");
 		notifyVibration = (SwitchPreference) findPreference(
 				"pref_key_notify_vibration");
-		notifyLockscreen = (SwitchPreference) findPreference(
-				"pref_key_notify_lock_screen");
 		notifySound = findPreference("pref_key_notify_sound");
 
 		language.setOnPreferenceChangeListener(this);
@@ -207,10 +203,6 @@ public class SettingsFragment extends PreferenceFragmentCompat
 		torMobile.setOnPreferenceChangeListener(this);
 		screenLock.setOnPreferenceChangeListener(this);
 		screenLockTimeout.setOnPreferenceChangeListener(this);
-		if (SDK_INT >= 21) {
-			notifyLockscreen.setVisible(true);
-			notifyLockscreen.setOnPreferenceChangeListener(this);
-		}
 
 		findPreference("pref_key_send_feedback").setOnPreferenceClickListener(
 				preference -> {
@@ -380,8 +372,6 @@ public class SettingsFragment extends PreferenceFragmentCompat
 				notifyForumPosts.setOnPreferenceChangeListener(this);
 				notifyBlogPosts.setOnPreferenceChangeListener(this);
 				notifyVibration.setOnPreferenceChangeListener(this);
-				notifyLockscreen.setChecked(settings.getBoolean(
-						PREF_NOTIFY_LOCK_SCREEN, false));
 				notifySound.setOnPreferenceClickListener(
 						pref -> onNotificationSoundClicked());
 				String text;
@@ -409,7 +399,6 @@ public class SettingsFragment extends PreferenceFragmentCompat
 				setupNotificationPreference(notifyBlogPosts, BLOG_CHANNEL_ID,
 						R.string.notify_blog_posts_setting_summary_26);
 				notifyVibration.setVisible(false);
-				notifyLockscreen.setVisible(false);
 				notifySound.setVisible(false);
 			}
 			setSettingsEnabled(true);
@@ -432,7 +421,6 @@ public class SettingsFragment extends PreferenceFragmentCompat
 		notifyForumPosts.setEnabled(enabled);
 		notifyBlogPosts.setEnabled(enabled);
 		notifyVibration.setEnabled(enabled);
-		notifyLockscreen.setEnabled(enabled);
 		notifySound.setEnabled(enabled);
 	}
 
@@ -553,10 +541,6 @@ public class SettingsFragment extends PreferenceFragmentCompat
 			Settings s = new Settings();
 			s.putBoolean(PREF_NOTIFY_VIBRATION, (Boolean) newValue);
 			storeSettings(s);
-		} else if (preference == notifyLockscreen) {
-			Settings s = new Settings();
-			s.putBoolean(PREF_NOTIFY_LOCK_SCREEN, (Boolean) newValue);
-			storeSettings(s);
 		}
 		return true;
 	}

briar-android/src/main/java/org/briarproject/briar/android/sharing/InvitationAdapter.java

@@ -1,6 +1,7 @@
 package org.briarproject.briar.android.sharing;
 
 import android.content.Context;
+import android.support.annotation.NonNull;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -26,7 +27,7 @@ public abstract class InvitationAdapter<I extends InvitationItem, VH extends Inv
 	}
 
 	@Override
-	public void onBindViewHolder(VH ui, int position) {
+	public void onBindViewHolder(@NonNull VH ui, int position) {
 		I item = getItemAt(position);
 		if (item == null) return;
 		ui.onBind(item, listener);

briar-android/src/main/java/org/briarproject/briar/android/threaded/ThreadItemAdapter.java

@@ -1,5 +1,6 @@
 package org.briarproject.briar.android.threaded;
 
+import android.support.annotation.NonNull;
 import android.support.annotation.UiThread;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
@@ -36,8 +37,9 @@ public class ThreadItemAdapter<I extends ThreadItem>
 		this.layoutManager = layoutManager;
 	}
 
+	@NonNull
 	@Override
-	public BaseThreadItemViewHolder<I> onCreateViewHolder(
+	public BaseThreadItemViewHolder<I> onCreateViewHolder(@NonNull
 			ViewGroup parent, int viewType) {
 		View v = LayoutInflater.from(parent.getContext())
 				.inflate(R.layout.list_item_thread, parent, false);
@@ -45,7 +47,8 @@ public class ThreadItemAdapter<I extends ThreadItem>
 	}
 
 	@Override
-	public void onBindViewHolder(BaseThreadItemViewHolder<I> ui, int position) {
+	public void onBindViewHolder(@NonNull BaseThreadItemViewHolder<I> ui,
+			int position) {
 		I item = items.get(position);
 		ui.bind(item, listener);
 	}

briar-android/src/main/java/org/briarproject/briar/android/util/BriarNotificationBuilder.java

@@ -1,15 +1,14 @@
 package org.briarproject.briar.android.util;
 
 import android.content.Context;
-import android.os.Build;
 import android.support.annotation.ColorRes;
 import android.support.v4.app.NotificationCompat;
 import android.support.v4.content.ContextCompat;
 
 import org.briarproject.briar.R;
 
+import static android.os.Build.VERSION.SDK_INT;
 import static android.support.v4.app.NotificationCompat.VISIBILITY_PRIVATE;
-import static android.support.v4.app.NotificationCompat.VISIBILITY_SECRET;
 
 
 public class BriarNotificationBuilder extends NotificationCompat.Builder {
@@ -22,6 +21,7 @@ public class BriarNotificationBuilder extends NotificationCompat.Builder {
 
 		setLights(ContextCompat.getColor(context, R.color.briar_green_light),
 				750, 500);
+		if (SDK_INT >= 21) setVisibility(VISIBILITY_PRIVATE);
 	}
 
 	public BriarNotificationBuilder setColorRes(@ColorRes int res) {
@@ -29,13 +29,8 @@ public class BriarNotificationBuilder extends NotificationCompat.Builder {
 		return this;
 	}
 
-	public BriarNotificationBuilder setLockscreenVisibility(String category,
-			boolean show) {
-		if (Build.VERSION.SDK_INT >= 21) {
-			setCategory(category);
-			if (show) setVisibility(VISIBILITY_PRIVATE);
-			else setVisibility(VISIBILITY_SECRET);
-		}
+	public BriarNotificationBuilder setNotificationCategory(String category) {
+		if (SDK_INT >= 21) setCategory(category);
 		return this;
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/util/UiUtils.java

@@ -61,7 +61,6 @@ import static android.text.format.DateUtils.FORMAT_SHOW_DATE;
 import static android.text.format.DateUtils.MINUTE_IN_MILLIS;
 import static android.text.format.DateUtils.WEEK_IN_MILLIS;
 import static android.view.KeyEvent.ACTION_DOWN;
-import static android.view.KeyEvent.ACTION_UP;
 import static android.view.KeyEvent.KEYCODE_ENTER;
 import static android.view.inputmethod.EditorInfo.IME_NULL;
 import static org.briarproject.briar.BuildConfig.APPLICATION_ID;
@@ -157,7 +156,7 @@ public class UiUtils {
 
 	/**
 	 * Executes the runnable when clicking the link in the textView's text.
-	 *
+	 * <p>
 	 * Attention: This assumes that there's only <b>one</b> link in the text.
 	 */
 	public static void onSingleLinkClick(TextView textView, Runnable runnable) {

briar-android/src/main/java/org/briarproject/briar/android/view/AuthorView.java

@@ -5,11 +5,10 @@ import android.content.res.TypedArray;
 import android.graphics.Typeface;
 import android.support.annotation.DimenRes;
 import android.support.annotation.UiThread;
+import android.support.constraint.ConstraintLayout;
 import android.util.AttributeSet;
 import android.view.LayoutInflater;
-import android.view.View;
 import android.widget.ImageView;
-import android.widget.RelativeLayout;
 import android.widget.TextView;
 
 import org.briarproject.bramble.api.identity.Author;
@@ -30,7 +29,7 @@ import static org.briarproject.bramble.api.identity.Author.Status.OURSELVES;
 import static org.briarproject.briar.android.util.UiUtils.resolveAttribute;
 
 @UiThread
-public class AuthorView extends RelativeLayout {
+public class AuthorView extends ConstraintLayout {
 
 	public static final int NORMAL = 0;
 	public static final int REBLOGGER = 1;
@@ -133,32 +132,24 @@ public class AuthorView extends RelativeLayout {
 				date.setVisibility(VISIBLE);
 				setAvatarSize(R.dimen.blogs_avatar_normal_size);
 				setTextSize(authorName, R.dimen.text_size_small);
-				setCenterVertical(authorName, false);
-				setCenterVertical(trustIndicator, false);
 				break;
 			case REBLOGGER:
 				avatarIcon.setVisibility(VISIBLE);
 				date.setVisibility(VISIBLE);
 				setAvatarSize(R.dimen.blogs_avatar_normal_size);
 				setTextSize(authorName, R.dimen.text_size_small);
-				setCenterVertical(authorName, false);
-				setCenterVertical(trustIndicator, false);
 				break;
 			case COMMENTER:
 				avatarIcon.setVisibility(INVISIBLE);
 				date.setVisibility(VISIBLE);
 				setAvatarSize(R.dimen.blogs_avatar_comment_size);
 				setTextSize(authorName, R.dimen.text_size_tiny);
-				setCenterVertical(authorName, false);
-				setCenterVertical(trustIndicator, false);
 				break;
 			case LIST:
 				avatarIcon.setVisibility(INVISIBLE);
 				date.setVisibility(GONE);
 				setAvatarSize(R.dimen.listitem_picture_size_small);
 				setTextSize(authorName, R.dimen.text_size_medium);
-				setCenterVertical(authorName, true);
-				setCenterVertical(trustIndicator, true);
 				break;
 			case RSS_FEED:
 				avatarIcon.setVisibility(INVISIBLE);
@@ -166,8 +157,6 @@ public class AuthorView extends RelativeLayout {
 				avatar.setImageResource(R.drawable.ic_rss_feed);
 				setAvatarSize(R.dimen.blogs_avatar_normal_size);
 				setTextSize(authorName, R.dimen.text_size_small);
-				setCenterVertical(authorName, false);
-				setCenterVertical(trustIndicator, false);
 				break;
 			case RSS_FEED_REBLOGGED:
 				avatarIcon.setVisibility(INVISIBLE);
@@ -175,8 +164,6 @@ public class AuthorView extends RelativeLayout {
 				avatar.setImageResource(R.drawable.ic_rss_feed);
 				setAvatarSize(R.dimen.blogs_avatar_comment_size);
 				setTextSize(authorName, R.dimen.text_size_tiny);
-				setCenterVertical(authorName, false);
-				setCenterVertical(trustIndicator, false);
 				break;
 		}
 	}
@@ -194,10 +181,4 @@ public class AuthorView extends RelativeLayout {
 		v.setTextSize(COMPLEX_UNIT_PX, textSize);
 	}
 
-	private void setCenterVertical(View v, boolean center) {
-		LayoutParams params = (LayoutParams) v.getLayoutParams();
-		params.addRule(CENTER_VERTICAL, center ? RelativeLayout.TRUE : 0);
-		v.setLayoutParams(params);
-	}
-
 }

briar-android/src/main/java/org/briarproject/briar/android/view/QrCodeView.java

@@ -19,8 +19,7 @@ public class QrCodeView extends FrameLayout {
     private boolean fullscreen = false;
     private FullscreenListener listener;
 
-    public QrCodeView(@NonNull Context context,
-                      @Nullable AttributeSet attrs) {
+    public QrCodeView(@NonNull Context context, @Nullable AttributeSet attrs) {
         super(context, attrs);
         LayoutInflater inflater = (LayoutInflater) context
                 .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
@@ -40,6 +39,9 @@ public class QrCodeView extends FrameLayout {
                         listener.setFullscreen(fullscreen);
                 }
         );
+
+        // TODO remove
+        fullscreenButton.setVisibility(INVISIBLE);
     }
 
     @UiThread

briar-android/src/main/java/org/briarproject/briar/android/view/TextAvatarView.java

@@ -3,7 +3,6 @@ package org.briarproject.briar.android.view;
 import android.content.Context;
 import android.graphics.Color;
 import android.graphics.drawable.ColorDrawable;
-import android.graphics.drawable.Drawable;
 import android.support.annotation.UiThread;
 import android.support.v7.widget.AppCompatTextView;
 import android.util.AttributeSet;
@@ -11,13 +10,11 @@ import android.view.LayoutInflater;
 import android.widget.FrameLayout;
 import android.widget.TextView;
 
-import org.briarproject.bramble.api.identity.Author;
 import org.briarproject.briar.R;
 
 import javax.annotation.Nullable;
 
 import de.hdodenhof.circleimageview.CircleImageView;
-import im.delight.android.identicons.IdenticonDrawable;
 
 @UiThread
 public class TextAvatarView extends FrameLayout {
@@ -35,7 +32,6 @@ public class TextAvatarView extends FrameLayout {
 		character = findViewById(R.id.textAvatarView);
 		background = findViewById(R.id.avatarBackground);
 		badge = findViewById(R.id.unreadCountView);
-		badge.setVisibility(INVISIBLE);
 	}
 
 	public TextAvatarView(Context context) {
@@ -72,10 +68,4 @@ public class TextAvatarView extends FrameLayout {
 		}
 	}
 
-	public void setAuthorAvatar(Author author) {
-		Drawable drawable = new IdenticonDrawable(author.getId().getBytes());
-		background.setImageDrawable(drawable);
-		character.setVisibility(GONE);
-	}
-
 }

briar-android/src/main/java/org/briarproject/briar/android/view/TextInputView.java

@@ -61,9 +61,11 @@ public class TextInputView extends KeyboardAwareLinearLayout {
 	public TextInputView(Context context, @Nullable AttributeSet attrs,
 			int defStyleAttr) {
 		super(context, attrs, defStyleAttr);
-		BriarApplication app =
-				(BriarApplication) context.getApplicationContext();
-		app.getApplicationComponent().inject(this);
+		if (!isInEditMode()) {
+			BriarApplication app =
+					(BriarApplication) context.getApplicationContext();
+			app.getApplicationComponent().inject(this);
+		}
 		setOrientation(VERTICAL);
 		setLayoutTransition(new LayoutTransition());
 		inflateLayout(context);

briar-android/src/main/java/org/briarproject/briar/android/view/UnreadMessageButton.java

@@ -49,7 +49,7 @@ public class UnreadMessageButton extends FrameLayout {
 		setDirection(direction);
 		attributes.recycle();
 
-		setUnreadCount(0);
+		if (!isInEditMode()) setUnreadCount(0);
 	}
 
 	private void setDirection(int direction) {
@@ -64,11 +64,11 @@ public class UnreadMessageButton extends FrameLayout {
 
 	public void setUnreadCount(int count) {
 		if (count == 0) {
-			setVisibility(INVISIBLE);
+			fab.hide();
+			unread.setVisibility(INVISIBLE);
 		} else {
-			// FIXME: Use animations when upgrading to support library 24.2.0
-			//        https://code.google.com/p/android/issues/detail?id=216469
-			setVisibility(VISIBLE);
+			fab.show();
+			unread.setVisibility(VISIBLE);
 			unread.setText(String.valueOf(count));
 		}
 	}

briar-android/src/main/java/org/briarproject/briar/android/widget/LinkDialogFragment.java

@@ -5,6 +5,7 @@ import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.net.Uri;
 import android.os.Bundle;
+import android.support.annotation.NonNull;
 import android.support.v4.app.DialogFragment;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -42,8 +43,8 @@ public class LinkDialogFragment extends DialogFragment {
 	}
 
 	@Override
-	public View onCreateView(LayoutInflater inflater, ViewGroup container,
-			Bundle savedInstanceState) {
+	public View onCreateView(@NonNull LayoutInflater inflater,
+			ViewGroup container, Bundle savedInstanceState) {
 
 		View v = inflater.inflate(R.layout.fragment_link_dialog, container,
 				false);

briar-android/src/main/java/org/briarproject/briar/api/android/AndroidNotificationManager.java

@@ -21,7 +21,6 @@ public interface AndroidNotificationManager {
 	String PREF_NOTIFY_RINGTONE_NAME = "notifyRingtoneName";
 	String PREF_NOTIFY_RINGTONE_URI = "notifyRingtoneUri";
 	String PREF_NOTIFY_VIBRATION = "notifyVibration";
-	String PREF_NOTIFY_LOCK_SCREEN = "notifyLockScreen";
 
 	// Notification IDs
 	int ONGOING_NOTIFICATION_ID = 1;

briar-android/src/main/java/org/thoughtcrime/securesms/components/util/FutureTaskListener.java

@@ -1,23 +0,0 @@
-/**
- * Copyright (C) 2014 Open Whisper Systems
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package org.thoughtcrime.securesms.components.util;
-
-public interface FutureTaskListener<V> {
-	void onSuccess(V result);
-
-	void onFailure(Throwable error);
-}

briar-android/src/main/java/org/thoughtcrime/securesms/components/util/ListenableFutureTask.java

@@ -1,105 +0,0 @@
-/*
- * Copyright (C) 2014 Open Whisper Systems
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package org.thoughtcrime.securesms.components.util;
-
-import java.util.LinkedList;
-import java.util.List;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.FutureTask;
-
-import javax.annotation.Nullable;
-
-public class ListenableFutureTask<V> extends FutureTask<V> {
-
-	private final List<FutureTaskListener<V>> listeners = new LinkedList<>();
-
-	@Nullable
-	private final Object identifier;
-
-	public ListenableFutureTask(Callable<V> callable) {
-		this(callable, null);
-	}
-
-	private ListenableFutureTask(Callable<V> callable,
-			@Nullable Object identifier) {
-		super(callable);
-		this.identifier = identifier;
-	}
-
-	public ListenableFutureTask(V result) {
-		this(result, null);
-	}
-
-	private ListenableFutureTask(V result, @Nullable Object identifier) {
-		super(() -> result);
-		this.identifier = identifier;
-		this.run();
-	}
-
-	public synchronized void addListener(FutureTaskListener<V> listener) {
-		if (this.isDone()) {
-			callback(listener);
-		} else {
-			this.listeners.add(listener);
-		}
-	}
-
-	public synchronized void removeListener(FutureTaskListener<V> listener) {
-		this.listeners.remove(listener);
-	}
-
-	@Override
-	protected synchronized void done() {
-		callback();
-	}
-
-	private void callback() {
-		for (FutureTaskListener<V> listener : listeners) {
-			callback(listener);
-		}
-	}
-
-	private void callback(FutureTaskListener<V> listener) {
-		if (listener != null) {
-			try {
-				listener.onSuccess(get());
-			} catch (InterruptedException e) {
-				throw new AssertionError(e);
-			} catch (ExecutionException e) {
-				listener.onFailure(e);
-			}
-		}
-	}
-
-	@Override
-	public boolean equals(Object other) {
-		if (other != null && other instanceof ListenableFutureTask &&
-				this.identifier != null) {
-			return identifier.equals(other);
-		} else {
-			return super.equals(other);
-		}
-	}
-
-	@Override
-	public int hashCode() {
-		if (identifier != null) return identifier.hashCode();
-		else return super.hashCode();
-	}
-
-}

briar-android/src/main/res/drawable/ic_add_nearby.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportHeight="24.0"
+        android:viewportWidth="24.0">
+	<path
+		android:fillColor="#FFFFFFFF"
+		android:pathData="M12,11c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM18,13c0,-3.31 -2.69,-6 -6,-6s-6,2.69 -6,6c0,2.22 1.21,4.15 3,5.19l1,-1.74c-1.19,-0.7 -2,-1.97 -2,-3.45 0,-2.21 1.79,-4 4,-4s4,1.79 4,4c0,1.48 -0.81,2.75 -2,3.45l1,1.74c1.79,-1.04 3,-2.97 3,-5.19zM12,3C6.48,3 2,7.48 2,13c0,3.7 2.01,6.92 4.99,8.65l1,-1.73C5.61,18.53 4,15.96 4,13c0,-4.42 3.58,-8 8,-8s8,3.58 8,8c0,2.96 -1.61,5.53 -4,6.92l1,1.73c2.99,-1.73 5,-4.95 5,-8.65 0,-5.52 -4.48,-10 -10,-10z"/>
+</vector>

briar-android/src/main/res/drawable/ic_content_copy.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:tint="#2A93C6"
+        android:viewportHeight="24.0"
+        android:viewportWidth="24.0">
+	<path
+		android:fillColor="#FF000000"
+		android:pathData="M16,1L4,1c-1.1,0 -2,0.9 -2,2v14h2L4,3h12L16,1zM19,5L8,5c-1.1,0 -2,0.9 -2,2v14c0,1.1 0.9,2 2,2h11c1.1,0 2,-0.9 2,-2L21,7c0,-1.1 -0.9,-2 -2,-2zM19,21L8,21L8,7h11v14z"/>
+</vector>

briar-android/src/main/res/drawable/ic_content_paste.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:tint="#2A93C6"
+        android:viewportHeight="24.0"
+        android:viewportWidth="24.0">
+	<path
+		android:fillColor="#FF000000"
+		android:pathData="M19,2h-4.18C14.4,0.84 13.3,0 12,0c-1.3,0 -2.4,0.84 -2.82,2L5,2c-1.1,0 -2,0.9 -2,2v16c0,1.1 0.9,2 2,2h14c1.1,0 2,-0.9 2,-2L21,4c0,-1.1 -0.9,-2 -2,-2zM12,2c0.55,0 1,0.45 1,1s-0.45,1 -1,1 -1,-0.45 -1,-1 0.45,-1 1,-1zM19,20L5,20L5,4h2v3h10L17,4h2v16z"/>
+</vector>

briar-android/src/main/res/drawable/ic_link.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportHeight="24.0"
+        android:viewportWidth="24.0">
+	<path
+		android:fillColor="#FFFFFFFF"
+		android:pathData="M3.9,12c0,-1.71 1.39,-3.1 3.1,-3.1h4L11,7L7,7c-2.76,0 -5,2.24 -5,5s2.24,5 5,5h4v-1.9L7,15.1c-1.71,0 -3.1,-1.39 -3.1,-3.1zM8,13h8v-2L8,11v2zM17,7h-4v1.9h4c1.71,0 3.1,1.39 3.1,3.1s-1.39,3.1 -3.1,3.1h-4L13,17h4c2.76,0 5,-2.24 5,-5s-2.24,-5 -5,-5z"/>
+</vector>

briar-android/src/main/res/drawable/ic_link_down.xml

@@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportHeight="24"
+        android:viewportWidth="24">
+	<path
+		android:fillColor="#FFFFFF"
+		android:pathData="M16,6H13V7.9H16C18.26,7.9 20.1,9.73 20.1,12A4.1,4.1 0,0 1,16 16.1H13V18H16A6,6 0,0 0,22 12C22,8.68 19.31,6 16,6M3.9,12C3.9,9.73 5.74,7.9 8,7.9H11V6H8A6,6 0,0 0,2 12A6,6 0,0 0,8 18H11V16.1H8C5.74,16.1 3.9,14.26 3.9,12M8,13H16V11H8V13Z"/>
+	<path
+		android:fillColor="#FFFFFF"
+		android:pathData="m21.6598,17.4732h-2.2959v3.0612H17.5118l3,3 3,-3h-1.852z"/>
+</vector>

briar-android/src/main/res/drawable/ic_link_up.xml

@@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportHeight="24"
+        android:viewportWidth="24">
+	<path
+		android:fillColor="#FFFFFF"
+		android:pathData="M16,6H13V7.9H16C18.26,7.9 20.1,9.73 20.1,12A4.1,4.1 0,0 1,16 16.1H13V18H16A6,6 0,0 0,22 12C22,8.68 19.31,6 16,6M3.9,12C3.9,9.73 5.74,7.9 8,7.9H11V6H8A6,6 0,0 0,2 12A6,6 0,0 0,8 18H11V16.1H8C5.74,16.1 3.9,14.26 3.9,12M8,13H16V11H8V13Z"/>
+	<path
+		android:fillColor="#FFFFFF"
+		android:pathData="M21.6598,23.5344H19.3639V20.4732H17.5118l3,-3 3,3h-1.852z"/>
+</vector>

briar-android/src/main/res/drawable/ic_person.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M12,12c2.21,0 4,-1.79 4,-4s-1.79,-4 -4,-4 -4,1.79 -4,4 1.79,4 4,4zM12,14c-2.67,0 -8,1.34 -8,4v2h16v-2c0,-2.66 -5.33,-4 -8,-4z"/>
+</vector>

briar-android/src/main/res/drawable/ic_person_add.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M15,12c2.21,0 4,-1.79 4,-4s-1.79,-4 -4,-4 -4,1.79 -4,4 1.79,4 4,4zM6,10L6,7L4,7v3L1,10v2h3v3h2v-3h3v-2L6,10zM15,14c-2.67,0 -8,1.34 -8,4v2h16v-2c0,-2.66 -5.33,-4 -8,-4z"/>
+</vector>