Merge branch '566-raise-api-level' into 'master'

Stop supporting Gingerbread

Closes #566

See merge request !278

briar-android/AndroidManifest.xml

@@ -7,8 +7,7 @@
 	android:versionName="0.12">
 
 	<uses-sdk
-		android:minSdkVersion="9"
+		android:minSdkVersion="14"
-
 		android:targetSdkVersion="22"
 		tools:overrideLibrary="android.support.v14.preference"
 		/>

briar-android/build.gradle

@@ -19,13 +19,9 @@ dependencies {
 	compile("com.android.support:appcompat-v7:$supportVersion") {
 		exclude module: 'support-v4'
 	}
-	compile("com.android.support:preference-v7:$supportVersion") {
+
-		exclude module: 'support-v4'
-	}
 	compile("com.android.support:preference-v14:$supportVersion") {
 		exclude module: 'support-v4'
-		exclude module: 'preference-v7'
-		exclude module: 'recyclerview-v7'
 	}
 	compile("com.android.support:design:$supportVersion") {
 		exclude module: 'support-v4'
@@ -64,7 +60,6 @@ dependencyVerification {
 			'com.google.zxing:core:b4d82452e7a6bf6ec2698904b332431717ed8f9a850224f295aec89de80f2259',
 			'com.android.support:support-v4:81ce890f26d35c75ad17d0f998a7e3230330c3b41e0b629566bc744bee89e448',
 			'com.android.support:appcompat-v7:00f9d93acacd6731f309724054bf51492814b4b2869f16d7d5c0038dcb8c9a0d',
-			'com.android.support:preference-v7:775101bd07bd052e455761c5c5d9523d7ad59f2f320e3e8cbde241fd6b1d6025',
 			'com.android.support:preference-v14:44881bb46094e86d0bc2426f205419674a5b4eb514b44b5a4659b5de29f71eb7',
 			'com.android.support:design:003e0c0bea0a6891f8b2bc43f20ae7af2a49a17363e5bb10df5ee0bae12fa686',
 			'com.android.support:support-annotations:786ab0d060774fb95cfdaf4878771e14b85733b1af9d72a4aae762dc7c1dff9f',

briar-android/res/values-v14/styles.xml

@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-
-	<style name="BriarTheme" parent="BriarBaseTheme">
-		<!-- This fixes a UI bug in the support preference library -->
-		<item name="preferenceTheme">@style/PreferenceThemeOverlay.v14.Material</item>
-	</style>
-
-	<style name="BriarButton.Default">
-		<item name="android:textAllCaps">true</item>
-	</style>
-
-</resources>

briar-android/res/values/styles.xml

@@ -22,6 +22,10 @@
 		<item name="elevation">1dp</item>
 	</style>
 
+	<style name="BriarButton.Default">
+		<item name="android:textAllCaps">true</item>
+	</style>
+
 	<style name="BriarButton" parent="Widget.AppCompat.Button.Colored">
 		<item name="android:layout_width">match_parent</item>
 		<item name="android:layout_height">wrap_content</item>
@@ -29,8 +33,6 @@
 		<item name="android:padding">@dimen/margin_large</item>
 	</style>
 
-	<style name="BriarButton.Default"/>
-
 	<style name="BriarButtonFlat.Negative" parent="Widget.AppCompat.Button.Borderless">
 		<item name="android:textColor">@color/briar_button_negative</item>
 		<item name="android:textSize">@dimen/text_size_medium</item>

briar-android/res/values/themes.xml

@@ -34,7 +34,7 @@
 	<style name="BriarThemeNoActionBar.Default"/>
 
 	<style name="BriarTheme" parent="BriarBaseTheme">
-		<item name="preferenceTheme">@style/PreferenceThemeOverlay</item>
+		<item name="preferenceTheme">@style/PreferenceThemeOverlay.v14.Material</item>
 		<item name="android:listSeparatorTextViewStyle">@style/BriarTheme.ListSeparatorTextView</item>
 	</style>
 

briar-android/src/im/delight/android/identicons/IdenticonView.java

@@ -16,10 +16,8 @@ package im.delight.android.identicons;
  * limitations under the License.
  */
 
-import android.annotation.SuppressLint;
 import android.content.Context;
 import android.graphics.Canvas;
-import android.os.Build;
 import android.util.AttributeSet;
 import android.view.View;
 
@@ -41,12 +39,9 @@ abstract public class IdenticonView extends View {
 		init();
 	}
 
-	@SuppressLint("NewApi")
 	protected void init() {
 		setWillNotDraw(false);
-		if (Build.VERSION.SDK_INT >= 11) {
+		setLayerType(View.LAYER_TYPE_SOFTWARE, null);
-			setLayerType(View.LAYER_TYPE_SOFTWARE, null);
-		}
 	}
 
 	public void show(byte[] input) {

briar-android/src/org/briarproject/android/BriarActivity.java

@@ -76,9 +76,8 @@ public abstract class BriarActivity extends BaseActivity {
 		Intent i = new Intent(this, ExitActivity.class);
 		i.addFlags(FLAG_ACTIVITY_NEW_TASK
 				| FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
-				| FLAG_ACTIVITY_NO_ANIMATION);
+				| FLAG_ACTIVITY_NO_ANIMATION
-		if (Build.VERSION.SDK_INT >= 11)
+				| FLAG_ACTIVITY_CLEAR_TASK);
-			i.addFlags(FLAG_ACTIVITY_CLEAR_TASK);
 		startActivity(i);
 	}
 

briar-android/src/org/briarproject/android/forum/ForumActivity.java

@@ -3,11 +3,9 @@ package org.briarproject.android.forum;
 import android.animation.Animator;
 import android.animation.ArgbEvaluator;
 import android.animation.ValueAnimator;
-import android.annotation.TargetApi;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.graphics.drawable.ColorDrawable;
-import android.os.Build;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.design.widget.Snackbar;
@@ -519,14 +517,12 @@ public class ForumActivity extends BriarActivity implements
 			List<Integer> indexList =
 					getSubTreeIndexes(visiblePos, forumEntry.getLevel());
 			if (!indexList.isEmpty()) {
-				if (Build.VERSION.SDK_INT >= 11) {
+				// stop animating children
-					// stop animating children
+				for (int index : indexList) {
-					for (int index : indexList) {
+					ValueAnimator anim =
-						ValueAnimator anim =
+							animatingEntries.get(forumEntries.get(index));
-								animatingEntries.get(forumEntries.get(index));
+					if (anim != null && anim.isRunning()) {
-						if (anim != null && anim.isRunning()) {
+						anim.cancel();
-							anim.cancel();
-						}
 					}
 				}
 				if (indexList.size() == 1) {
@@ -560,7 +556,6 @@ public class ForumActivity extends BriarActivity implements
 			return null;
 		}
 
-		@TargetApi(11)
 		private void animateFadeOut(final ForumViewHolder ui,
 				final ForumEntry addedEntry) {
 			ui.setIsRecyclable(false);
@@ -686,9 +681,7 @@ public class ForumActivity extends BriarActivity implements
 				ui.cell.setBackgroundColor(ContextCompat
 						.getColor(ForumActivity.this,
 								R.color.forum_cell_highlight));
-				if (Build.VERSION.SDK_INT >= 11) {
+				animateFadeOut(ui, addedEntry);
-					animateFadeOut(ui, addedEntry);
-				}
 				addedEntry = null;
 			} else {
 				ui.cell.setBackgroundColor(ContextCompat

briar-android/src/org/briarproject/android/introduction/ContactChooserAdapter.java

@@ -1,11 +1,6 @@
 package org.briarproject.android.introduction;
 
 import android.content.Context;
-import android.graphics.Color;
-import android.graphics.ColorFilter;
-import android.graphics.PorterDuff;
-import android.graphics.PorterDuffColorFilter;
-import android.os.Build;
 import android.view.View;
 
 import org.briarproject.android.contact.ContactListAdapter;
@@ -47,6 +42,7 @@ public class ContactChooserAdapter extends ContactListAdapter {
 	 * Set the identity from whose perspective the contact shall be chosen.
 	 * Contacts that belong to a different author will be shown grayed out,
 	 * but are still clickable.
+	 *
 	 * @param authorId The ID of the local Author
 	 */
 	public void setLocalAuthor(AuthorId authorId) {
@@ -55,21 +51,12 @@ public class ContactChooserAdapter extends ContactListAdapter {
 	}
 
 	private void grayOutItem(final ContactHolder ui) {
-		if (Build.VERSION.SDK_INT >= 11) {
+		float alpha = 0.25f;
-			float alpha = 0.25f;
+		ui.bulb.setAlpha(alpha);
-			ui.bulb.setAlpha(alpha);
+		ui.avatar.setAlpha(alpha);
-			ui.avatar.setAlpha(alpha);
+		ui.name.setAlpha(alpha);
-			ui.name.setAlpha(alpha);
+		ui.date.setAlpha(alpha);
-			ui.date.setAlpha(alpha);
+		ui.identity.setAlpha(alpha);
-			ui.identity.setAlpha(alpha);
-		} else {
-			ColorFilter colorFilter = new PorterDuffColorFilter(Color.GRAY,
-					PorterDuff.Mode.MULTIPLY);
-			ui.bulb.setColorFilter(colorFilter);
-			ui.avatar.setColorFilter(colorFilter);
-			ui.name.setEnabled(false);
-			ui.date.setEnabled(false);
-		}
 	}
 
 }

briar-android/src/org/briarproject/android/report/DevReportActivity.java

@@ -4,7 +4,6 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.os.AsyncTask;
-import android.os.Build;
 import android.os.Bundle;
 import android.support.v7.app.AppCompatDelegate;
 import android.support.v7.widget.Toolbar;
@@ -101,11 +100,9 @@ public class DevReportActivity extends BaseCrashReportDialog
 
 		SharedPreferences prefs = sharedPreferencesFactory.create();
 		excludedFields = new HashSet<>();
-		if (Build.VERSION.SDK_INT >= 11) {
+		for (String name : prefs.getStringSet(PREF_EXCLUDED_FIELDS,
-			for (String name : prefs.getStringSet(PREF_EXCLUDED_FIELDS,
+				new HashSet<String>())) {
-					new HashSet<String>())) {
+			excludedFields.add(ReportField.valueOf(name));
-				excludedFields.add(ReportField.valueOf(name));
-			}
 		}
 
 		Toolbar tb = (Toolbar) findViewById(R.id.toolbar);
@@ -367,16 +364,14 @@ public class DevReportActivity extends BaseCrashReportDialog
 			protected void onPostExecute(Boolean success) {
 				final SharedPreferences prefs =
 						sharedPreferencesFactory.create();
-				if (Build.VERSION.SDK_INT >= 11) {
+				final SharedPreferences.Editor prefEditor =
-					final SharedPreferences.Editor prefEditor =
+						prefs.edit();
-							prefs.edit();
+				Set<String> fields = new HashSet<>();
-					Set<String> fields = new HashSet<>();
+				for (ReportField field : excludedFields) {
-					for (ReportField field : excludedFields) {
+					fields.add(field.name());
-						fields.add(field.name());
-					}
-					prefEditor.putStringSet(PREF_EXCLUDED_FIELDS, fields);
-					prefEditor.apply();
 				}
+				prefEditor.putStringSet(PREF_EXCLUDED_FIELDS, fields);
+				prefEditor.apply();
 
 				if (success) {
 					// Retrieve user's comment and email address, if any

briar-android/src/org/briarproject/android/sharing/ContactSelectorAdapter.java

@@ -1,12 +1,6 @@
 package org.briarproject.android.sharing;
 
 import android.content.Context;
-import android.graphics.Color;
-import android.graphics.ColorFilter;
-import android.graphics.PorterDuff;
-import android.graphics.PorterDuffColorFilter;
-import android.os.Build;
-import android.support.v4.content.ContextCompat;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -27,25 +21,10 @@ import static android.view.View.VISIBLE;
 class ContactSelectorAdapter
 		extends BaseContactListAdapter<ContactSelectorAdapter.SelectableContactHolder> {
 
-	private final ColorFilter grayColorFilter;
-
 	ContactSelectorAdapter(Context context,
 			OnItemClickListener listener) {
 
 		super(context, listener);
-		if (Build.VERSION.SDK_INT >= 11) {
-			grayColorFilter = null;
-		} else {
-			// Overlay the background colour at 75% opacity
-			int bg = ContextCompat.getColor(context, R.color.window_background);
-			int alpha = (int) (255 * 0.75f);
-			int red = Color.red(bg);
-			int green = Color.green(bg);
-			int blue = Color.blue(bg);
-			bg = Color.argb(alpha, red, green, blue);
-			grayColorFilter = new PorterDuffColorFilter(bg,
-					PorterDuff.Mode.SRC_OVER);
-		}
 	}
 
 	@Override
@@ -114,14 +93,9 @@ class ContactSelectorAdapter
 	}
 
 	private void grayOutItem(SelectableContactHolder ui, boolean gray) {
-		if (Build.VERSION.SDK_INT >= 11) {
+		float alpha = gray ? 0.25f : 1f;
-			float alpha = gray ? 0.25f : 1f;
+		ui.avatar.setAlpha(alpha);
-			ui.avatar.setAlpha(alpha);
+		ui.name.setAlpha(alpha);
-			ui.name.setAlpha(alpha);
+		ui.checkBox.setAlpha(alpha);
-			ui.checkBox.setAlpha(alpha);
-		} else {
-			if (gray) ui.avatar.setColorFilter(grayColorFilter);
-			else ui.avatar.clearColorFilter();
-		}
 	}
 }

briar-android/src/org/briarproject/android/util/BriarRecyclerView.java

@@ -1,9 +1,7 @@
 package org.briarproject.android.util;
 
-import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.res.TypedArray;
-import android.os.Build;
 import android.support.v7.widget.RecyclerView;
 import android.support.v7.widget.RecyclerView.Adapter;
 import android.util.AttributeSet;
@@ -71,7 +69,7 @@ public class BriarRecyclerView extends FrameLayout {
 		showProgressBar();
 
 		// scroll down when opening keyboard
-		if (isScrollingToEnd && Build.VERSION.SDK_INT >= 11) {
+		if (isScrollingToEnd) {
 			addLayoutChangeListener();
 		}
 
@@ -90,7 +88,6 @@ public class BriarRecyclerView extends FrameLayout {
 		};
 	}
 
-	@TargetApi(11)
 	private void addLayoutChangeListener() {
 		recyclerView.addOnLayoutChangeListener(
 				new OnLayoutChangeListener() {

briar-android/src/org/briarproject/android/util/CameraView.java

@@ -25,7 +25,6 @@ import static android.hardware.Camera.Parameters.FOCUS_MODE_EDOF;
 import static android.hardware.Camera.Parameters.FOCUS_MODE_FIXED;
 import static android.hardware.Camera.Parameters.FOCUS_MODE_MACRO;
 import static android.hardware.Camera.Parameters.SCENE_MODE_BARCODE;
-import static android.view.SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS;
 import static java.util.logging.Level.INFO;
 import static java.util.logging.Level.WARNING;
 
@@ -59,8 +58,6 @@ public class CameraView extends SurfaceView implements SurfaceHolder.Callback,
 		super.onAttachedToWindow();
 		setKeepScreenOn(true);
 		SurfaceHolder holder = getHolder();
-		if (Build.VERSION.SDK_INT < 11)
-			holder.setType(SURFACE_TYPE_PUSH_BUFFERS);
 		holder.addCallback(this);
 	}
 
@@ -164,8 +161,7 @@ public class CameraView extends SurfaceView implements SurfaceHolder.Callback,
 			LOG.info("Setting scene mode to barcode");
 			params.setSceneMode(SCENE_MODE_BARCODE);
 		}
-		if (Build.VERSION.SDK_INT >= 14 &&
+		if (focusModes.contains(FOCUS_MODE_CONTINUOUS_PICTURE)) {
-				focusModes.contains(FOCUS_MODE_CONTINUOUS_PICTURE)) {
 			LOG.info("Setting focus mode to continuous picture");
 			params.setFocusMode(FOCUS_MODE_CONTINUOUS_PICTURE);
 		} else if (focusModes.contains(FOCUS_MODE_CONTINUOUS_VIDEO)) {
@@ -212,12 +208,6 @@ public class CameraView extends SurfaceView implements SurfaceHolder.Callback,
 						+ ", stretch " + stretch + ", pixels " + pixels
 						+ ", score " + score);
 			}
-			// Large preview sizes can crash older devices
-			int maxDimension = Math.max(width, height);
-			if (Build.VERSION.SDK_INT < 14 && maxDimension > screenMax) {
-				LOG.info("Too large for screen");
-				continue;
-			}
 			if (bestSize == null || score > bestScore) {
 				bestSize = size;
 				bestScore = score;

briar-android/src/org/briarproject/android/util/CustomAnimations.java

@@ -2,8 +2,6 @@ package org.briarproject.android.util;
 
 import android.animation.Animator;
 import android.animation.ValueAnimator;
-import android.annotation.SuppressLint;
-import android.os.Build;
 import android.view.ViewGroup;
 
 import static android.view.View.GONE;
@@ -12,25 +10,7 @@ import static android.view.View.VISIBLE;
 
 public class CustomAnimations {
 
-	public static void animateHeight(ViewGroup viewGroup, boolean isExtending,
+	public static void animateHeight(final ViewGroup viewGroup,
-			int duration) {
-		if (Build.VERSION.SDK_INT >= 11) {
-			animateHeightPostGingerbread(viewGroup, isExtending, duration);
-		} else {
-			animateHeightGingerbread(viewGroup, isExtending);
-		}
-	}
-
-	private static void animateHeightGingerbread(ViewGroup viewGroup,
-			boolean isExtending) {
-		// No animations for Gingerbread
-		if (isExtending) viewGroup.setVisibility(VISIBLE);
-		else viewGroup.setVisibility(GONE);
-	}
-
-
-	@SuppressLint("NewApi")
-	private static void animateHeightPostGingerbread(final ViewGroup viewGroup,
 			final boolean isExtending, int duration) {
 		ValueAnimator anim;
 		if (isExtending) {
@@ -74,4 +54,5 @@ public class CustomAnimations {
 		anim.setDuration(duration);
 		anim.start();
 	}
+
 }

briar-android/src/org/briarproject/plugins/droidtooth/DroidtoothPlugin.java

@@ -182,7 +182,8 @@ class DroidtoothPlugin implements DuplexPlugin {
 				// Bind a server socket to accept connections from contacts
 				BluetoothServerSocket ss;
 				try {
-					ss = InsecureBluetooth.listen(adapter, "RFCOMM", getUuid());
+					ss = adapter.listenUsingInsecureRfcommWithServiceRecord(
+							"RFCOMM", getUuid());
 				} catch (IOException e) {
 					if (LOG.isLoggable(WARNING))
 						LOG.log(WARNING, e.toString(), e);
@@ -321,7 +322,7 @@ class DroidtoothPlugin implements DuplexPlugin {
 		BluetoothDevice d = adapter.getRemoteDevice(address);
 		BluetoothSocket s = null;
 		try {
-			s = InsecureBluetooth.createSocket(d, u);
+			s = d.createInsecureRfcommSocketToServiceRecord(u);
 			if (LOG.isLoggable(INFO)) LOG.info("Connecting to " + address);
 			s.connect();
 			if (LOG.isLoggable(INFO)) LOG.info("Connected to " + address);
@@ -372,7 +373,8 @@ class DroidtoothPlugin implements DuplexPlugin {
 		// Bind a server socket for receiving invitation connections
 		BluetoothServerSocket ss;
 		try {
-			ss = InsecureBluetooth.listen(adapter, "RFCOMM", uuid);
+			ss = adapter.listenUsingInsecureRfcommWithServiceRecord(
+					"RFCOMM", getUuid());
 		} catch (IOException e) {
 			if (LOG.isLoggable(WARNING)) LOG.log(WARNING, e.toString(), e);
 			return null;
@@ -453,7 +455,8 @@ class DroidtoothPlugin implements DuplexPlugin {
 		// Bind a server socket for receiving invitation connections
 		BluetoothServerSocket ss;
 		try {
-			ss = InsecureBluetooth.listen(adapter, "RFCOMM", uuid);
+			ss = adapter.listenUsingInsecureRfcommWithServiceRecord(
+					"RFCOMM", getUuid());
 		} catch (IOException e) {
 			if (LOG.isLoggable(WARNING)) LOG.log(WARNING, e.toString(), e);
 			return null;

briar-android/src/org/briarproject/plugins/droidtooth/InsecureBluetooth.java

@@ -1,171 +0,0 @@
-package org.briarproject.plugins.droidtooth;
-
-import java.io.IOException;
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Field;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.UUID;
-import java.util.logging.Logger;
-
-import android.annotation.SuppressLint;
-import android.bluetooth.BluetoothAdapter;
-import android.bluetooth.BluetoothDevice;
-import android.bluetooth.BluetoothServerSocket;
-import android.bluetooth.BluetoothSocket;
-import android.os.Binder;
-import android.os.Build;
-import android.os.Handler;
-import android.os.IBinder;
-import android.os.ParcelUuid;
-
-// Based on http://stanford.edu/~tpurtell/InsecureBluetooth.java by T.J. Purtell
-class InsecureBluetooth {
-
-	private static final Logger LOG =
-			Logger.getLogger(InsecureBluetooth.class.getName());
-
-	private static final int TYPE_RFCOMM = 1;
-
-	@SuppressLint("NewApi")
-	static BluetoothServerSocket listen(BluetoothAdapter adapter, String name,
-			UUID uuid) throws IOException {
-		if (Build.VERSION.SDK_INT >= 10) {
-			LOG.info("Listening with new API");
-			return adapter.listenUsingInsecureRfcommWithServiceRecord(name,
-					uuid);
-		}
-		try {
-			LOG.info("Listening via reflection");
-			// Find an available channel
-			String className = BluetoothAdapter.class.getCanonicalName()
-					+ ".RfcommChannelPicker";
-			Class<?> channelPickerClass = null;
-			Class<?>[] children = BluetoothAdapter.class.getDeclaredClasses();
-			for (Class<?> c : children) {
-				if (c.getCanonicalName().equals(className)) {
-					channelPickerClass = c;
-					break;
-				}
-			}
-			if (channelPickerClass == null)
-				throw new IOException("Can't find channel picker class");
-			Constructor<?> constructor =
-					channelPickerClass.getDeclaredConstructor(UUID.class);
-			constructor.setAccessible(true);
-			Object channelPicker = constructor.newInstance(uuid);
-			Method nextChannel =
-					channelPickerClass.getDeclaredMethod("nextChannel");
-			nextChannel.setAccessible(true);
-			int channel = (Integer) nextChannel.invoke(channelPicker);
-			if (channel == -1) throw new IOException("No available channels");
-			// Listen on the channel
-			BluetoothServerSocket socket = listen(channel);
-			// Add a service record
-			Field f = BluetoothAdapter.class.getDeclaredField("mService");
-			f.setAccessible(true);
-			Object mService = f.get(adapter);
-			Method addRfcommServiceRecord =
-					mService.getClass().getDeclaredMethod(
-							"addRfcommServiceRecord", String.class,
-							ParcelUuid.class, int.class, IBinder.class);
-			addRfcommServiceRecord.setAccessible(true);
-			int handle = (Integer) addRfcommServiceRecord.invoke(mService, name,
-					new ParcelUuid(uuid), channel, new Binder());
-			if (handle == -1) {
-				socket.close();
-				throw new IOException("Can't register SDP record for " + name);
-			}
-			Field f1 = BluetoothAdapter.class.getDeclaredField("mHandler");
-			f1.setAccessible(true);
-			Object mHandler = f1.get(adapter);
-			Method setCloseHandler = socket.getClass().getDeclaredMethod(
-					"setCloseHandler", Handler.class, int.class);
-			setCloseHandler.setAccessible(true);
-			setCloseHandler.invoke(socket, mHandler, handle);
-			return socket;
-		} catch (NoSuchMethodException e) {
-			throw new IOException(e);
-		} catch (NoSuchFieldException e) {
-			throw new IOException(e);
-		} catch (IllegalAccessException e) {
-			throw new IOException(e);
-		} catch (InstantiationException e) {
-			throw new IOException(e);
-		} catch (InvocationTargetException e) {
-			if (e.getCause() instanceof IOException) {
-				throw (IOException) e.getCause();
-			} else {
-				throw new IOException(e);
-			}
-		}
-	}
-
-	private static BluetoothServerSocket listen(int port) throws IOException {
-		try {
-			Constructor<BluetoothServerSocket> constructor =
-					BluetoothServerSocket.class.getDeclaredConstructor(
-							int.class, boolean.class, boolean.class, int.class);
-			constructor.setAccessible(true);
-			BluetoothServerSocket socket = constructor.newInstance(TYPE_RFCOMM,
-					false, false, port);
-			Field f = BluetoothServerSocket.class.getDeclaredField("mSocket");
-			f.setAccessible(true);
-			Object mSocket = f.get(socket);
-			Method bindListen =
-					mSocket.getClass().getDeclaredMethod("bindListen");
-			bindListen.setAccessible(true);
-			int errno = (Integer) bindListen.invoke(mSocket);
-			if (errno != 0) {
-				socket.close();
-				throw new IOException("Can't bind: errno " + errno);
-			}
-			return socket;
-		} catch (NoSuchMethodException e) {
-			throw new IOException(e);
-		} catch (NoSuchFieldException e) {
-			throw new IOException(e);
-		} catch (IllegalAccessException e) {
-			throw new IOException(e);
-		} catch (InstantiationException e) {
-			throw new IOException(e);
-		} catch (InvocationTargetException e) {
-			if (e.getCause() instanceof IOException) {
-				throw (IOException) e.getCause();
-			} else {
-				throw new IOException(e);
-			}
-		}
-	}
-
-	@SuppressLint("NewApi")
-	static BluetoothSocket createSocket(BluetoothDevice device, UUID uuid)
-			throws IOException {
-		if (Build.VERSION.SDK_INT >= 10) {
-			LOG.info("Creating socket with new API");
-			return device.createInsecureRfcommSocketToServiceRecord(uuid);
-		}
-		try {
-			LOG.info("Creating socket via reflection");
-			Constructor<BluetoothSocket> constructor =
-					BluetoothSocket.class.getDeclaredConstructor(int.class,
-							int.class, boolean.class, boolean.class,
-							BluetoothDevice.class, int.class, ParcelUuid.class);
-			constructor.setAccessible(true);
-			return constructor.newInstance(TYPE_RFCOMM, -1, false, true, device,
-					-1, new ParcelUuid(uuid));
-		} catch (NoSuchMethodException e) {
-			throw new IOException(e);
-		} catch (IllegalAccessException e) {
-			throw new IOException(e);
-		} catch (InstantiationException e) {
-			throw new IOException(e);
-		} catch (InvocationTargetException e) {
-			if (e.getCause() instanceof IOException) {
-				throw (IOException) e.getCause();
-			} else {
-				throw new IOException(e);
-			}
-		}
-	}
-}