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Screen Lock: Remember when keyguard was shown (for Android 6)

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Also automatically unlock if device screenlock was removed.
This commit is contained in:
Torsten Grote
2018-08-13 12:35:27 -03:00
parent 4d63272c04
commit 64e30844b8
3 changed files with 32 additions and 3 deletions
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4
briar-android/src/main/java/org/briarproject/briar/android/account/LockManagerImpl.java
View File

@@ -89,6 +89,10 @@ public class LockManagerImpl implements LockManager, Service, EventListener {
@Override
public boolean isLocked() {
if (locked && !hasScreenLock(appContext)) {
lockable.postValue(false);
locked = false;
}
return locked;
}

29
briar-android/src/main/java/org/briarproject/briar/android/login/UnlockActivity.java
View File

@@ -20,7 +20,6 @@ import javax.inject.Inject;
import static android.os.Build.VERSION.SDK_INT;
import static org.briarproject.briar.android.activity.RequestCodes.REQUEST_KEYGUARD_UNLOCK;
import static org.briarproject.briar.android.util.UiUtils.hasScreenLock;
@RequiresApi(21)
@MethodsNotNullByDefault
@@ -29,10 +28,13 @@ public class UnlockActivity extends BaseActivity {
private static final Logger LOG =
Logger.getLogger(UnlockActivity.class.getName());
private static final String KEYGUARD_SHOWN = "keyguardShown";
@Inject
LockManager lockManager;
private boolean keyguardShown = false;
@Override
public void injectActivity(ActivityComponent component) {
component.inject(this);
@@ -45,6 +47,20 @@ public class UnlockActivity extends BaseActivity {
Button button = findViewById(R.id.unlock);
button.setOnClickListener(view -> requestKeyguardUnlock());
keyguardShown = state != null && state.getBoolean(KEYGUARD_SHOWN);
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
// Saving whether we've shown the keyguard already is necessary
// for Android 6 when this activity gets destroyed.
//
// This will not help Android 5.
// There the system will show the keyguard once again.
// So if this activity was destroyed, the user needs to enter PIN twice.
outState.putBoolean(KEYGUARD_SHOWN, keyguardShown);
}
@Override
@@ -53,7 +69,10 @@ public class UnlockActivity extends BaseActivity {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_KEYGUARD_UNLOCK) {
if (resultCode == RESULT_OK) unlock();
else finish();
else {
finish();
overridePendingTransition(0, 0);
}
}
}
@@ -63,8 +82,11 @@ public class UnlockActivity extends BaseActivity {
// Show keyguard after onActivityResult() as been called.
// Check if app is still locked, lockable
// and not finishing (which is possible if recreated)
if (lockManager.isLocked() && hasScreenLock(this) && !isFinishing()) {
if (!keyguardShown && lockManager.isLocked() && !isFinishing()) {
requestKeyguardUnlock();
} else if (!lockManager.isLocked()) {
setResult(RESULT_OK);
finish();
}
}
@@ -85,6 +107,7 @@ public class UnlockActivity extends BaseActivity {
LOG.warning("Unlocking without keyguard");
unlock();
} else {
keyguardShown = true;
startActivityForResult(intent, REQUEST_KEYGUARD_UNLOCK);
overridePendingTransition(0, 0);
}

2
briar-android/src/main/java/org/briarproject/briar/api/android/LockManager.java
View File

@@ -20,6 +20,8 @@ public interface LockManager {
/**
* Returns true if app is currently locked, false otherwise.
* If the device's screen lock was removed while the app was locked,
* calling this will unlock the app automatically.
*/
boolean isLocked();