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Remove crypto pattern after two seconds

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Currently pattern is left on after a failed attempt. This change removes
it after a timeout.

Change-Id: I77830510b17396f6e64a482816f6041af0fdc166
This commit is contained in:
Paul Lawrence
2014-06-12 08:26:08 -07:00
parent c91d4d9341
commit f6cda3b176
1 changed files with 48 additions and 28 deletions
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24
src/com/android/settings/CryptKeeper.java
View File

@@ -65,6 +65,8 @@ import com.android.internal.widget.LockPatternUtils;
import com.android.internal.widget.LockPatternView;
import com.android.internal.widget.LockPatternView.Cell;
import static com.android.internal.widget.LockPatternView.DisplayMode;
import java.util.List;
/**
@@ -123,6 +125,15 @@ public class CryptKeeper extends Activity implements TextView.OnEditorActionList
/** Number of calls to {@link #notifyUser()} before we release the wakelock */
private int mReleaseWakeLockCountdown = 0;
// how long we wait to clear a wrong pattern
private static final int WRONG_PATTERN_CLEAR_TIMEOUT_MS = 1500;
private Runnable mClearPatternRunnable = new Runnable() {
public void run() {
mLockPatternView.clearPattern();
}
};
/**
* Used to propagate state through configuration changes (e.g. screen rotation)
*/
@@ -175,15 +186,22 @@ public class CryptKeeper extends Activity implements TextView.OnEditorActionList
} else if (failedAttempts == MAX_FAILED_ATTEMPTS) {
// Factory reset the device.
sendBroadcast(new Intent("android.intent.action.MASTER_CLEAR"));
} else if ((failedAttempts % COOL_DOWN_ATTEMPTS) == 0) {
} else {
// Wrong entry. Handle pattern case.
if (mLockPatternView != null) {
mLockPatternView.clearPattern();
mLockPatternView.setDisplayMode(DisplayMode.Wrong);
mLockPatternView.removeCallbacks(mClearPatternRunnable);
mLockPatternView.postDelayed(mClearPatternRunnable, WRONG_PATTERN_CLEAR_TIMEOUT_MS);
}
if ((failedAttempts % COOL_DOWN_ATTEMPTS) == 0) {
mCooldown = COOL_DOWN_INTERVAL;
cooldown();
} else {
final TextView status = (TextView) findViewById(R.id.status);
status.setText(R.string.try_again);
if (mLockPatternView != null) {
mLockPatternView.setDisplayMode(DisplayMode.Wrong);
}
// Reenable the password entry
if (mPasswordEntry != null) {
mPasswordEntry.setEnabled(true);
@@ -194,6 +212,7 @@ public class CryptKeeper extends Activity implements TextView.OnEditorActionList
}
}
}
}
private class ValidationTask extends AsyncTask<Void, Void, Boolean> {
@Override
@@ -587,6 +606,7 @@ public class CryptKeeper extends Activity implements TextView.OnEditorActionList
@Override
public void onPatternStart() {
mLockPatternView.removeCallbacks(mClearPatternRunnable);
}
@Override