/**
* Allows the media keys to work when the keyguard is showing. The media keys should be of no
* interest to the actual keyguard view(s), so intercepting them here should not be of any harm.
*
* @param event The key event
* @return whether the event was consumed as a media key.
*/
private boolean interceptMediaKey(KeyEvent event) {
final int keyCode = event.getKeyCode();
if (event.getAction() == KeyEvent.ACTION_DOWN) {
switch (keyCode) {
case KeyEvent.KEYCODE_MEDIA_PLAY:
case KeyEvent.KEYCODE_MEDIA_PAUSE:
case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
/* Suppress PLAY/PAUSE toggle when phone is ringing or
* in-call to avoid music playback */
if (mTelephonyManager == null) {
mTelephonyManager =
(TelephonyManager) getContext().getSystemService(Context.TELEPHONY_SERVICE);
}
if (mTelephonyManager != null
&& mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) {
return true; // suppress key event
}
case KeyEvent.KEYCODE_MUTE:
case KeyEvent.KEYCODE_HEADSETHOOK:
case KeyEvent.KEYCODE_MEDIA_STOP:
case KeyEvent.KEYCODE_MEDIA_NEXT:
case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
case KeyEvent.KEYCODE_MEDIA_REWIND:
case KeyEvent.KEYCODE_MEDIA_RECORD:
case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD:
{
Intent intent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
intent.putExtra(Intent.EXTRA_KEY_EVENT, event);
getContext().sendOrderedBroadcast(intent, null);
return true;
}
case KeyEvent.KEYCODE_VOLUME_UP:
case KeyEvent.KEYCODE_VOLUME_DOWN:
case KeyEvent.KEYCODE_VOLUME_MUTE:
{
if (KEYGUARD_MANAGES_VOLUME) {
synchronized (this) {
if (mAudioManager == null) {
mAudioManager =
(AudioManager) getContext().getSystemService(Context.AUDIO_SERVICE);
}
}
// Volume buttons should only function for music.
if (mAudioManager.isMusicActive()) {
if (keyCode == KeyEvent.KEYCODE_VOLUME_MUTE) {
mAudioManager.toggleMute(AudioManager.STREAM_MUSIC);
} else {
mAudioManager.adjustStreamVolume(
AudioManager.STREAM_MUSIC,
keyCode == KeyEvent.KEYCODE_VOLUME_UP
? AudioManager.ADJUST_RAISE
: AudioManager.ADJUST_LOWER,
0);
}
}
// Don't execute default volume behavior
return true;
} else {
return false;
}
}
}
} else if (event.getAction() == KeyEvent.ACTION_UP) {
switch (keyCode) {
case KeyEvent.KEYCODE_MUTE:
case KeyEvent.KEYCODE_HEADSETHOOK:
case KeyEvent.KEYCODE_MEDIA_PLAY:
case KeyEvent.KEYCODE_MEDIA_PAUSE:
case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
case KeyEvent.KEYCODE_MEDIA_STOP:
case KeyEvent.KEYCODE_MEDIA_NEXT:
case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
case KeyEvent.KEYCODE_MEDIA_REWIND:
case KeyEvent.KEYCODE_MEDIA_RECORD:
case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD:
{
Intent intent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
intent.putExtra(Intent.EXTRA_KEY_EVENT, event);
getContext().sendOrderedBroadcast(intent, null);
return true;
}
}
}
return false;
}
