下面列出了android.view.KeyEvent#KEYCODE_MEDIA_STOP 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
@Override
public void onReceive(Context context, Intent intent) {
if (!Intent.ACTION_MEDIA_BUTTON.equals(intent.getAction())) {
return;
}
KeyEvent event = intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
if (event.getAction() != KeyEvent.ACTION_DOWN) {
return;
}
switch (event.getKeyCode()) {
case KeyEvent.KEYCODE_MEDIA_STOP:
case KeyEvent.KEYCODE_MEDIA_PAUSE:
NoiseService.stopNow(context, R.string.stop_reason_mediabutton);
break;
}
}
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
int keyCode = event.getKeyCode();
if (event.getRepeatCount() == 0
&& (keyCode == KeyEvent.KEYCODE_HEADSETHOOK
|| keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE || keyCode == KeyEvent.KEYCODE_SPACE)) {
doPauseResume();
show(sDefaultTimeout);
if (mPauseButton != null)
mPauseButton.requestFocus();
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP) {
if (mPlayer.isPlaying()) {
mPlayer.pause();
updatePausePlay();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_BACK
|| keyCode == KeyEvent.KEYCODE_MENU) {
hide();
return true;
} else {
show(sDefaultTimeout);
}
return super.dispatchKeyEvent(event);
}
static boolean isMediaKey(int keyCode) {
switch (keyCode) {
case KEYCODE_MEDIA_PLAY:
case KEYCODE_MEDIA_PAUSE:
case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
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 KEYCODE_MEDIA_RECORD:
case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: {
return true;
}
}
return false;
}
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
int keyCode = event.getKeyCode();
if (event.getRepeatCount() == 0 && (keyCode == KeyEvent.KEYCODE_HEADSETHOOK || keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE || keyCode == KeyEvent.KEYCODE_SPACE)) {
doPauseResume();
show(sDefaultTimeout);
if (mPauseButton != null)
mPauseButton.requestFocus();
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP) {
if (mPlayer.isPlaying()) {
mPlayer.pause();
updatePausePlay();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_BACK || keyCode == KeyEvent.KEYCODE_MENU) {
hide();
return true;
} else {
show(sDefaultTimeout);
}
return super.dispatchKeyEvent(event);
}
static boolean isMediaKey(int keyCode) {
switch (keyCode) {
case KEYCODE_MEDIA_PLAY:
case KEYCODE_MEDIA_PAUSE:
case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
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 KEYCODE_MEDIA_RECORD:
case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: {
return true;
}
}
return false;
}
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
int keyCode = event.getKeyCode();
if (event.getRepeatCount() == 0
&& (keyCode == KeyEvent.KEYCODE_HEADSETHOOK
|| keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE || keyCode == KeyEvent.KEYCODE_SPACE)) {
doPauseResume();
show(sDefaultTimeout);
if (mPauseButton != null)
mPauseButton.requestFocus();
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP) {
if (mPlayer.isPlaying()) {
mPlayer.pause();
updatePausePlay();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_BACK
|| keyCode == KeyEvent.KEYCODE_MENU) {
hide();
return true;
} else {
show(sDefaultTimeout);
}
return super.dispatchKeyEvent(event);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
boolean isKeyCodeSupported = keyCode != KeyEvent.KEYCODE_BACK &&
keyCode != KeyEvent.KEYCODE_VOLUME_UP &&
keyCode != KeyEvent.KEYCODE_VOLUME_DOWN &&
keyCode != KeyEvent.KEYCODE_VOLUME_MUTE &&
keyCode != KeyEvent.KEYCODE_MENU &&
keyCode != KeyEvent.KEYCODE_CALL &&
keyCode != KeyEvent.KEYCODE_ENDCALL;
if (isInPlaybackState() && isKeyCodeSupported && mMediaController != null) {
if (keyCode == KeyEvent.KEYCODE_HEADSETHOOK ||
keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
} else {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_PLAY) {
if (!mMediaPlayer.isPlaying()) {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP
|| keyCode == KeyEvent.KEYCODE_MEDIA_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
}
return true;
} else {
toggleMediaControlsVisiblity();
}
}
return super.onKeyDown(keyCode, event);
}
@Override
public void onReceive(Context context, Intent intent) {
Log.v(TAG, "onReceive " + intent.getAction() + " " + intent.toString());
Bundle bundle = intent.getExtras();
Set<String> set = bundle.keySet();
KeyEvent event = bundle.getParcelable(Intent.EXTRA_KEY_EVENT);
if (event.getAction() == KeyEvent.ACTION_UP) {
switch (event.getKeyCode()) {
case KeyEvent.KEYCODE_MEDIA_NEXT:
PlayManager.getInstance(context).next();
break;
case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
PlayManager.getInstance(context).previous();
break;
case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
PlayManager.getInstance(context).dispatch();
break;
case KeyEvent.KEYCODE_MEDIA_STOP:
PlayManager.getInstance(context).stop();
PlayManager.getInstance(context).release();
break;
}
}
/*for (String key : set) {
Log.v(TAG, "onReceive key=" + key + " value=" + bundle.get(key));
}*/
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
boolean isKeyCodeSupported = keyCode != KeyEvent.KEYCODE_BACK &&
keyCode != KeyEvent.KEYCODE_VOLUME_UP &&
keyCode != KeyEvent.KEYCODE_VOLUME_DOWN &&
keyCode != KeyEvent.KEYCODE_VOLUME_MUTE &&
keyCode != KeyEvent.KEYCODE_MENU &&
keyCode != KeyEvent.KEYCODE_CALL &&
keyCode != KeyEvent.KEYCODE_ENDCALL;
if (isInPlaybackState() && isKeyCodeSupported && mMediaController != null) {
if (keyCode == KeyEvent.KEYCODE_HEADSETHOOK ||
keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
} else {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_PLAY) {
if (!mMediaPlayer.isPlaying()) {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP
|| keyCode == KeyEvent.KEYCODE_MEDIA_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
}
return true;
} else {
toggleMediaControlsVisiblity();
}
}
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
boolean isKeyCodeSupported = keyCode != KeyEvent.KEYCODE_BACK &&
keyCode != KeyEvent.KEYCODE_VOLUME_UP &&
keyCode != KeyEvent.KEYCODE_VOLUME_DOWN &&
keyCode != KeyEvent.KEYCODE_VOLUME_MUTE &&
keyCode != KeyEvent.KEYCODE_MENU &&
keyCode != KeyEvent.KEYCODE_CALL &&
keyCode != KeyEvent.KEYCODE_ENDCALL;
if (isInPlaybackState() && isKeyCodeSupported && mMediaController != null) {
if (keyCode == KeyEvent.KEYCODE_HEADSETHOOK ||
keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
} else {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_PLAY) {
if (!mMediaPlayer.isPlaying()) {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP
|| keyCode == KeyEvent.KEYCODE_MEDIA_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
}
return true;
} else {
toggleMediaControlsVisiblity();
}
}
return super.onKeyDown(keyCode, event);
}
public static boolean handleIntent(final Context context, final Intent intent) {
final String intentAction = intent.getAction();
if (Intent.ACTION_MEDIA_BUTTON.equals(intentAction)) {
final KeyEvent event = intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
if (event == null) {
return false;
}
final int keycode = event.getKeyCode();
final int action = event.getAction();
String command = null;
switch (keycode) {
case KeyEvent.KEYCODE_MEDIA_STOP:
case KeyEvent.KEYCODE_MEDIA_PAUSE:
case KeyEvent.KEYCODE_MEDIA_PLAY:
case KeyEvent.KEYCODE_HEADSETHOOK:
case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
command = ReadAloudService.ActionMediaPlay;
break;
case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
command = ReadAloudService.ActionMediaPrev;
break;
case KeyEvent.KEYCODE_MEDIA_NEXT:
command = ReadAloudService.ActionMediaNext;
break;
default:
break;
}
if (command != null) {
if (action == KeyEvent.ACTION_DOWN) {
readAloud(context, command);
return true;
}
}
}
return false;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
boolean isKeyCodeSupported = keyCode != KeyEvent.KEYCODE_BACK &&
keyCode != KeyEvent.KEYCODE_VOLUME_UP &&
keyCode != KeyEvent.KEYCODE_VOLUME_DOWN &&
keyCode != KeyEvent.KEYCODE_VOLUME_MUTE &&
keyCode != KeyEvent.KEYCODE_MENU &&
keyCode != KeyEvent.KEYCODE_CALL &&
keyCode != KeyEvent.KEYCODE_ENDCALL;
if (isInPlaybackState() && isKeyCodeSupported && mMediaController != null) {
if (keyCode == KeyEvent.KEYCODE_HEADSETHOOK ||
keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
} else {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_PLAY) {
if (!mMediaPlayer.isPlaying()) {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP
|| keyCode == KeyEvent.KEYCODE_MEDIA_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
}
return true;
} else {
toggleMediaControlsVisiblity();
}
}
return super.onKeyDown(keyCode, event);
}
public static boolean handleIntent(final Context context, final Intent intent) {
final String intentAction = intent.getAction();
if (Intent.ACTION_MEDIA_BUTTON.equals(intentAction)) {
final KeyEvent event = intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
if (event == null) {
return false;
}
final int keycode = event.getKeyCode();
final int action = event.getAction();
final long eventTime = event.getEventTime() != 0 ?
event.getEventTime() : System.currentTimeMillis();
// Fallback to system time if event time was not available.
String command = null;
switch (keycode) {
case KeyEvent.KEYCODE_MEDIA_STOP:
command = MusicService.ACTION_STOP;
break;
case KeyEvent.KEYCODE_HEADSETHOOK:
case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
command = MusicService.ACTION_TOGGLE_PAUSE;
break;
case KeyEvent.KEYCODE_MEDIA_NEXT:
command = MusicService.ACTION_SKIP;
break;
case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
command = MusicService.ACTION_REWIND;
break;
case KeyEvent.KEYCODE_MEDIA_PAUSE:
command = MusicService.ACTION_PAUSE;
break;
case KeyEvent.KEYCODE_MEDIA_PLAY:
command = MusicService.ACTION_PLAY;
break;
}
if (command != null) {
if (action == KeyEvent.ACTION_DOWN) {
if (event.getRepeatCount() == 0) {
// Only consider the first event in a sequence, not the repeat events,
// so that we don't trigger in cases where the first event went to
// a different app (e.g. when the user ends a phone call by
// long pressing the headset button)
// The service may or may not be running, but we need to send it
// a command.
if (keycode == KeyEvent.KEYCODE_HEADSETHOOK || keycode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE) {
if (eventTime - mLastClickTime >= DOUBLE_CLICK) {
mClickCounter = 0;
}
mClickCounter++;
if (DEBUG) Log.v(TAG, "Got headset click, count = " + mClickCounter);
mHandler.removeMessages(MSG_HEADSET_DOUBLE_CLICK_TIMEOUT);
Message msg = mHandler.obtainMessage(
MSG_HEADSET_DOUBLE_CLICK_TIMEOUT, mClickCounter, 0, context);
long delay = mClickCounter < 3 ? DOUBLE_CLICK : 0;
if (mClickCounter >= 3) {
mClickCounter = 0;
}
mLastClickTime = eventTime;
acquireWakeLockAndSendMessage(context, msg, delay);
} else {
startService(context, command);
}
return true;
}
}
}
}
return false;
}
public static boolean handleIntent(final Context context, final Intent intent) {
final String intentAction = intent.getAction();
if (Intent.ACTION_MEDIA_BUTTON.equals(intentAction)) {
final KeyEvent event = intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
if (event == null) {
return false;
}
final int keycode = event.getKeyCode();
final int action = event.getAction();
final long eventTime = event.getEventTime() != 0 ?
event.getEventTime() : System.currentTimeMillis();
// Fallback to system time if event time was not available.
String command = null;
switch (keycode) {
case KeyEvent.KEYCODE_MEDIA_STOP:
command = MusicService.ACTION_STOP;
break;
case KeyEvent.KEYCODE_HEADSETHOOK:
case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
command = MusicService.ACTION_TOGGLE_PAUSE;
break;
case KeyEvent.KEYCODE_MEDIA_NEXT:
command = MusicService.ACTION_SKIP;
break;
case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
command = MusicService.ACTION_REWIND;
break;
case KeyEvent.KEYCODE_MEDIA_PAUSE:
command = MusicService.ACTION_PAUSE;
break;
case KeyEvent.KEYCODE_MEDIA_PLAY:
command = MusicService.ACTION_PLAY;
break;
}
if (command != null) {
if (action == KeyEvent.ACTION_DOWN) {
if (event.getRepeatCount() == 0) {
// Only consider the first event in a sequence, not the repeat events,
// so that we don't trigger in cases where the first event went to
// a different app (e.g. when the user ends a phone call by
// long pressing the headset button)
// The service may or may not be running, but we need to send it
// a command.
if (keycode == KeyEvent.KEYCODE_HEADSETHOOK || keycode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE) {
if (eventTime - mLastClickTime >= DOUBLE_CLICK) {
mClickCounter = 0;
}
mClickCounter++;
if (DEBUG) Log.v(TAG, "Got headset click, count = " + mClickCounter);
mHandler.removeMessages(MSG_HEADSET_DOUBLE_CLICK_TIMEOUT);
Message msg = mHandler.obtainMessage(
MSG_HEADSET_DOUBLE_CLICK_TIMEOUT, mClickCounter, 0, context);
long delay = mClickCounter < 3 ? DOUBLE_CLICK : 0;
if (mClickCounter >= 3) {
mClickCounter = 0;
}
mLastClickTime = eventTime;
acquireWakeLockAndSendMessage(context, msg, delay);
} else {
startService(context, command);
}
return true;
}
}
}
}
return false;
}
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_MEDIA_BUTTON)) {
if (intent.getExtras() == null) {
return;
}
KeyEvent keyEvent = (KeyEvent) intent.getExtras().get(Intent.EXTRA_KEY_EVENT);
if (keyEvent == null) {
return;
}
if (keyEvent.getAction() != KeyEvent.ACTION_DOWN)
return;
switch (keyEvent.getKeyCode()) {
case KeyEvent.KEYCODE_HEADSETHOOK:
case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
if (MediaController.getInstance().isMessagePaused()) {
MediaController.getInstance().playMessage(MediaController.getInstance().getPlayingMessageObject());
} else {
MediaController.getInstance().pauseMessage(MediaController.getInstance().getPlayingMessageObject());
}
break;
case KeyEvent.KEYCODE_MEDIA_PLAY:
MediaController.getInstance().playMessage(MediaController.getInstance().getPlayingMessageObject());
break;
case KeyEvent.KEYCODE_MEDIA_PAUSE:
MediaController.getInstance().pauseMessage(MediaController.getInstance().getPlayingMessageObject());
break;
case KeyEvent.KEYCODE_MEDIA_STOP:
break;
case KeyEvent.KEYCODE_MEDIA_NEXT:
MediaController.getInstance().playNextMessage();
break;
case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
MediaController.getInstance().playPreviousMessage();
break;
}
} else {
if (intent.getAction().equals(MusicPlayerService.NOTIFY_PLAY)) {
MediaController.getInstance().playMessage(MediaController.getInstance().getPlayingMessageObject());
} else if (intent.getAction().equals(MusicPlayerService.NOTIFY_PAUSE) || intent.getAction().equals(android.media.AudioManager.ACTION_AUDIO_BECOMING_NOISY)) {
MediaController.getInstance().pauseMessage(MediaController.getInstance().getPlayingMessageObject());
} else if (intent.getAction().equals(MusicPlayerService.NOTIFY_NEXT)) {
MediaController.getInstance().playNextMessage();
} else if (intent.getAction().equals(MusicPlayerService.NOTIFY_CLOSE)) {
MediaController.getInstance().cleanupPlayer(true, true);
} else if (intent.getAction().equals(MusicPlayerService.NOTIFY_PREVIOUS)) {
MediaController.getInstance().playPreviousMessage();
}
}
}
/**
* Report that a media button has been pressed. This is like
* {@link android.view.KeyEvent.Callback#onKeyDown(int, android.view.KeyEvent)} but
* will only deliver media keys. The default implementation handles these keys:
* <ul>
* <li>KEYCODE_MEDIA_PLAY: call {@link #onStart}</li>
* <li>KEYCODE_MEDIA_PAUSE: call {@link #onPause}</li>
* <li>KEYCODE_MEDIA_STOP: call {@link #onStop}</li>
* <li>KEYCODE_MEDIA_PLAY_PAUSE and KEYCODE_HEADSETHOOK: call {@link #onPause}
* if {@link #onIsPlaying()} returns true, otherwise call {@link #onStart}</li>
* </ul>
* @param keyCode The code of the media key.
* @param event The full key event.
* @return Indicate whether the key has been consumed. The default
* implementation always returns true. This only matters for keys
* being dispatched here from
* {@link TransportMediator#dispatchKeyEvent(android.view.KeyEvent)
* TransportController.dispatchKeyEvent}, and determines whether the key
* continues on to its default key handling (which for media keys means
* being delivered to the current media remote control, which should
* be us).
*/
public boolean onMediaButtonDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case TransportMediator.KEYCODE_MEDIA_PLAY:
onStart();
return true;
case TransportMediator.KEYCODE_MEDIA_PAUSE:
onPause();
return true;
case KeyEvent.KEYCODE_MEDIA_STOP:
onStop();
return true;
case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
case KeyEvent.KEYCODE_HEADSETHOOK:
if (onIsPlaying()) {
onPause();
} else {
onStart();
}
}
return true;
}
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
boolean isKeyCodeSupported = keyCode != KeyEvent.KEYCODE_BACK &&
keyCode != KeyEvent.KEYCODE_VOLUME_UP &&
keyCode != KeyEvent.KEYCODE_VOLUME_DOWN &&
keyCode != KeyEvent.KEYCODE_VOLUME_MUTE &&
keyCode != KeyEvent.KEYCODE_CALL &&
keyCode != KeyEvent.KEYCODE_MENU &&
keyCode != KeyEvent.KEYCODE_SEARCH &&
keyCode != KeyEvent.KEYCODE_ENDCALL;
if (isInPlaybackState() && isKeyCodeSupported && mControls != null) {
if (keyCode == KeyEvent.KEYCODE_HEADSETHOOK ||
keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE) {
if (isPlaying()) {
pause();
mControls.show();
} else {
start();
mControls.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_PLAY) {
if (!isPlaying()) {
start();
mControls.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP
|| keyCode == KeyEvent.KEYCODE_MEDIA_PAUSE) {
if (isPlaying()) {
pause();
mControls.show();
}
return true;
} else {
toggleMediaControlsVisiblity();
}
} else if (keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_UP) {
exitFullscreen(false);
return true;
} else if (keyCode == KeyEvent.KEYCODE_MENU || keyCode == KeyEvent.KEYCODE_SEARCH) {
return true;
}
return super.onKeyDown(keyCode, event);
}
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
int keyCode = event.getKeyCode();
final boolean uniqueDown = event.getRepeatCount() == 0
&& event.getAction() == KeyEvent.ACTION_DOWN;
if (keyCode == KeyEvent.KEYCODE_HEADSETHOOK
|| keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE
|| keyCode == KeyEvent.KEYCODE_SPACE) {
if (uniqueDown) {
doPauseResume();
show(sDefaultTimeout);
if (mTurnButton != null) {
mTurnButton.requestFocus();
}
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_PLAY) {
if (uniqueDown && !mPlayer.isPlaying()) {
mPlayer.start();
updatePausePlay();
show(sDefaultTimeout);
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP
|| keyCode == KeyEvent.KEYCODE_MEDIA_PAUSE) {
if (uniqueDown && mPlayer.isPlaying()) {
mPlayer.pause();
updatePausePlay();
show(sDefaultTimeout);
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN
|| keyCode == KeyEvent.KEYCODE_VOLUME_UP
|| keyCode == KeyEvent.KEYCODE_VOLUME_MUTE
|| keyCode == KeyEvent.KEYCODE_CAMERA) {
// don't show the controls for volume adjustment
return super.dispatchKeyEvent(event);
} else if (keyCode == KeyEvent.KEYCODE_BACK || keyCode == KeyEvent.KEYCODE_MENU) {
if (uniqueDown) {
hide();
}
return true;
}
show(sDefaultTimeout);
return super.dispatchKeyEvent(event);
}
public static boolean handleIntent(final Context context, final Intent intent) {
final String intentAction = intent.getAction();
if (Intent.ACTION_MEDIA_BUTTON.equals(intentAction)) {
final KeyEvent event = intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
if (event == null) {
return false;
}
final int keycode = event.getKeyCode();
final int action = event.getAction();
final long eventTime = event.getEventTime() != 0 ?
event.getEventTime() : System.currentTimeMillis();
// Fallback to system time if event time was not available.
String command = null;
switch (keycode) {
case KeyEvent.KEYCODE_MEDIA_STOP:
command = MusicService.ACTION_STOP;
break;
case KeyEvent.KEYCODE_HEADSETHOOK:
case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
command = MusicService.ACTION_TOGGLE_PAUSE;
break;
case KeyEvent.KEYCODE_MEDIA_NEXT:
command = MusicService.ACTION_SKIP;
break;
case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
command = MusicService.ACTION_REWIND;
break;
case KeyEvent.KEYCODE_MEDIA_PAUSE:
command = MusicService.ACTION_PAUSE;
break;
case KeyEvent.KEYCODE_MEDIA_PLAY:
command = MusicService.ACTION_PLAY;
break;
}
if (command != null) {
if (action == KeyEvent.ACTION_DOWN) {
if (event.getRepeatCount() == 0) {
// Only consider the first event in a sequence, not the repeat events,
// so that we don't trigger in cases where the first event went to
// a different app (e.g. when the user ends a phone call by
// long pressing the headset button)
// The service may or may not be running, but we need to send it
// a command.
if (keycode == KeyEvent.KEYCODE_HEADSETHOOK || keycode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE) {
if (eventTime - mLastClickTime >= DOUBLE_CLICK) {
mClickCounter = 0;
}
mClickCounter++;
if (DEBUG) Log.v(TAG, "Got headset click, count = " + mClickCounter);
mHandler.removeMessages(MSG_HEADSET_DOUBLE_CLICK_TIMEOUT);
Message msg = mHandler.obtainMessage(
MSG_HEADSET_DOUBLE_CLICK_TIMEOUT, mClickCounter, 0, context);
long delay = mClickCounter < 3 ? DOUBLE_CLICK : 0;
if (mClickCounter >= 3) {
mClickCounter = 0;
}
mLastClickTime = eventTime;
acquireWakeLockAndSendMessage(context, msg, delay);
} else {
startService(context, command);
}
return true;
}
}
}
}
return false;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
boolean isKeyCodeSupported = keyCode != KeyEvent.KEYCODE_BACK &&
keyCode != KeyEvent.KEYCODE_VOLUME_UP &&
keyCode != KeyEvent.KEYCODE_VOLUME_DOWN &&
keyCode != KeyEvent.KEYCODE_VOLUME_MUTE &&
keyCode != KeyEvent.KEYCODE_MENU &&
keyCode != KeyEvent.KEYCODE_CALL &&
keyCode != KeyEvent.KEYCODE_ENDCALL;
if (isInPlaybackState() && isKeyCodeSupported && mMediaController != null) {
if (keyCode == KeyEvent.KEYCODE_HEADSETHOOK ||
keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
} else {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_PLAY) {
if (!mMediaPlayer.isPlaying()) {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP
|| keyCode == KeyEvent.KEYCODE_MEDIA_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
}
return true;
} else {
toggleMediaControlsVisiblity();
}
}
return super.onKeyDown(keyCode, event);
}