短按耳机键暂停/播放FM功能的实现

[DESCRIPTION]


短按耳机键默认是暂停/播放音乐功能，按照如下的修改方式可以实现短按耳机键暂停/播放FM


[SOLUTION]


please delete your media button code, modify as below. Thanks:
1. AndroidMenifest.xml :
<receiver android:name=".FMRadioActivity$MediaButtonReceiver">
<intent-filter>
<action android:name="android.intent.action.MEDIA_BUTTON" />
</intent-filter>
</receiver>
2. FMRadioActivity.JAVA code:
public interface MediaButtonListener {
void onMediaButtonCall(Intent intent);
}
private MediaButtonListener mMediaButtonListener = new
MediaButtonListener() {
@Override
public void onMediaButtonCall(Intent intent) {
String action = intent.getAction();
LogUtils.d(TAG, "onMediaButtonCall.action:" + action);
KeyEvent event = (KeyEvent)
intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
LogUtils.d(TAG, "onMediaButtonCall.event:" + event);
if (Intent.ACTION_MEDIA_BUTTON.equals(action)) {
LogUtils.d(TAG, "--Mediareceiver.event.getKeyCode(): " +
event.getKeyCode());
LogUtils.d(TAG, "--Mediareceiver.event.getAction(): " +
event.getAction());
if (KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE == event.getKeyCode() &&
event.getAction() == KeyEvent.ACTION_UP) {
LogUtils.d(TAG, "--Mediareceiver.pause");
if (mIsPlaying) {
LogUtils.d(TAG, "onMediaButtonCall.power down fm");
refreshImageButton(false); refreshActionMenuItem(false);
refreshPopupMenuItem(false);
refreshActionMenuPower(false); exitService();
}
} else if (KeyEvent.KEYCODE_MEDIA_NEXT == event.getKeyCode() &&
event.getAction() == KeyEvent.ACTION_UP) {
if (mIsPlaying) {
LogUtils.d(TAG, "onMediaButtonCall.seek next station");
seekStation(mCurrentStation, true);
}
}
}
}
};
public static class MediaButtonReceiver extends BroadcastReceiver {
static MediaButtonListener mListener = null;
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (null != mListener) {
mListener.onMediaButtonCall(intent);
this.abortBroadcast();
}
}
public static void registerMediaButtonListener(MediaButtonListener
callback) {
mListener = callback;
}
}
onCreate method:
MediaButtonReceiver.registerMediaButtonListener(mMediaButtonListener);
ComponentName rec = new ComponentName(getPackageName(),
MediaButtonReceiver.class.getName());
mAudioManager.registerMediaButtonEventReceiver(rec);
powerupFM method:
mAudioManager.registerMediaButtonEventReceiver(new
ComponentName(this.getPackageName(),
MediaButtonReceiver.class.getName()));
exitService method:
mAudioManager.unregisterMediaButtonEventReceiver(new
ComponentName(this.getPackageName(),
MediaButtonReceiver.class.getName()));