短按耳機鍵暫停/播放FM功能的實現

短按耳機鍵預設是暫停/播放音樂功能，按照如下的修改方式可以實現短按耳機鍵暫停/播放FM

 

 
please delete your media button code, modify as below:

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()));