Android 短按耳机键暂停/播放FM功能的实现

来源：互联网发布：网络视频会议系统编辑：程序博客网时间：2024/05/19 02:17

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正文

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

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()));   <receiver android:name=".FMRadioActivity$MediaButtonReceiver" >            <intent-filter>                <action android:name="android.intent.action.MEDIA_BUTTON" />            </intent-filter>        </receiver>