使用Broadcast控制播放器，新方法…

最新推荐文章于 2021-03-15 14:41:11 发布

bingo_1214

最新推荐文章于 2021-03-15 14:41:11 发布

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本文链接：https://blog.youkuaiyun.com/bingo_1214/article/details/45028515

本文介绍了如何通过不同方法控制Android设备上的音乐播放器，包括发送Broadcast及使用AudioManager API等，适用于不同API版本。


之前通过Broadcast控制播放器的方法是：


   private void pauseMusic() {


                Intent freshIntent = new Intent();


         freshIntent.setAction("com.android.music.musicservicecommand.pause");


              freshIntent.putExtra("command", "pause");


          sendBroadcast(freshIntent);


经过我测试，无效了。API-18，4.3。


以下是新方法：


AudioManager mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

if(mAudioManager.isMusicActive()) {


        Intent i = new Intent(SERVICECMD);
    i.putExtra(CMDNAME , CMDSTOP );


   YourApplicationClass.this.sendBroadcast(i);


以下是命令：


public static final String CMDTOGGLEPAUSE = "togglepause";


public static final String CMDPAUSE = "pause";


public static final String CMDPREVIOUS = "previous";


public static final String CMDNEXT = "next";


public static final String SERVICECMD = "com.android.music.musicservicecommand";


public static final String CMDNAME = "command";


public static final String CMDSTOP = "stop";


===========如果以上还是不行，看下面========================


以下方法适合所有播放器


long eventtime = SystemClock.uptimeMillis();


//播放+暂停


Intent downIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);


KeyEvent downEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE, 0);


downIntent.putExtra(Intent.EXTRA_KEY_EVENT, downEvent);


sendOrderedBroadcast(downIntent, null);


//这个upIntent要和上面的downIntent 一起使用，才能播放或者暂停，只用downIntent 会不停切换下一曲，必须重启手机。


Intent upIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);


KeyEvent upEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE, 0);


upIntent.putExtra(Intent.EXTRA_KEY_EVENT, upEvent);


sendOrderedBroadcast(upIntent, null);


// 下一曲，跟上面一样，downIntent 和upIntent 要同时用，只用down就变成快进。


Intent downIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);


KeyEvent downEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_DOWN,   KeyEvent.KEYCODE_MEDIA_NEXT, 0);


downIntent.putExtra(Intent.EXTRA_KEY_EVENT, downEvent);


sendOrderedBroadcast(downIntent, null);


Intent upIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);


KeyEvent upEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MEDIA_NEXT, 0);


upIntent.putExtra(Intent.EXTRA_KEY_EVENT, upEvent);


sendOrderedBroadcast(upIntent, null);


//上一曲，只用down就变成快退。


Intent downIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);


KeyEvent downEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_PREVIOUS, 0);


downIntent.putExtra(Intent.EXTRA_KEY_EVENT, downEvent);


sendOrderedBroadcast(downIntent, null);


Intent upIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);


KeyEvent upEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MEDIA_PREVIOUS, 0);


upIntent.putExtra(Intent.EXTRA_KEY_EVENT, upEvent);


sendOrderedBroadcast(upIntent, null);