Android用代码控制设备上其他音乐播放器 Android利用代码控制设备上其他音乐播放器的方法

时间:2021-03-31 一s独秀人气:0

前言

由于最近项目遇到，蓝牙手表设备在不配对的情况下监听按键给出相应的控制回应，所以研究了下

网上找了很多不过对于现在来说，很多手机设置没有反应，这里给出一个比较统一的方法

项目需求如下图：

项目需求

方法如下：

*这里主要是为了控制的实现其他的不多说，直接上代码，只是记录下以后也许还会用到

 private long eventtime = 0;
 private AudioManager vAudioManager = null; 
 //此处在onCreate方法中初始化 
 eventtime = SystemClock.uptimeMillis();
 vAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);


 //这是播放或者暂停
 if (vAudioManager.isMusicActive()){
  Toast.makeText(getApplicationContext(), "有音乐在播放---暂停", Toast.LENGTH_SHORT).show();
  pauseMusic();//暂停
 }else {
  Toast.makeText(getApplicationContext(), "无音乐在播放--开始", Toast.LENGTH_SHORT).show();
  playMusic();//播放
 }

*主要控制代码

 /**
 * 暂停
 */
private void pauseMusic() {
 if (eventtime<=0)return;
 Intent downIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
 KeyEvent downEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_PAUSE, 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_PAUSE, 0);
 upIntent.putExtra(Intent.EXTRA_KEY_EVENT, upEvent);
 sendOrderedBroadcast(upIntent, null);
}

/**
 * 播放
 */
private void playMusic() {
 if (eventtime<=0)return;
 Intent downIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
 KeyEvent downEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_PLAY, 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_PLAY, 0);
 upIntent.putExtra(Intent.EXTRA_KEY_EVENT, upEvent);
 sendOrderedBroadcast(upIntent, null);
}


/**
 * 上一曲
 */
private void lastMusic() {
 if (eventtime<=0)return;
 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);
}

/**
 * 下一曲
 */
private void nextMusic() {
 if (eventtime<=0)return;
 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);
}

下面这个是控制系统媒体音量键的加减

 // 调低音量
 vAudioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC,AudioManager.ADJUST_LOWER, AudioManager.FLAG_SHOW_UI);

 // 调高音量
 vAudioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC,AudioManager.ADJUST_RAISE, AudioManager.FLAG_SHOW_UI);

总结

以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，如果有疑问大家可以留言交流，谢谢大家对的支持。

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