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
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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
}
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*主要控制代码
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/**
* 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);
}
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下面这个是控制系统媒体音量键的加减
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// 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);
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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，谢谢大家对服务器之家的支持。
原文链接：https://www.jianshu.com/p/a1a5a02f7c5f