前言
由于最近項目遇到，藍牙手表設備在不配對的情況下監聽按鍵給出相應的控制回應，所以研究了下
網上找了很多不過對于現在來說，很多手機設置沒有反應，這里給出一個比較統一的方法
項目需求如下圖：
項目需求
方法如下：
*這里主要是為了控制的實現其他的不多說，直接上代碼，只是記錄下以后也許還會用到
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private long eventtime = 0;private AudioManager vAudioManager = null; //此處在onCreate方法中初始化 eventtime = SystemClock.uptimeMillis();vAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);//這是播放或者暫停if (vAudioManager.isMusicActive()){ Toast.makeText(getApplicationContext(), "有音樂在播放---暫停", Toast.LENGTH_SHORT).show(); pauseMusic();//暫停}else { Toast.makeText(getApplicationContext(), "無音樂在播放--開始", Toast.LENGTH_SHORT).show(); playMusic();//播放} |
*主要控制代碼
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/** * 暫停 */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);} |
下面這個是控制系統媒體音量鍵的加減
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// 調低音量vAudioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC,AudioManager.ADJUST_LOWER, AudioManager.FLAG_SHOW_UI);// 調高音量vAudioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC,AudioManager.ADJUST_RAISE, AudioManager.FLAG_SHOW_UI); |
總結
以上就是這篇文章的全部內容了，希望本文的內容對大家的學習或者工作具有一定的參考學習價值，如果有疑問大家可以留言交流，謝謝大家對服務器之家的支持。
原文鏈接：https://www.jianshu.com/p/a1a5a02f7c5f
