在执行录音操作时,我们希望可以将酷狗等后台播放的音乐停掉,在录音完成后再恢复播放,可以使用以下代码:
/**@param bMute 值为true时为关闭背景音乐。*/ @TargetApi(Build.VERSION_CODES.FROYO) public static boolean muteAudioFocus(Context context, boolean bMute) { if(context == null){ Log.d("ANDROID_LAB", "context is null."); return false; } if(!VersionUtils.isrFroyo()){ // 2.1以下的版本不支持下面的API:requestAudioFocus和abandonAudioFocus Log.d("ANDROID_LAB", "Android 2.1 and below can not stop music"); return false; } boolean bool = false; AudioManager am = (AudioManager)context.getSystemService(Context.AUDIO_SERVICE); if(bMute){ int result = am.requestAudioFocus(null,AudioManager.STREAM_MUSIC,AudioManager.AUDIOFOCUS_GAIN_TRANSIENT); bool = result == AudioManager.AUDIOFOCUS_REQUEST_GRANTED; }else{ int result = am.abandonAudioFocus(null); bool = result == AudioManager.AUDIOFOCUS_REQUEST_GRANTED; } Log.d("ANDROID_LAB", "pauseMusic bMute="+bMute +" result="+bool); return bool; }
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