[Android] 停止、恢複 背影音樂的播放

來源:互聯網
上載者:User

在執行錄音操作時,我們希望可以將酷狗等後台播放的音樂停掉,在錄音完成後再恢複播放,可以使用以下代碼:

/**@param bMute 值為true時為關閉背景音樂。*/@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以下的版本不支援下面的API:requestAudioFocus和abandonAudioFocusLog.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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