Notification播放apk中自带raw音频

2017年03月15日 · 121字 · 1分钟

本场景为自定义Notification的声音
根本解决方式是修改notification的sound

notification.sound =Uri sound;
//或者
NotificationCompat.Builder.setSound(Uri sound)

Uri的规范可以参考 http://www.ietf.org/rfc/rfc2396.txt 以下为示例

Uri sound=Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.notificationsound );  
//或者
Uri sound=Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + getPackageName() + "/raw/notificationsound"); 
//或者
Uri sound=Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + getPackageName() + "/"+R.raw.notificationsound); 
//或者从铃声管理器获取 
Uri sound= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);

也可以将一个无声音的音频文件指定给notification使其静音，然后启用MediaPlayer播放铃声。播放代码如下：

try {
  Context context = Application.getInstance();
  MediaPlayer mediaPlayer;
  if (rawId > 0) {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
            mediaPlayer = MediaPlayer.create(context, rawId);
		} else {
		  int sessionId = ((AudioManager) context.getSystemService(Context.AUDIO_SERVICE)).generateAudioSessionId();
		  AudioAttributes audioAttributes = new AudioAttributes.Builder()
				  .setUsage(AudioAttributes.USAGE_NOTIFICATION)
				  .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
				  .setLegacyStreamType(AudioManager.STREAM_NOTIFICATION)
				  .build();
		  mediaPlayer = MediaPlayer.create(context, rawId, audioAttributes, sessionId);
		}
    } else {
        mediaPlayer = MediaPlayer.create(context, RingtoneManager.getActualDefaultRingtoneUri(context, RingtoneManager.TYPE_NOTIFICATION));
    }
	 //使用MediaPlayer.create(context, R.raw.mingdao)这种方式创建的MediaPlayer已经prepare完成，且不能修改AudioStreamType
	 //mediaPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);  
	 mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
        @Override
		public void onCompletion(MediaPlayer mediaPlayer) {
            mediaPlayer.release();
	}
    });
	mediaPlayer.start();
} catch (Exception e) {
    e.printStackTrace();
}

Android