虽然手机静音,但声音通知

Question

我正在使用Android的NotificationManager创建通知.

是否有可能以这种方式"覆盖"手机的音量(静音)设置,通知的声音始终播放？

我需要这个的原因如下:通知非常重要,单靠振动可能还不够.必须提醒用户.因此,即使手机静音或音量很低,也应播放声音.

Answer 1

对的,这是可能的,

MediaPlayer mMediaPlayer;
Uri notification = null;
notification = RingtoneManager
                .getDefaultUri(RingtoneManager.TYPE_ALARM);

mMediaPlayer = new MediaPlayer();
        mMediaPlayer.setDataSource(ctx, notification);
        // mMediaPlayer = MediaPlayer.create(ctx, notification);
        final AudioManager audioManager = (AudioManager) ctx
                .getSystemService(Context.AUDIO_SERVICE);

        mMediaPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);

        mMediaPlayer.prepare();
        // mMediaPlayer.start();
        mMediaPlayer.setLooping(true);
        mMediaPlayer.setOnPreparedListener(new OnPreparedListener() {
            public void onPrepared(MediaPlayer arg0) {
                mMediaPlayer.seekTo(0);
                mMediaPlayer.start();

            }

        });