获取手机提示音列表

 private void getRing() {
        // 获得RingtoneManager对象
        RingtoneManager manager = new RingtoneManager(this);
        // 设置RingtoneManager对象的类型为TYPE_NOTIFICATION，这样只会获取到notification的对应内容
        manager.setType(RingtoneManager.TYPE_NOTIFICATION);
        Cursor cursor = manager.getCursor();
        int num = cursor.getCount();
        LogUtils.d("tag", num + "消息音个数");
        // 存储消息音名字的arrayList
        ArrayList<Ringtone> ringtoneList = new ArrayList<>();
        for (int i = 0; i < num; i++) {
            //获取当前i的铃声信息
            Ringtone ringtone = manager.getRingtone(i);
            //获取当前i的uri，设置notification的自定义铃声要用到
            Uri uri = manager.getRingtoneUri(i);
            //获取到当前铃声的名字
            String title = ringtone.getTitle(this);
            ringtoneList.add(ringtone);
            LogUtils.d(uri + title);

        }
        ringtoneList.get(1).play();

    }