Android 播放声音

    public static void PlayAlarmRing(Context mContext) {

        Uri alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE);

        try {

            MediaPlayer mMediaPlayer = new MediaPlayer();

            mMediaPlayer.setDataSource(mContext, alert);

            final AudioManager audioManager = (AudioManager) mContext

                    .getSystemService(Context.AUDIO_SERVICE);

            if (audioManager.getStreamVolume(AudioManager.STREAM_ALARM) != 0) {

                mMediaPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);

                mMediaPlayer.setLooping(false);

                mMediaPlayer.prepare();

                mMediaPlayer.start();

            }

        } catch (IllegalStateException e) {

            e.printStackTrace();

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

　　无视手机的静音模式