MediaPlayerImpl.java 文件源码

public MediaPlayerImpl() {
    mMediaPlayer = new MediaPlayer();
    // set audio stream type
    mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
    mMediaPlayer.setOnBufferingUpdateListener(bufferingUpdateListener);
    mMediaPlayer.setOnErrorListener(errorListener);
    mMediaPlayer.setOnPreparedListener(preparedListener);
    mMediaPlayer.setOnCompletionListener(completionListener);
    mMediaPlayer.setOnSeekCompleteListener(seekCompleteListener);
    // 不同的音频源，此回调有的不回调！！！
    // mMediaPlayer.setOnInfoListener(infoListener);

    // 读取音量和静音的数据
    currentVolume = (float) MediaPlayerPreferenceUtil.get(context,
            KEY_SP_VOLUME, 0.8f);
    isMute = (boolean) MediaPlayerPreferenceUtil.get(context,
            KEY_SP_MUTE, false);
    // LinkedList
    mediaPlayerListeners = Collections.synchronizedList(new LinkedList<IMediaPlayer.IMediaPlayerListener>());
    posHandler = new PosHandler(Looper.getMainLooper());

    // 来电监听
    telephonyManager = (TelephonyManager)
            context.getSystemService(Service.TELEPHONY_SERVICE);
    telephonyManager.listen(phoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);
}