小编Ken*_*ers的帖子

我的媒体播放器有问题,因为我在我的lg-smartphone上将我的android -version更新为5.0.2.

我有一个独立的课程来播放音乐

public class MediaPlayerService {

    public static MediaPlayer mediaPlayer;
    private static SoundPool soundPool;
    public static boolean isplayingAudio = false;
    static int soundID;

    public static enum State {
        Stopped, 
        Playing, 
    }

    static State mState = State.Stopped;

    public static void playAudioFromMediaPlayer(Context c) {

        mediaPlayer = new MediaPlayer();
        mediaPlayer = MediaPlayer.create(c, R.raw.hooray);
        if (!mState.equals(State.Stopped)) {
                mediaPlayer.start();
                mState = State.Playing;
        }
    }

    @SuppressWarnings("deprecation")
    public static void loadAudioFromSoundPool(Context c, int id) {

        soundPool = new SoundPool(4, AudioManager.STREAM_MUSIC, 100);   
        soundID = soundPool.load(c, SoundList.soundList.get(id), 1); …

我编写了一个使用谷歌地图api v2的Android应用程序.我想在模拟器上测试它,但为了显示地图它有一些问题.我用谷歌搜索并发现了我必须安装到软件包(vending.apk,android.gms.apk).我下载了包并安装了它.我不知道的是,安装的android.gms.apk不是最新的.当我在模拟器上运行应用程序时,它会显示一个按钮和一条消息:...更新Google Play服务.现在我找到了.gms.apk的最新版本.但我无法删除或更新模拟器上的谷歌播放服务,因为我从cmd成为以下消息:

有这些问题的解决方案吗？thx提前

我用swipeview构建了一个音乐播放器项目(2个片段).一个片段有开始按钮,当我点击开始按钮时,另一个片段显示歌曲的元数据信息以及搜索栏.我的问题是在播放时通过一首歌获得当前时间.

片段的代码看起来像这样:

public static class SongParameterFragment extends Fragment {

    public SeekBar seekBar;
    static int fragmentNR;
    public ImageView cover;
    public TextView songParameter, songDuration;
    runnableTimeline timelineMonitor;

    public SongParameterFragment(int position) {
        this.fragmentNR = position;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View v = inflater.inflate(com.example.swipeview3.R.layout.song_parameters, container, false);
        cover = (ImageView)v.findViewById(com.example.swipeview3.R.id.imageView1);
        songParameter = (TextView)v.findViewById(com.example.swipeview3.R.id.textView_SongParameter);
        songDuration  = (TextView)v.findViewById(com.example.swipeview3.R.id.textView_SongDuration);
        seekBar = (SeekBar)v.findViewById(com.example.swipeview3.R.id.seekBar);

        seekBar.setOnSeekBarChangeListener(seekBarChangeListener);

        timelineMonitor = new runnableTimeline();
        Thread thread = new Thread(timelineMonitor);
        thread.start();


        return v;
    }

    SeekBar.OnSeekBarChangeListener seekBarChangeListener = new OnSeekBarChangeListener() { …