Seekbar不会从被用户拖拽的地方进行播放

Question

虽然我已经添加了每个必需的代码以使其工作，但我的seekbar thumb问题。仍然seekbar拇指不从用户拖动的点播放。相反，大拇指把自己放回到最后一次播放的位置。任何帮助将不胜感激。

plus = (ImageButton) findViewById(R.id.imageButton2); 
    minus = (ImageButton) findViewById(R.id.imageButton4); 


    player = MediaPlayer.create(this, R.raw.songnames); 


    player.setLooping(false); 
    im = (ImageButton) this.findViewById(R.id.imageButton3); 


    seekbar = (SeekBar) findViewById(R.id.mantraProgressBar); 
    seekbar.setVisibility(ProgressBar.VISIBLE); 
    seekbar.setProgress(0); 
    seekbar.setMax(player.getDuration()); 
    new Thread(this).start(); 


    im.setOnClickListener(this); 
    player.start(); 
    im.setImageResource(R.drawable.pause_tran); 

    Toast.makeText(this, isPlaying, Toast.LENGTH_LONG).show(); 


    plus.setOnClickListener(new OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      int cu = player.getCurrentPosition(); 
      player.seekTo(cu - 5000); 
     } 
    }); 
    minus.setOnClickListener(new OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      int cu = player.getCurrentPosition(); 
      player.seekTo(cu + 5000); 
     } 
    }); 


} 


@Override 
public void onClick(View arg0) { 
    if (arg0.getId() == R.id.imageButton3) { 
     if (player.isPlaying()) { 
      player.pause(); 

      Toast.makeText(this, notPlaying, Toast.LENGTH_LONG).show(); 
      ImageButton img1 = (ImageButton) this.findViewById(R.id.imageButton3); 

      img1.setImageResource(R.drawable.play_tran); 

     } else { 
      player.start(); 
      Toast.makeText(this, isPlaying, Toast.LENGTH_LONG).show(); 

      ImageButton img1 = (ImageButton) this.findViewById(R.id.imageButton3); 
      img1.setImageResource(R.drawable.pause_tran); 
     } 
    } 
} 

@Override 
public void run() { 
    int currentPosition = 0; 
    String s; 
    int total = player.getDuration(); 
    while (player != null && currentPosition < total) { 
     try { 
      Thread.sleep(1000); 
      currentPosition = player.getCurrentPosition(); 
     } catch (InterruptedException e) { 
      return; 
     } catch (Exception e) { 
      return; 
     } 

     seekbar.setProgress(currentPosition); 


    } 


} 
@Override 
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { 
    if (fromUser) { 
     player.seekTo(progress); 
     seekbar.setProgress(progress); 
    } 
} 

@Override 
public void onStartTrackingTouch(SeekBar seekBar) { 

} 

@Override 
public void onStopTrackingTouch(SeekBar seekBar) { 

} 
} 

Answer 1

公共类MainActivity扩展AppCompatActivity {

private MyVideoView mVV; 
private Handler mhandler; 
private SeekBar seekbar; 
private int duration; 
private int backPositon = 0; 
private int currentPosition; 
private SharedPreferences sp; 
private MediaController controller; 
private TextView tv_curr; 
private TextView tv_duration; 
private Handler handler; 
private boolean mExit; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    mVV = (MyVideoView) findViewById(R.id.vv); 
    seekbar = (SeekBar) findViewById(R.id.seekbar); 
    tv_curr = (TextView) findViewById(R.id.tv_currtime); 
    tv_duration = (TextView) findViewById(R.id.tv_duration); 

    //get duration of video 
    getDuration(); 
    //video start 
    playVideo(); 
    //get current time 
    getCurrentDuration(); 
    //listener 
    initEvent(); 

} 

private void initHanlder() { 
    handler=new Handler(){ 
     @Override 
     public void handleMessage(Message msg) { 
      if (msg.what==0x123){ 
       tv_curr.setText(timeFormat(mVV.getCurrentPosition())); 
       seekbar.setProgress(mVV.getCurrentPosition()); 
      } 

      if(msg.what==0x133){ 
       int changedProgress = msg.arg1; 
       tv_curr.setText(timeFormat(changedProgress)); 
       mVV.seekTo(changedProgress); 
       seekbar.setProgress(changedProgress); 
       mVV.start(); 
      } 
     } 
    }; 

    new Thread(new Runnable() { 
     @Override 
     public void run() { 
      while (mVV.getCurrentPosition()<duration){ 
       Message message = Message.obtain(); 
       message.what=0x123; 
       handler.sendMessage(message); 
       SystemClock.sleep(1000); 

       if(mExit){ 
        break; 
       } 
      } 

     } 
    }).start(); 

} 


private void getDuration() { 
    mVV.setOnPreparedListener(new MediaPlayer.OnPreparedListener() { 
     @Override 
     public void onPrepared(MediaPlayer mp) { 
      duration = mVV.getDuration(); 
      timeFormat(duration); 
      Log.d("TAG", "---duration" + timeFormat(duration)); 
      seekbar.setMax(duration); 
      //TextView time 
      tv_duration.setText(timeFormat(duration)); 
      //init handler 
      initHanlder(); 
     } 
    }); 
} 

private String timeFormat(int time) { 
    StringBuilder mFormatBuilder; 
    Formatter mFormatter; 
    mFormatBuilder = new StringBuilder(); 
    mFormatter = new Formatter(mFormatBuilder, Locale.getDefault()); 
    int totalSeconds = time/1000; 

    int seconds = totalSeconds % 60; 
    int minutes = (totalSeconds/60) % 60; 
    int hours = totalSeconds/3600; 

    mFormatBuilder.setLength(0); 
    if (hours > 0) { 
     return mFormatter.format("%d:%02d:%02d", hours, minutes, seconds).toString(); 
    } else { 
     return mFormatter.format("%02d:%02d", minutes, seconds).toString(); 
    } 

} 

private void playVideo() { 
    File file = new File(Environment.getExternalStorageDirectory(), "cgx_video/db.mp4"); 
    if (!file.exists()) { 
     file.mkdir(); 
    } 
    Log.d("TAG", file.toString()); 
    mVV.setVideoPath(file.getPath()); 
    mVV.start(); 

} 


private void initEvent() { 
    seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { 
     @Override 
     public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { 
      currentPosition=progress; 


     } 

     @Override 
     public void onStartTrackingTouch(SeekBar seekBar) { 
      mVV.pause(); 


     } 

     @Override 
     public void onStopTrackingTouch(SeekBar seekBar) { 
      if(handler!=null){ 
       Message message = Message.obtain(); 
       message.what=0x133; 
       message.arg1=currentPosition; 
       handler.sendMessage(message); 
      } 


     } 
    }); 


} 


@Override 
protected void onPause() { 
    super.onPause(); 
    Log.d("TAG", "---onPause"); 
    mVV.pause(); 
    backPositon = mVV.getCurrentPosition(); 
    Log.d("TAG", "backPositon:" + backPositon); 

} 

@Override 
protected void onStop() { 
    super.onStop(); 
    Log.d("TAG", "---onStop"); 

} 

@Override 
protected void onResume() { 
    super.onResume(); 
    Log.d("TAG", backPositon + "---backPositon"); 
    mVV.seekTo(backPositon); 
    mVV.start(); 
} 

@Override 
protected void onDestroy() { 
    //in case of leak of memeroy 
    mExit=true; 
    super.onDestroy(); 

} 

}