Android MediaPlayer 실행 시간을 사용하여 실시간 빨리 감기 및 되감기 버튼 구현

Question

나는 도움이 필요했으나 명확한 지침을 찾지 못했습니다. 현재 노래를 빨리 감기 및 되감기 할 버튼을 만드는 법.

Answer 1

private Handler repeatUpdateHandler = new Handler(); 
public int mValue;   //increment 
private boolean mAutoIncrement = false;   //for fast foward in real time 
private boolean mAutoDecrement = false;   // for rewind in real time 



private class RptUpdater implements Runnable { 
     public void run() { 
      if(mAutoIncrement){ 
       mValue += 30; //change this value to control how much to forward 
       mediaPlayer.seekTo(getCurrentPosition()+ mValue); 
       repeatUpdateHandler.postDelayed(new RptUpdater(), 50); 
      } else if(mAutoDecrement){ 
       mValue -= 30; //change this value to control how much to rewind 
       seekTo(getCurrentPosition()- mValue); 
       repeatUpdateHandler.postDelayed(new RptUpdater(), 50); 
      } 
     } 
    } 



btnPrev.setOnTouchListener(new View.OnTouchListener() { 
      @Override 
      public boolean onTouch(View v, MotionEvent event) { 
       if(event.getAction() == MotionEvent.ACTION_DOWN) { 
        v.setPressed(true); 
        mAutoDecrement = true; 
        repeatUpdateHandler.post(new RptUpdater()); 
        return false; 
       } 
       else if(event.getAction() == MotionEvent.ACTION_UP) { 
        v.setPressed(false); 
        if((event.getAction()==MotionEvent.ACTION_UP || event.getAction()==MotionEvent.ACTION_CANCEL) 
          && mAutoDecrement){ 
         mAutoDecrement = false; 
        } 
        return false; 
       } 
       return false; 
      } 
     }); 

btnNext.setOnTouchListener(new View.OnTouchListener() { 
      @Override 
      public boolean onTouch(View v, MotionEvent event) { 
       if(event.getAction() == MotionEvent.ACTION_DOWN) { 
        v.setPressed(true); 
        mAutoIncrement = true; 
        repeatUpdateHandler.post(new RptUpdater()); 
        return false; 
       } 
       else if(event.getAction() == MotionEvent.ACTION_UP) { 
        v.setPressed(false); 
        if((event.getAction()==MotionEvent.ACTION_UP || event.getAction()==MotionEvent.ACTION_CANCEL) 
          && mAutoIncrement){ 
         mAutoIncrement = false; 
        } 
        return false; 
       } 

       return false; 
      } 
     });