如何在滑動圖像時拉伸圖像

Question

我設法檢測到何時滑動某個圖像。現在，我希望圖像在用戶滑動圖像時「拉伸」（如解鎖手機）。任何方式我可以做到這一點？

image.setOnTouchListener(gestureListener); 

} 


class MyGestureDetector extends SimpleOnGestureListener 
{ 
    @Override 
    public boolean onDown(MotionEvent e) 
    { 
     // TODO Auto-generated method stub 
     //return super.onDown(e); 
     return true; 
    } 

    @Override 
    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 
     try { 
      if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH) 
       return false; 
      // right to left swipe 
      if(e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) 
      { 
       Toast.makeText(Swipe2Activity.this, "Left Swipe", Toast.LENGTH_SHORT).show(); 

      } 
      else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) 
      { 
       Toast.makeText(Swipe2Activity.this, "Right Swipe", Toast.LENGTH_SHORT).show(); 

      } 
     } 
     catch (Exception e) 
     { 
      // nothing 
     } 
     return false; 
    } 

}

Answer 1

應用矩陣變換。

下面是索尼非常好的教程：http://developer.sonymobile.com/wp/2011/06/27/how-to-scale-images-for-your-android%E2%84%A2-application/