MotionEvent中getX()和getRawX()的区别

    public class Res extends Activity implements View.OnTouchListener {    
        
        Button btn = null;    
        int x = 0;    
        int y = 0;    
        int rawx = 0;    
        int rawy = 0;    
            
        @Override    
        public void onCreate(Bundle savedInstanceState) {    
            super.onCreate(savedInstanceState);    
            setContentView(R.layout.main);    
            btn = (Button) findViewById(R.id.button);    
            btn.setOnTouchListener(this);    
        }    
        
        public boolean onTouch(View view, MotionEvent event) {    
            int eventaction = event.getAction();    
            switch (eventaction) {    
            case MotionEvent.ACTION_DOWN:    
                break;    
            case MotionEvent.ACTION_MOVE:    
                x = (int) event.getX();    
                y = (int) event.getY();    
                rawx = (int) event.getRawX();    
                rawy = (int) event.getRawY();    
                Log.d("DEBUG", "getX=" + x + "getY=" + y + "n" + "getRawX=" + rawx  + "getRawY=" + rawy + "n");    
                break;    
        
            case MotionEvent.ACTION_UP:    
                break;    
            }    
            return false;    
        }    
    }