Android MotionEvent中getX()和getRawX()的区别实例详解

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;  
  }  
}