Android MotionEvent中getX()和getRawX()的區別

來自： http://www.jcodecraeer.com//a/anzhuokaifa/androidkaifa/2014/0730/1637.html

RawX,RawY 相對于屏幕位置坐標
X,Y 相對于容器的位置坐標

測試代碼：

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;
}
}