MotionEvent中getX()和getRawX()的区别

首先我们通过一个button进行一下测试,可以知道:

public class Res extends Activity implements View.OnTouchListener {

Button btn = null;
int x = 0;
int y = 0;
int rawx = 0;
int rawy = 0;

/** Called when the activity is first created. */
@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;
}
}

getX()是表示Widget相对于自身左上角的x坐标,而getRawX()是表示相对于屏幕左上角的x坐标值(注意:这个屏幕左上角是手机屏幕左上角,不管activity是否有titleBar或是否全屏幕),getY(),getRawY()一样的道理

摘自：http://www.cnblogs.com/foura/articles/2016881.html