如何添加MotionEvent的参数

Question

我已经编写了一些代码来从ImageView获取位置。以下是我的代码：

private void touchLocation(MotionEvent e){
float x = e.getX();
float y = e.getY();

String message = "Location is x = " + x + ", y = " + y ".";

Context context = getApplicationContext();
int duration = Toast.LENGTH_LONG:

Toast toast = Toast.makeText(context, message, duration);
toast.show();

}

在onCreate（）方法中，我该如何调用此函数？任何建议都非常感谢。如何使用MotionEvent类实例化对象？

Answer 1

imageView.setOnTouchListener(new OnTouchListener(){

   @Override
   public boolean onTouch(View v, MotionEvent e) {

     float x = e.getX();
     float y = e.getY();

     String message = "Location is x = " + x + ", y = " + y ".";

     // more code

     return true;
     }
 });