java - 如何检索按钮位置？

Question

我创建了一个相对布局，当我触摸按钮时它会改变它的位置。使用 OnTouchListener。但我希望当我释放按钮(ACTION_UP)时，它会在此操作之前到达它自己的位置。有人可以帮我吗？

我的代码:(在“创建”中)

...

this.relative_layout.setOnTouchListener(new OnTouchListener()
            {

            @Override
            public boolean onTouch(View view, MotionEvent event)
            {
                // TODO: Implement this method
                if(event.getAction() == event.ACTION_MOVE)
                {
                    float x = event.getX();
                    float y = event.getY();
                    my_button.setX(x);
                    my_button.setY(y);
                } else if(event.getAction() == event.ACTION_UP)
                /* here's the issue that I'm
                 * asking for help about
                 * What to do to return the button position back
                 * Like it was? */
                    return true;
            }

        });

Answer 1

根据文档，setX 的作用是:

Sets the visual x position of this view, in pixels. This is equivalent to setting the translationX property to be the difference between the x value passed in and the current left property.

因此，要扭转这种情况，请使用 setTranslationX(0);

Y 也是如此 - setTranslationY(0);