RectGetter.defaultKey constructor

RectGetter.defaultKey({
  1. required Widget child,
})

生成默认GlobalKey的命名无参构造，调用对象的getRect方法获得Rect Use defaultKey to build RectGetter , and then use object itselfs getRect() method to get childs rect

Implementation

factory RectGetter.defaultKey({required Widget child}) {
  return new RectGetter(
    key: new GlobalKey(),
    child: child,
  );
}