Flutter获取全局MediaQuery.of(上下文).size.width和height的最佳方法

import 'package:flutter/material.dart';

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return LayoutBuilder(
      builder: (BuildContext context, BoxConstraints constraints) {
        double screenWidth = constraints.maxWidth;
        double screenHeight = constraints.maxHeight;

        // 在这里可以使用获取到的屏幕尺寸进行布局和逻辑处理
        // ...

        return Container(
          // ...
        );
      },
    );
  }
}