Flutter——AspectRatio组件

import ‘package:flutter/material.dart‘;

void main() {
  runApp(MaterialApp(
    title: "AspectRatioWidget",
    home: MyApp(),
  ));
}


class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Center(
      child: Container(
        width: 200,
        color: Colors.redAccent,
        child: AspectRatio(
          aspectRatio: 2.0/1.0,
          child: Container(
            color: Colors.green,
          ),
        ),
      ),
    );
  }
}