flutter 缩放布局FittedBox

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    // TODO: implement build
    return MaterialApp(
      title: "FittedBox缩放布局",
      home: Scaffold(
          appBar: AppBar(
            title: Text('FittedBox缩放布局'),
          ),
          body: Container(
            color: Colors.grey,
            width: 250,
            height: 250,

            //缩放布局
            child: FittedBox(
              fit: BoxFit.contain,
              //对亲属性
              alignment: Alignment.topLeft,

              child: Container(
                color: Colors.lightBlue,
                child: Text('还有谁'),
              ),
            ),
          )),
    );
  }
}