dart - FlutterLogo 可以拉伸(stretch)填充吗？

Question

我想在我的应用程序中显示一个大的 FlutterLogo:
https://docs.flutter.io/flutter/material/FlutterLogo-class.html

为了考虑不同的屏幕尺寸，我想让它拉伸(stretch)填充。那可能吗？还是我需要使用 MediaQuery 来确定父级的大小并将其传递给 FlutterLogo(size:)？

我当前的代码:

  Widget build(BuildContext context) {
    return new Center(
      child: new FlutterLogo(size: 800.0, style: FlutterLogoStyle.horizontal, textColor: Colors.white),
    );
  }

Answer 1

您可以使用 ConstrainedBox 来完成此操作。 :

import 'package:flutter/material.dart';

void main() {
  runApp(new MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      theme: new ThemeData.dark(),
      home: new MyHomePage(),
    );
  }
}

class MyHomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      appBar: new AppBar(title: new Text('Example App')),
      body: new ConstrainedBox(
        constraints: new BoxConstraints.expand(),
        child: new FlutterLogo(
          style: FlutterLogoStyle.horizontal,
          textColor: Colors.white,
        ),
      ),
    );
  }
}