Flutter笔记7：FittedBox内容填充

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'FittedBox',
      home: Scaffold(
        appBar: AppBar(title: Text('FittedBox')),
        body: Center(
          child: Column(
            children: [
              Container(
                width: 100,
                height: 100,
                child: FittedBox(
                  //内容填充模式，有点类似于背景图片的填充
                  fit: BoxFit.fill,
                  alignment: Alignment.center,
                  child: Container(
                    color: Colors.green,
                    child: Text(
                      'fill填充模式',
                      style: TextStyle(color: Colors.white),
                    ),
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}