5.6 容器类组件 - FittedBox

1. FittedBox

FittedBox是一个用于调整子元素大小和形状以适应其父容器的Box Widget，它可以将子容器的大小和形状根据需要进行缩放或裁剪，以适应其父容器的大小和形状

const FittedBox({
  super.key,
  this.fit = BoxFit.contain, // 适配方式
  this.alignment = Alignment.center, // 对齐方式
  this.clipBehavior = Clip.none, // 是否剪裁
  super.child,
});

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        children: [
          wRow(' 90000000000000001 '),
          FittedBox(child: wRow(' 90000000000000000001 ')),
          wRow(' 801 '),
          FittedBox(child: wRow(' 801 '),)
        ],
      ),
    );
  }
  
  Widget wRow(String text) {
    Widget child = Text(text);
    child = Row(
      mainAxisAlignment: MainAxisAlignment.spaceEvenly,
      children: [
        child,
        child,
        child
      ],
    );
    return child;
  }