Column 垂直布局

main.dart

import 'package:flutter/material.dart';

void main() {
  runApp(MaterialApp(
    title: "Column 垂直布局",
    home: LayoutDemo(),
  ));
}

class LayoutDemo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Column 垂直布局"),
      ),
      body: Column(
        children: <Widget>[
          Text("Flutter"),
          Text("垂直布局"),
          Expanded(
            child: FittedBox(
              fit: BoxFit.contain,
              child: FlutterLogo(),
            ),
          )
        ],
      ),
    );
  }
}