Flutter之Wrap

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

class WrapWidget extends StatefulWidget {
  final String title;

  const WrapWidget({Key key, this.title}) : super(key: key);

  @override
  State<StatefulWidget> createState() {
    return _WrapWidgetState();
  }
}

class _WrapWidgetState extends State<WrapWidget> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('wrap'),
      ),
      body: Column(
        children: <Widget>[
          Wrap(
            spacing: 4.0,
            runSpacing: 4.0,
            children: <Widget>[
              Container(
                width: 100,
                height: 100,
                color: Colors.blue,
              ),
              Container(
                width: 100,
                height: 100,
                color: Colors.blue,
              ),
              Container(
                width: 100,
                height: 100,
                color: Colors.blue,
              ),
              Container(
                width: 100,
                height: 100,
                color: Colors.blue,
              ),
              Container(
                width: 100,
                height: 100,
                color: Colors.blue,
              ),
              Container(
                width: 100,
                height: 100,
                color: Colors.blue,
              ),
              Container(
                width: 100,
                height: 100,
                color: Colors.blue,
              ),
              Container(
                width: 100,
                height: 100,
                color: Colors.blue,
              ),
            ],
          ),
        ],
      ),
    );
  }
}