wrap_page.dart

import 'package:flutter/material.dart';

class WrapPage extends StatefulWidget {
  @override
  _WrapPageState createState() => _WrapPageState();
}

class _WrapPageState extends State<WrapPage> {

  final List<String> _list = List<String>.generate(10, (i) => 'chip$i');

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: Text('WrapPage'),
        ),
        body: Wrap(
            spacing: 10,
            runSpacing: 5,
            children: _list.map<Widget>((s) {
              return Chip(
                label: Text('$s'),
                avatar: Icon(Icons.person),
                deleteIcon: Icon(
                  Icons.close,
                  color: Colors.red,
                ),
                onDeleted: () {
                  setState(() {
                    _list.remove(s);
                  });
                },
              );
            }).toList()
        ));
  }
}