创建一个名称列表，包含收藏功能

main.dart

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

void main() => runApp(new MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: 'Startup name',
      theme: new ThemeData(
        primaryColor: Colors.white,
      ),
      home: new RandomWords(),
    );
  }
}

// 创建一个 StatefulWidget 组件
class RandomWords extends StatefulWidget {
  @override
  RandomWordsState createState() => new RandomWordsState();
}

class RandomWordsState extends State<RandomWords> {
  final List<WordPair> _suggestions = <WordPair>[];
  final Set<WordPair> _save = new Set<WordPair>();
  final TextStyle _biggerFont = const TextStyle(fontSize: 18.0);

  // 点击添加心形 ❤️ 图标
  void _pushSaved() {
    Navigator.of(context).push(
      new MaterialPageRoute<void>(
        builder: (BuildContext context) {
          final Iterable<ListTile> tiles = _save.map(
            (WordPair pair) {
              return new ListTile(
                  title: new Text(
                pair.asPascalCase,
                style: _biggerFont,
              ));
            },
          );
          final List<Widget> divided =
              ListTile.divideTiles(tiles: tiles, context: context).toList();
          return new Scaffold(
            appBar: new AppBar(
              title: const Text('saved Suggestions'),
            ),
            body: new ListView(
              children: divided,
            ),
          );
        },
      ),
    );
  }

  Widget build(BuildContext context) {
    return new Scaffold(
      appBar: new AppBar(
        title: new Text('Startup Name Generator'),
        actions: <Widget>[
          new IconButton(icon: const Icon(Icons.list), onPressed: _pushSaved),
        ],
      ),
      body: _buildSuggestions(),
    );
  }

  Widget _buildSuggestions() {
    return new ListView.builder(
        padding: const EdgeInsets.all(6.0),
        itemBuilder: (BuildContext _context, int i) {
          if (i.isOdd) {
            return new Divider();
          }
          final int index = i ~/ 2;

          if (index >= _suggestions.length) {
            _suggestions.addAll(generateWordPairs().take(10));
          }
          return _buildRow(_suggestions[index]);
        });
  }

  Widget _buildRow(WordPair pair) {
    final bool alreadySaved = _save.contains(pair);
    return new ListTile(
      title: new Text(
        pair.asPascalCase,
        style: _biggerFont,
      ),
      trailing: new Icon(
        alreadySaved ? Icons.favorite : Icons.favorite_border,
        color: alreadySaved ? Colors.red : null,
      ),
      onTap: () {
        setState(() {
          if (alreadySaved) {
            _save.remove(pair);
          } else {
            _save.add(pair);
          }
        });
      },
    );
  }
}

pubspec.yaml

name: startup_namer
description: A new Flutter application.

version: 1.0.0+1

environment:
  sdk: ">=2.1.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter

  cupertino_icons: ^0.1.2
  english_words: ^3.1.0

dev_dependencies:
  flutter_test:
    sdk: flutter

flutter:
  uses-material-design: true