Created
June 2, 2019 07:33
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flutter get started, part1 step4
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import 'package:flutter/material.dart'; | |
import 'package:english_words/english_words.dart'; | |
void main() => runApp(MyApp()); | |
class MyApp extends StatelessWidget { | |
@override | |
Widget build(BuildContext context) { | |
return MaterialApp( | |
// title: 'Welcome to Flutter', // 削除 | |
// home: Scaffold( // 削除 | |
title: 'Startup Name Generator', // 追加 | |
home: RandomWords(), // 追加 | |
// appBar: AppBar( // 削除 | |
// title: Text('Welcome to Flutter'), // 削除 | |
// ), | |
// body: Center( // 削除 | |
// // child: Text (wordPair.asPascalCase), // 削除 | |
// child: RandomWords(), // 削除 | |
// ), | |
// ), | |
); | |
} | |
} | |
class RandomWords extends StatefulWidget { | |
@override | |
RandomWordsState createState() => RandomWordsState(); | |
} | |
class RandomWordsState extends State<RandomWords> { | |
final _suggestions = <WordPair>[]; | |
final _biggerFont = const TextStyle(fontSize: 18.0); | |
Widget _buildSuggestions() { | |
return ListView.builder( | |
padding: const EdgeInsets.all(16.0), | |
itemBuilder: /*1*/ (context, i) { | |
if (i.isOdd) return Divider(); /*2*/ | |
final index = i ~/ 2; /*3*/ | |
if (index >= _suggestions.length) { | |
_suggestions.addAll(generateWordPairs().take(10)); /*4*/ | |
} | |
return _buildRow(_suggestions[index]); | |
}); | |
} | |
Widget _buildRow(WordPair pair) { | |
return ListTile( | |
title: Text( | |
pair.asPascalCase, | |
style: _biggerFont, | |
), | |
); | |
} | |
@override | |
Widget build(BuildContext context) { | |
return Scaffold( | |
appBar: AppBar( | |
title: Text('Startup Name Generator'), | |
), | |
body: _buildSuggestions(), | |
); | |
} | |
} |
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