image.png
依赖
import 'package:flutter/material.dart';
import 'package:english_words/english_words.dart';
创建 StatelessWidget 并且加载到runApp
void main() => runApp(new MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
// TODO: implement build
return new MaterialApp(
title: 'ysfhj',
home: new RandomWords()
);
}
}
创建动态 StatefulWidget
class RandomWords extends StatefulWidget{
@override
createState() =>new RandomColorState();
}
class RandomColorState extends State<RandomWords>{
final _lists =<WordPair>[];
final _biggerFont =const TextStyle(fontSize: 18.0);
@override
Widget build(BuildContext context) {
// final wordPair = new WordPair.random();
// return new Text(wordPair.asPascalCase);
return new Scaffold(
appBar: new AppBar(
title: new Text('iam header'),
),
body: _buildLists(),
);
}
Widget _buildRow(WordPair pair){
return new ListTile(
title: new Text(
pair.asPascalCase,
style: _biggerFont,
),
);
}
Widget _buildLists() {
return new ListView.builder(
padding: const EdgeInsets.all(16.0),
itemBuilder: (context, i) {
if (i.isOdd) return new Divider();
final index = i ~/ 2;
if (index >= _lists.length) {
_lists.addAll(generateWordPairs().take(10));
}
return _buildRow(_lists[index]);
},
);
}
}
