探索Flutter实战：GitCode上的《Flutter Book Samples》项目详解

import 'package:flutter/material.dart';
 
void main() => runApp(MyApp());
 
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: BookListPage(),
    );
  }
}
 
class BookListPage extends StatefulWidget {
  @override
  _BookListPageState createState() => _BookListPageState();
}
 
class _BookListPageState extends State<BookListPage> {
  // 假设的图书列表数据
  final List<Map<String, Object>> books = [
    {
      'title': 'Book 1',
      'author': 'Author 1',
    },
    {
      'title': 'Book 2',
      'author': 'Author 2',
    },
    // ...更多图书数据
  ];
 
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Books'),
      ),
      body: ListView.builder(
        itemCount: books.length,
        itemBuilder: (context, index) {
          return ListTile(
            title: Text(books[index]['title']),
            subtitle: Text(books[index]['author']),
          );
        },
      ),
    );
  }
}

这段代码展示了如何在Flutter中创建一个简单的图书列表界面。它使用了ListView.builder来高效构建列表项，并展示了如何使用StatefulWidget来管理状态，这对于学习如何在Flutter中处理用户界面的数据流是很有帮助的。