Flutter数字分页插件flutter_number_pagination的使用

Flutter数字分页插件flutter_number_pagination的使用

在Flutter应用中添加分页功能非常简单。下面是如何使用flutter_number_pagination插件的详细步骤。

如何使用

首先，确保你已经在项目的pubspec.yaml文件中添加了flutter_number_pagination依赖：

dependencies:
  flutter:
    sdk: flutter
  flutter_number_pagination: ^版本号

然后运行flutter pub get来安装该包。

接下来，你可以使用以下代码来实现数字分页功能：

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

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  [@override](/user/override)
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 1;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headlineMedium,
            ),
            const SizedBox(height: 200),
            NumberPagination(
              onPageChanged: (int pageNumber) {
                setState(() {
                  _counter = pageNumber;
                });
              },
              pageTotal: 50,
              pageInit: _counter, // 初始页面编号
              colorPrimary: Colors.blue,
              colorSub: Colors.white,
              threshold: 7,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ),
    );
  }
}