Flutter记忆卡片插件flash_card的使用

发布于 1周前 作者 songsunli 来自 Flutter

Flutter记忆卡片插件flash_card的使用

Flash Card 是一个支持创建记忆卡片的学习方法,它使得用户更容易记住信息。本文将介绍如何在Flutter项目中使用 flash_card 插件。

依赖

在您的 pubspec.yaml 文件中添加以下依赖:

dependencies:
  flash_card: ^0.0.5

确保运行 flutter pub get 来安装新的依赖包。

示例展示

Showcase GIF

代码示例

下面是一个简单的例子,展示了如何创建和使用 FlashCard 小部件:

基本用法

FlashCard(
    frontWidget: Container(
        child: Text('front')
    ),
    backWidget: Container(
        child: Text('back')
    )
)

FlashCardListItem 示例

FlashCardListItem(
    flashcards: []
)

完整的示例 Demo

这是一个完整的例子,演示了如何在一个 ListView 中使用多个 FlashCard 实例:

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

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

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(primarySwatch: Colors.blue),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatelessWidget {
  MyHomePage({required this.title});

  final String title;

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text(title)),
      body: ListView.builder(
        itemCount: flashCard.length,
        itemBuilder: (context, index) {
          return flashCard[index];
        },
      ),
    );
  }

  final List<FlashCard> flashCard = List.generate(
    5,
    (index) => FlashCard(
      key: Key(index.toString()),
      frontWidget: () => Container(
        height: 100,
        width: 100,
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Image.network(
              'https://fn.vinhphuc.edu.vn/UploadImages/mnhoanglau/admin/anh%20nha.jpg?w=700',
              width: 100,
              height: 100,
            ),
            Text.rich(TextSpan(
                text: 'Nghĩa:',
                style: TextStyle(color: Colors.black, fontWeight: FontWeight.bold, fontSize: 20),
                children: [
                  TextSpan(
                    text: 'Ngôi nhà',
                    style: TextStyle(color: Colors.red, fontWeight: FontWeight.bold, fontSize: 20),
                  )
                ])),
            Text.rich(TextSpan(
                text: 'Phiên âm:',
                style: TextStyle(color: Colors.black, fontWeight: FontWeight.bold, fontSize: 20),
                children: [
                  TextSpan(
                    text: '/həʊm/',
                    style: TextStyle(color: Colors.red, fontWeight: FontWeight.bold, fontSize: 20),
                  )
                ])),
            Container(
              height: 40,
              width: 40,
              margin: const EdgeInsets.all(20),
              decoration: BoxDecoration(
                  shape: BoxShape.circle,
                  color: Colors.white,
                  border: Border.all(color: Colors.blue, width: 2),
                  boxShadow: [
                    BoxShadow(
                        color: Colors.grey,
                        offset: Offset(2, 2),
                        spreadRadius: 1,
                        blurRadius: 15)
                  ]),
              child: Center(
                  child: Icon(Icons.volume_down_sharp, color: Colors.blue)),
            ),
          ],
        ),
      ),
      backWidget: () => Container(
        height: 100,
        width: 100,
        child: Center(
          child: Text(
            'Home $index',
            style: TextStyle(color: Colors.deepPurple, fontSize: 30, fontWeight: FontWeight.w900),
          ),
        ),
      ),
      width: 300,
      height: 400,
    ),
  );
}

更多关于Flutter记忆卡片插件flash_card的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html

1 回复

更多关于Flutter记忆卡片插件flash_card的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html


当然,以下是一个关于如何在Flutter项目中使用flash_card插件来创建记忆卡片的示例代码。flash_card插件允许你轻松创建和管理记忆卡片,非常适合学习应用或复习工具。

首先,确保你已经在pubspec.yaml文件中添加了flash_card依赖项:

dependencies:
  flutter:
    sdk: flutter
  flash_card: ^latest_version  # 请替换为实际的最新版本号

然后,运行flutter pub get来获取依赖项。

以下是一个简单的示例,展示如何使用flash_card插件来创建一个包含一些记忆卡片的Flutter应用:

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Flash Card Example',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: FlashCardScreen(),
    );
  }
}

class FlashCardScreen extends StatefulWidget {
  @override
  _FlashCardScreenState createState() => _FlashCardScreenState();
}

class _FlashCardScreenState extends State<FlashCardScreen> {
  final List<FlashCard> flashCards = [
    FlashCard(front: 'Front 1', back: 'Back 1'),
    FlashCard(front: 'Front 2', back: 'Back 2'),
    FlashCard(front: 'Front 3', back: 'Back 3'),
  ];

  int currentIndex = 0;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Flash Card Demo'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            FlashCardWidget(
              card: flashCards[currentIndex],
              flipCard: () {
                setState(() {
                  currentIndex = (currentIndex + 1) % flashCards.length;
                });
              },
            ),
            SizedBox(height: 20),
            ElevatedButton(
              onPressed: () {
                setState(() {
                  currentIndex = (currentIndex + 1) % flashCards.length;
                });
              },
              child: Text('Next Card'),
            ),
          ],
        ),
      ),
    );
  }
}

class FlashCardWidget extends StatefulWidget {
  final FlashCard card;
  final VoidCallback flipCard;

  FlashCardWidget({required this.card, required this.flipCard});

  @override
  _FlashCardWidgetState createState() => _FlashCardWidgetState();
}

class _FlashCardWidgetState extends State<FlashCardWidget> with SingleTickerProviderStateMixin {
  late AnimationController _controller;
  late Animation<double> _animation;

  @override
  void initState() {
    super.initState();
    _controller = AnimationController(
      duration: const Duration(milliseconds: 500),
      vsync: this,
    )..repeat(reverse: true);

    _animation = Tween<double>(begin: 0.0, end: 1.0).animate(
      CurvedAnimation(
        parent: _controller,
        curve: Curves.easeInOut,
      ),
    );
  }

  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  void _flip() {
    setState(() {
      _controller.reset();
      _controller.forward();
      widget.flipCard();
    });
  }

  @override
  Widget build(BuildContext context) {
    return AnimatedBuilder(
      animation: _animation,
      child: Container(
        decoration: BoxDecoration(
          border: Border.all(color: Colors.grey),
          borderRadius: BorderRadius.circular(10),
        ),
        child: Center(
          child: Transform(
            transform: Matrix4.identity()
              ..setEntry(3, 2, 0.001) // workaround for rendering issue on some devices
              ..rotateY(_animation.value * pi),
            alignment: Alignment.center,
            child: Container(
              decoration: BoxDecoration(
                color: Colors.white,
                borderRadius: BorderRadius.circular(10),
              ),
              padding: EdgeInsets.all(20),
              child: _animation.value > 0.5
                  ? Text(widget.card.back, style: TextStyle(fontSize: 24))
                  : Text(widget.card.front, style: TextStyle(fontSize: 24)),
            ),
          ),
        ),
      ),
      builder: (context, child) {
        return GestureDetector(
          onDoubleTap: _flip,
          child: child,
        );
      },
    );
  }
}

在这个示例中,我们创建了一个简单的Flutter应用,其中包含一个记忆卡片列表。每个卡片都可以通过双击来翻转显示正面和背面。此外,我们还提供了一个“Next Card”按钮来手动切换到下一张卡片。

请注意,这个示例使用了AnimatedBuilderAnimationController来实现卡片的翻转动画。你可以根据需要调整动画效果、卡片样式以及交互逻辑。

希望这个示例对你有所帮助!如果有更多问题,欢迎继续提问。

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