Flutter时间线分组展示插件grouped_timeline的使用
Flutter时间线分组展示插件grouped_timeline的使用
特性
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Flutter Package：
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单元测试状态：
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Pub Points：
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受欢迎程度：
grouped_timeline 是一个为您的 Flutter 项目提供交互式时间线小部件的 Flutter 插件。
入门
grouped_timeline 基本上是一个改进的时间线包，因此您可以直接将其用作 TimeLine 小部件。
使用
TimeLine(
/// 我们提供了一个时间线信息列表
timeLineInfo: [
TimeLineInfo(
date: "12 May",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: ["https://source.unsplash.com/random/200x200?sig=1", "https://source.unsplash.com/random/200x200?sig=2"],
),
TimeLineInfo(
date: "14 May",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: ["https://source.unsplash.com/random/200x200?sig=3", "https://source.unsplash.com/random/200x200?sig=4"],
),
TimeLineInfo(
date: "12 May",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: ["https://source.unsplash.com/random/200x200?sig=5", "https://source.unsplash.com/random/200x200?sig=6"],
),
],
)
完整示例
以下是一个完整的示例代码，展示了如何在 Flutter 应用程序中使用 grouped_timeline 插件。
import 'package:flutter/material.dart';
import 'package:grouped_timeline/grouped_timeline.dart';
void main() {
/// 根widget
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
[@override](/user/override)
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
debugShowCheckedModeBanner: false,
theme: ThemeData(
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true,
),
/// 自定义时间线小部件以显示时间线视图
home: TimeLine(
/// 提供一个时间线信息列表
timeLineInfo: [
TimeLineInfo(
date: "12 May",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: [
"https://source.unsplash.com/random/200x200?sig=1",
"https://source.unsplash.com/random/200x200?sig=2"
],
),
TimeLineInfo(
date: "14 May",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: [
"https://source.unsplash.com/random/200x200?sig=3",
"https://source.unsplash.com/random/200x200?sig=4"
],
),
TimeLineInfo(
date: "12 May",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: [
"https://source.unsplash.com/random/200x200?sig=5",
"https://source.unsplash.com/random/200x200?sig=6"
],
),
TimeLineInfo(
date: "24 Jan",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: [
"https://source.unsplash.com/random/200x200?sig=7",
"https://source.unsplash.com/random/200x200?sig=8"
],
),
TimeLineInfo(
date: "24 Jan",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: [
"https://source.unsplash.com/random/200x200?sig=9",
"https://source.unsplash.com/random/200x200?sig=10"
],
),
TimeLineInfo(
date: "13 May",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: [
"https://source.unsplash.com/random/200x200?sig=11",
"https://source.unsplash.com/random/200x200?sig=12"
],
),
TimeLineInfo(
date: "13 May",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: [
"https://source.unsplash.com/random/200x200?sig=13",
"https://source.unsplash.com/random/200x200?sig=14"
],
),
TimeLineInfo(
date: "13 May",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: [
"https://source.unsplash.com/random/200x200?sig=15",
"https://source.unsplash.com/random/200x200?sig=16"
],
),
TimeLineInfo(
date: "14 May",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: [
"https://source.unsplash.com/random/200x200?sig=17",
"https://source.unsplash.com/random/200x200?sig=18"
],
),
TimeLineInfo(
date: "14 May",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: [
"https://source.unsplash.com/random/200x200?sig=19",
"https://source.unsplash.com/random/200x200?sig=20"
],
),
TimeLineInfo(
date: "11 Feb",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: [
"https://source.unsplash.com/random/200x200?sig=21",
"https://source.unsplash.com/random/200x200?sig=22"
],
),
TimeLineInfo(
date: "11 Feb",
title: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sollicitudin eu orci at bibendum. Etiam semper volutpat magna, a vehicula",
images: [
"https://source.unsplash.com/random/200x200?sig=23",
"https://source.unsplash.com/random/200x200?sig=24"
],
),
],
),
);
}
}
更多关于Flutter时间线分组展示插件grouped_timeline的使用的实战教程也可以访问 https://www.itying.com/category-92-b0.html
1 回复
更多关于Flutter时间线分组展示插件grouped_timeline的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html
grouped_timeline 是一个用于在 Flutter 应用中展示时间线分组内容的插件。它可以帮助你将事件或消息按照日期或其他条件进行分组，并以时间线的形式展示出来。以下是如何使用 grouped_timeline 插件的基本步骤。
1. 添加依赖
首先，你需要在 pubspec.yaml 文件中添加 grouped_timeline 依赖：
dependencies:
flutter:
sdk: flutter
grouped_timeline: ^0.1.0 # 请检查最新版本
然后运行 flutter pub get 来安装依赖。
2. 导入包
在你的 Dart 文件中导入 grouped_timeline 包：
import 'package:grouped_timeline/grouped_timeline.dart';
3. 创建数据模型
为了展示时间线内容，你需要创建一个数据模型。例如，我们可以创建一个 TimelineEvent 类：
class TimelineEvent {
final DateTime date;
final String title;
final String description;
TimelineEvent({
required this.date,
required this.title,
required this.description,
});
}
4. 准备数据
接下来，准备一些示例数据：
List<TimelineEvent> events = [
TimelineEvent(
date: DateTime(2023, 10, 1),
title: 'Event 1',
description: 'This is the first event.',
),
TimelineEvent(
date: DateTime(2023, 10, 2),
title: 'Event 2',
description: 'This is the second event.',
),
TimelineEvent(
date: DateTime(2023, 10, 2),
title: 'Event 3',
description: 'This is the third event.',
),
TimelineEvent(
date: DateTime(2023, 10, 3),
title: 'Event 4',
description: 'This is the fourth event.',
),
];
5. 使用 GroupedTimeline 组件
现在，你可以使用 GroupedTimeline 组件来展示这些事件：
class TimelineScreen extends StatelessWidget {
[@override](/user/override)
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Grouped Timeline'),
),
body: GroupedTimeline<TimelineEvent>(
events: events,
groupBy: (event) => event.date,
itemBuilder: (context, event) => ListTile(
title: Text(event.title),
subtitle: Text(event.description),
),
groupHeaderBuilder: (context, date) => Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
'${date.year}-${date.month}-${date.day}',
style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
),
),
),
);
}
}