Flutter新用户引导插件app_onboarding的使用
Flutter新用户引导插件app_onboarding的使用
A Flutter包用于构建带有提示的新用户引导！
特性
使用此插件在您的Flutter应用中可以实现：
- 构建手动新用户引导
- 构建自动新用户引导
开始使用
在您的pubspec.yaml文件中添加以下依赖项：
dependencies:
app_onboarding: ^1.0.3
然后运行 flutter pub get 来安装。
使用方法
第一步：创建AppOnboardingController
在你的类中创建一个AppOnboardingController实例，并确保在dispose方法中释放资源：
late final AppOnboardingController controller = AppOnboardingController();
[@override](/user/override)
void dispose() {
controller.dispose();
super.dispose();
}
第二步：用AppOnboarding包装顶层屏幕组件并设置控制器
将你的顶层屏幕组件包裹在AppOnboarding中，并设置之前创建的controller：
AppOnboarding(
controller: controller,
child: Scaffold(
body: ...,
),
);
第三步：将需要引导的组件包裹在AppOnboardingEntry中
将你希望引导的组件（如按钮、文本等）包裹在AppOnboardingEntry中，并指定索引和其他配置：
AppOnboardingEntry(
index: 0,
tooltipSettings: TooltipSettings(backgroundColor: Colors.red.shade400),
child: Text(widget.title),
),
第四步：启动引导流程
在initState方法中，延迟一段时间后开始引导流程：
[@override](/user/override)
void initState() {
super.initState();
Future.delayed(
const Duration(seconds: 2),
controller.start,
);
}
这样，你就创建了一个基本的新用户引导流程！
完整示例代码
以下是完整的示例代码，展示了如何使用app_onboarding插件：
import 'package:app_onboarding/app_onboarding.dart';
import 'package:flutter/material.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> {
late final AppOnboardingController controller = AppOnboardingController();
int _counter = 0;
void _incrementCounter() {
setState(() {
_counter++;
});
}
[@override](/user/override)
void initState() {
super.initState();
Future.delayed(
const Duration(seconds: 2),
controller.start,
);
}
[@override](/user/override)
void dispose() {
controller.dispose();
super.dispose();
}
[@override](/user/override)
Widget build(BuildContext context) {
final buttonStyle = Theme.of(context).elevatedButtonTheme.style ?? const ButtonStyle();
return AppOnboarding(
controller: controller,
onDone: () => showDialog(
context: context,
builder: (BuildContext context) => const AlertDialog(
title: Text(
'Onboarding finished!\n(onDone)',
textAlign: TextAlign.center,
),
),
),
onStart: () => showDialog(
context: context,
builder: (BuildContext context) => const AlertDialog(
title: Text(
'Onboarding started!\n(onStart)',
textAlign: TextAlign.center,
),
),
),
onAutoHiddenDone: () => showDialog(
context: context,
builder: (BuildContext context) => const AlertDialog(
title: Text(
'Auto Onboarding done!\n(onAutoHiddenDone)',
textAlign: TextAlign.center,
),
),
),
onAutoHiddenStart: () => showDialog(
context: context,
builder: (BuildContext context) => const AlertDialog(
title: Text(
'Auto Onboarding started!\n(onAutoHiddenStart)',
textAlign: TextAlign.center,
),
),
),
child: Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
title: AppOnboardingEntry(
index: 0,
tooltipSettings: TooltipSettings(backgroundColor: Colors.red.shade400),
child: Text(widget.title),
),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
AppOnboardingEntry(
index: 2,
customTooltipBuilder: (context, index) {
return SizedBox(
height: 150,
child: DecoratedBox(
decoration: BoxDecoration(
color: Colors.red.shade400,
borderRadius: BorderRadius.circular(20),
),
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
const Text(
'Custom tooltip!',
textAlign: TextAlign.center,
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
ElevatedButton(
onPressed: () {
controller.showPrev();
},
child: const Text('Prev'),
),
ElevatedButton(
onPressed: controller.hide,
child: const Text('Skip'),
),
ElevatedButton(
onPressed: () {
controller.showNext();
},
child: const Text('Next'),
),
],
),
],
),
),
);
},
tooltipSettings: const TooltipSettings(
tooltipDirection: AppOnboardingTooltipDirection.bottom,
),
child: const Text(
'You have pushed the button this many times:',
),
),
AppOnboardingEntry(
index: 1,
tooltipSettings: TooltipSettings(
tooltipTextSettings: TooltipTextSettings(
text: 'Custom text',
textStyle: Theme.of(context).textTheme.titleLarge?.copyWith(color: Colors.yellow),
textAlign: TextAlign.center,
),
backgroundColor: Colors.red.shade300,
skipButtonSettings: ButtonSettings(
buttonStyle: buttonStyle.copyWith(
backgroundColor: WidgetStatePropertyAll<Color>(
Colors.blue.shade500,
),
foregroundColor: WidgetStatePropertyAll(Colors.white),
),
),
nextButtonSettings: ButtonSettings(
buttonStyle: buttonStyle.copyWith(
backgroundColor: WidgetStatePropertyAll<Color>(
Colors.pink.shade400,
),
),
),
),
child: Text(
'$_counter',
style: Theme.of(context).textTheme.headlineMedium,
),
),
const SizedBox(height: 20),
ElevatedButton(
onPressed: () {
controller.start();
},
child: const Text('Start Onboarding'),
),
const SizedBox(height: 20),
AppOnboardingEntry(
index: 5,
isAutoHidden: true,
tooltipOffset: Offset(0, 10),
tooltipSettings: TooltipSettings(
tooltipTextSettings: TooltipTextSettings(
text: 'SECOND AUTO TOOLTIP!',
textAlign: TextAlign.center,
),
),
child: ElevatedButton(
onPressed: () {
controller.startAutoHidden();
},
child: const Text('Start Auto onboarding'),
),
),
],
),
),
floatingActionButton: AppOnboardingEntry(
index: 3,
tooltipOffset: const Offset(-113, -20),
tooltipSettings: const TooltipSettings(
arrowPosition: AppOnboardingTooltipArrowPosition.right,
tooltipDirection: AppOnboardingTooltipDirection.bottom,
completeText: 'Complete!',
),
holeBorderRadius: 100,
holeInnerPadding: 12,
backgroundColor: Colors.blue.withOpacity(0.4),
customOverlayBuilder: (context, index) {
return Center(
child: ColoredBox(
color: Colors.red.shade300,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
mainAxisSize: MainAxisSize.min,
children: [
const Text('Custom Background!'),
const FlutterLogo(
size: 150,
),
ElevatedButton(
onPressed: () {
showModalBottomSheet(
context: context,
builder: (context) {
return Container(
height: 200,
width: double.infinity,
color: Colors.red.shade200,
child: const Column(
children: [
SizedBox(height: 50),
Text('You can do all!'),
SizedBox(height: 50),
],
),
);
},
);
},
child: const Text(
'Click me',
),
),
],
),
),
);
},
child: AppOnboardingEntry(
index: 4,
isAutoHidden: true,
tooltipOffset: const Offset(-113, -15),
tooltipSettings: const TooltipSettings(
tooltipTextSettings:
TooltipTextSettings(text: 'THIS IS AUTO TOOLTIP!'),
tooltipDirection: AppOnboardingTooltipDirection.bottom,
arrowPosition: AppOnboardingTooltipArrowPosition.right,
),
child: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: const Icon(Icons.add),
),
),
),
),
);
}
}
更多关于Flutter新用户引导插件app_onboarding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新用户引导插件app_onboarding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，作为IT专家，以下是如何在Flutter项目中集成和使用app_onboarding插件来进行新用户引导的一个代码示例。app_onboarding是一个流行的Flutter插件，用于创建引人入胜的用户引导界面。
步骤 1: 添加依赖
首先，在你的pubspec.yaml文件中添加app_onboarding依赖：
dependencies:
flutter:
sdk: flutter
app_onboarding: ^1.2.0 # 请注意版本号，确保使用最新版本
然后运行flutter pub get来安装依赖。
步骤 2: 导入包
在你的Dart文件中导入app_onboarding包：
import 'package:flutter/material.dart';
import 'package:app_onboarding/app_onboarding.dart';
步骤 3: 创建引导页面
定义你的引导页面内容。例如，你可以有三个引导页面，每个页面都有不同的图片和标题。
List<Map<String, dynamic>> pages = [
{
'title': 'Welcome!',
'description': 'This is the first slide of the onboarding process.',
'image': AssetImage('assets/images/onboarding_1.png'),
},
{
'title': 'Get Started',
'description': 'This is the second slide. Learn how to get started.',
'image': AssetImage('assets/images/onboarding_2.png'),
},
{
'title': 'Enjoy!',
'description': 'This is the last slide. Enjoy using our app!',
'image': AssetImage('assets/images/onboarding_3.png'),
},
];
确保你已经将引导页面图片添加到了assets文件夹中，并在pubspec.yaml中声明它们：
flutter:
assets:
- assets/images/onboarding_1.png
- assets/images/onboarding_2.png
- assets/images/onboarding_3.png
步骤 4: 构建引导页面
使用Onboarding小部件来构建你的引导页面：
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Onboarding(
pages: pages.map((page) {
return OnboardingPage(
title: Text(page['title']!),
description: Text(page['description']!),
image: Image(image: page['image'] as AssetImage),
// 可以添加更多自定义内容，如背景颜色、按钮等
);
}).toList(),
// 完成引导后的操作
onComplete: () {
Navigator.push(
context,
MaterialPageRoute(builder: (context) => HomeScreen()),
);
},
// 引导过程中的跳过按钮（可选）
onSkip: () {
Navigator.push(
context,
MaterialPageRoute(builder: (context) => HomeScreen()),
);
},
// 引导页面底部的圆点指示器（可选）
dotsIndicatorColor: Colors.white,
activeDotColor: Colors.blue,
),
);
}
}
class HomeScreen extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text('Home Screen')),
body: Center(child: Text('Welcome to the Home Screen!')),
);
}
}
解释
Onboarding小部件接受一个pages列表，每个页面都是一个OnboardingPage对象。- 每个
OnboardingPage对象包含标题、描述和图片。 onComplete回调是在用户完成所有引导页面后触发的。onSkip回调是在用户点击跳过按钮时触发的。dotsIndicatorColor和activeDotColor用于自定义底部圆点指示器的颜色。
这样，你就成功地在Flutter应用中集成了app_onboarding插件，并创建了新用户引导界面。希望这个示例对你有所帮助！
