Flutter曲线抽屉导航插件curved_drawer_fork的使用
Flutter曲线抽屉导航插件curved_drawer_fork的使用
curved_drawer_fork 是一个 Flutter 小部件，它提供了一个易于使用的动画抽屉。
添加依赖
在 pubspec.yaml 文件中添加以下依赖：
dependencies:
curved_drawer_fork: ^0.0.1 #最新版本
简单实现
以下是一个简单的实现示例：
Scaffold(
drawer: CurvedDrawer(
color: Colors.white,
labelColor: Colors.black54,
width: 75.0,
items: [
DrawerItem(icon: personIcon),
// 可选标签文本
DrawerItem(icon: messageIcon, label: "Messages")
],
onTap: (index) {
// 处理按钮点击事件
},
),
body: Container(),
)
属性
items:DrawerItem列表。index: 选中的项索引 - 可以用于更改当前索引或设置初始索引。color: 抽屉的颜色，默认为白色。buttonBackgroundColor: 浮动按钮的背景颜色，默认与color属性相同。backgroundColor: 导航栏背景颜色，默认为透明。onTap: 处理对项目的点击事件的函数。animationCurve: 插值器，用于按钮更改动画，默认为Curves.easeOutCubic。animationDuration: 动画持续时间，默认为Duration(milliseconds: 600)。width: 抽屉的宽度，默认最小值为 50.0，最大值为 100.0。isEndDrawer: 如果用作结束抽屉，则设为true，默认为false。
完整示例
以下是一个完整的示例代码，展示了如何使用 curved_drawer_fork 插件来创建一个带有滑块的抽屉导航：
import 'package:curved_drawer_fork/curved_drawer_fork.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
// 这个小部件是你的应用的根
[@override](/user/override)
Widget build(BuildContext context) {
SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
return MaterialApp(
title: '动画演示',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: Playground(title: '曲线抽屉演示'),
);
}
}
class Playground extends StatefulWidget {
Playground({Key? key, required this.title}) : super(key: key);
final String title;
[@override](/user/override)
_PlaygroundState createState() => _PlaygroundState();
}
class _PlaygroundState extends State<Playground> {
int index = 0;
double leftWidth = 75.0;
int leftTextColor = 1;
int leftBackgroundColor = 0;
double rightWidth = 75.0;
int rightTextColor = 1;
int rightBackgroundColor = 0;
final List<Color> colorPallete = [
Colors.white,
Colors.black,
Colors.blue,
Colors.blueAccent,
Colors.red,
Colors.redAccent,
Colors.teal,
Colors.orange,
Colors.pink,
Colors.purple,
Colors.lime,
Colors.green
];
List<DrawerItem> _drawerItems = [
DrawerItem(icon: Icon(Icons.people), label: "People"),
DrawerItem(icon: Icon(Icons.trending_up), label: "Trending"),
DrawerItem(icon: Icon(Icons.tv)),
DrawerItem(icon: Icon(Icons.work), label: "Work"),
DrawerItem(icon: Icon(Icons.web)),
DrawerItem(icon: Icon(Icons.videogame_asset)),
DrawerItem(icon: Icon(Icons.book), label: "Book"),
DrawerItem(icon: Icon(Icons.call), label: "Telephone")
];
[@override](/user/override)
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
drawer: CurvedDrawer(
index: index,
width: leftWidth,
color: colorPallete[leftBackgroundColor],
buttonBackgroundColor: colorPallete[leftBackgroundColor],
labelColor: colorPallete[leftTextColor],
items: _drawerItems,
onTap: (newIndex) {
setState(() {
index = newIndex;
});
},
),
endDrawer: CurvedDrawer(
index: index,
width: rightWidth,
color: colorPallete[rightBackgroundColor],
buttonBackgroundColor: colorPallete[rightBackgroundColor],
labelColor: colorPallete[rightTextColor],
isEndDrawer: true,
items: _drawerItems,
onTap: (newIndex) {
setState(() {
index = newIndex;
});
},
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
'当前索引是 $index',
),
SizedBox(
height: 15,
),
Text("左侧宽度 = $leftWidth"),
Slider(
label: "左侧抽屉宽度",
activeColor: Colors.blue,
min: 50.0,
max: 100.0,
divisions: 50,
value: leftWidth,
onChanged: (value) => setState(() => leftWidth = value),
),
SizedBox(
height: 15,
),
SliderTheme(
child: Slider(
label: "左侧抽屉背景色",
activeColor: colorPallete[leftBackgroundColor],
min: 0,
max: colorPallete.length.toDouble() - 1.0,
divisions: colorPallete.length,
value: leftBackgroundColor.toDouble(),
onChanged: (value) => setState(() {
leftBackgroundColor = value.toInt();
}),
),
data: SliderThemeData(
valueIndicatorTextStyle: TextStyle(color: Colors.grey))),
SizedBox(
height: 15,
),
SliderTheme(
child: Slider(
label: "左侧抽屉标签颜色",
activeColor: colorPallete[leftTextColor],
min: 0,
max: colorPallete.length.toDouble() - 1.0,
divisions: colorPallete.length,
value: leftTextColor.toDouble(),
onChanged: (value) => setState(() {
leftTextColor = value.toInt();
}),
),
data: SliderThemeData(
valueIndicatorTextStyle: TextStyle(color: Colors.grey))),
SizedBox(
height: 15,
),
Text("右侧宽度 = $rightWidth"),
Slider(
label: "右侧抽屉宽度",
activeColor: Colors.blue,
min: 50.0,
max: 100.0,
divisions: 50,
value: rightWidth,
onChanged: (value) => setState(() => rightWidth = value),
),
SizedBox(
height: 15,
),
SliderTheme(
child: Slider(
label: "右侧抽屉背景色",
activeColor: colorPallete[rightBackgroundColor],
min: 0,
max: colorPallete.length.toDouble() - 1.0,
divisions: colorPallete.length,
value: rightBackgroundColor.toDouble(),
onChanged: (value) => setState(() {
rightBackgroundColor = value.toInt();
}),
),
data: SliderThemeData(
valueIndicatorTextStyle: TextStyle(color: Colors.grey))),
SizedBox(
height: 15,
),
SliderTheme(
child: Slider(
label: "右侧抽屉标签颜色",
activeColor: colorPallete[rightTextColor],
min: 0,
max: colorPallete.length.toDouble() - 1.0,
divisions: colorPallete.length,
value: rightTextColor.toDouble(),
onChanged: (value) => setState(() {
rightTextColor = value.toInt();
}),
),
data: SliderThemeData(
valueIndicatorTextStyle: TextStyle(color: Colors.grey))),
],
),
),
);
}
}
更多关于Flutter曲线抽屉导航插件curved_drawer_fork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曲线抽屉导航插件curved_drawer_fork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，以下是如何在Flutter项目中使用curved_drawer_fork插件来实现曲线抽屉导航的示例代码。这个插件提供了一个具有曲线动画效果的抽屉导航菜单。
首先，确保你已经在pubspec.yaml文件中添加了curved_drawer_fork依赖：
dependencies:
flutter:
sdk: flutter
curved_drawer_fork: ^最新版本号 # 请替换为实际最新版本号
然后运行flutter pub get来安装依赖。
接下来，你可以按照以下步骤在你的Flutter应用中实现曲线抽屉导航：
1. 导入必要的包
import 'package:flutter/material.dart';
import 'package:curved_drawer_fork/curved_drawer.dart';
2. 创建主应用
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Curved Drawer Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(),
);
}
}
3. 创建主页
class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
@override
Widget build(BuildContext context) {
return Scaffold(
key: _scaffoldKey,
appBar: AppBar(
title: Text('Curved Drawer Demo'),
leading: IconButton(
icon: Icon(Icons.menu),
onPressed: () {
_scaffoldKey.currentState?.openDrawer();
},
),
),
drawer: CurvedDrawer(
title: "Menu",
subTitle: "Options",
curveSize: 20,
overlayColor: Colors.black45,
borderRadius: 20,
menuList: [
DrawerItem(
icon: Icons.home,
text: "Home",
onTap: () {
Navigator.pop(context); // 关闭抽屉
// 你可以在这里添加跳转到Home页面的逻辑
},
),
DrawerItem(
icon: Icons.settings,
text: "Settings",
onTap: () {
Navigator.pop(context); // 关闭抽屉
// 你可以在这里添加跳转到Settings页面的逻辑
},
),
// 添加更多菜单项
],
),
body: Center(
child: Text('Hello, Flutter!'),
),
);
}
}
4. 定义DrawerItem组件（如果需要自定义）
curved_drawer_fork插件可能已经自带了DrawerItem组件，但如果你需要自定义，可以按照如下方式实现：
class DrawerItem extends StatelessWidget {
final IconData icon;
final String text;
final VoidCallback onTap;
const DrawerItem({Key? key, required this.icon, required this.text, required this.onTap}) : super(key: key);
@override
Widget build(BuildContext context) {
return ListTile(
leading: Icon(icon),
title: Text(text),
onTap: onTap,
);
}
}
5. 运行应用
确保你的开发环境配置正确，然后运行应用。你应该会看到一个带有曲线动画效果的抽屉导航菜单。
这个示例展示了如何使用curved_drawer_fork插件来实现一个基本的曲线抽屉导航。你可以根据需求进一步自定义和扩展这个示例。
