Flutter多级抽屉导航插件multilevel_drawer的使用
Flutter多级抽屉导航插件multilevel_drawer的使用
MultiLevel Drawer
MultiLevel Drawer 是一个易于实现的Flutter应用程序多级抽屉组件。只需将其用作常规Scaffold抽屉，即可轻松上手。
当前特性
- 为选定项添加多级抽屉
- 根据应用程序需求更改主菜单和子菜单的颜色
Demo
使用方法
要使用 MultiLevelDrawer，只需将其添加到 Scaffold 的 drawer 属性中：
child: Scaffold(
drawer: MultiLevelDrawer(
backgroundColor: Colors.white,
rippleColor: Colors.white,
subMenuBackgroundColor: Colors.grey.shade100,
header: Container( // 抽屉头部
height: size.height * 0.25,
child: Center(child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Image.asset("assets/dp_default.png",width: 100,height: 100,),
SizedBox(height: 10,),
Text("RetroPortal Studio")
],
)),
),
children: [ // 每个抽屉项的子元素
MLMenuItem(
leading: Icon(Icons.person),
trailing: Icon(Icons.arrow_right),
content: Text(
"My Profile",
),
subMenuItems: [
MLSubmenu(onClick: () {}, submenuContent: Text("Option 1")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 2")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 3")),
],
onClick: () {}),
MLMenuItem(
leading: Icon(Icons.settings),
trailing: Icon(Icons.arrow_right),
content: Text("Settings"),
onClick: () {},
subMenuItems: [
MLSubmenu(onClick: () {}, submenuContent: Text("Option 1")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 2"))
]),
MLMenuItem(
leading: Icon(Icons.notifications),
content: Text("Notifications"),
onClick: () {},
),
MLMenuItem(
leading: Icon(Icons.payment),
trailing: Icon(Icons.arrow_right),
content: Text(
"Payments",
),
subMenuItems: [
MLSubmenu(onClick: () {}, submenuContent: Text("Option 1")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 2")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 3")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 4")),
],
onClick: () {}),
],
),
appBar: AppBar(
backgroundColor: Colors.white,
iconTheme: IconThemeData(color: Colors.black),
title: Text(
"Multi Level Menu",
style: TextStyle(color: Colors.black),
),
),
body: Container(
decoration: BoxDecoration(
gradient:
LinearGradient(begin: Alignment.topCenter, end: Alignment.bottomCenter, colors: [
Color.fromRGBO(255, 65, 108, 1.0),
Color.fromRGBO(255, 75, 43, 1.0),
]),
),
child: Center()),
),
重要类：
MLMenuItem：用于每个直接子项MLSubmenu：用于向MLMenuItem添加子菜单
示例代码
以下是一个完整的示例代码，演示了如何在Flutter项目中使用 MultiLevelDrawer 插件：
import 'package:flutter/material.dart';
import 'package:multilevel_drawer/multilevel_drawer.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
title: 'Flutter ML Menu',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
@override
Widget build(BuildContext context) {
Size size = MediaQuery.of(context).size;
return SafeArea(
child: Scaffold(
drawer: MultiLevelDrawer(
backgroundColor: Colors.white,
rippleColor: Colors.white,
subMenuBackgroundColor: Colors.grey.shade100,
divisionColor: Colors.grey,
header: Container(
height: size.height * 0.25,
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Image.asset(
"assets/dp_default.png",
width: 100,
height: 100,
),
SizedBox(
height: 10,
),
Text("RetroPortal Studio")
],
)),
),
children: [
MLMenuItem(
leading: Icon(Icons.person),
trailing: Icon(Icons.arrow_right),
content: Text(
"My Profile",
),
subMenuItems: [
MLSubmenu(
onClick: () {
Navigator.of(context).pop();
Navigator.of(context).push(MaterialPageRoute(builder: (context) => SecondScreen()));
},
submenuContent: Text("Option 1")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 2")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 3")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 4")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 5")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 6")),
],
onClick: () {}),
MLMenuItem(
leading: Icon(Icons.settings),
trailing: Icon(Icons.arrow_right),
content: Text("Settings"),
onClick: () {},
subMenuItems: [MLSubmenu(onClick: () {}, submenuContent: Text("Option 1")), MLSubmenu(onClick: () {}, submenuContent: Text("Option 2"))]),
MLMenuItem(
leading: Icon(Icons.notifications),
content: Text("Notifications"),
onClick: () {
Navigator.of(context).push(MaterialPageRoute(builder: (context) => SecondScreen()));
},
),
MLMenuItem(
leading: Icon(Icons.payment),
trailing: Icon(Icons.arrow_right),
content: Text(
"Payments",
),
subMenuItems: [
MLSubmenu(onClick: () {}, submenuContent: Text("Option 1")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 2")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 3")),
MLSubmenu(onClick: () {}, submenuContent: Text("Option 4")),
],
onClick: () {}),
],
),
appBar: AppBar(
backgroundColor: Colors.white,
iconTheme: IconThemeData(color: Colors.black),
title: Text(
"Multi Level Menu",
style: TextStyle(color: Colors.black),
),
),
body: Container(
decoration: BoxDecoration(
gradient: LinearGradient(begin: Alignment.topCenter, end: Alignment.bottomCenter, colors: [
Color.fromRGBO(255, 65, 108, 1.0),
Color.fromRGBO(255, 75, 43, 1.0),
]),
),
child: Center()),
),
);
}
}
路线图
计划添加更多自定义选项。
许可证
MIT许可证，详情请参见MIT License。
更多关于Flutter多级抽屉导航插件multilevel_drawer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多级抽屉导航插件multilevel_drawer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中使用multilevel_drawer插件来实现多级抽屉导航的示例代码。multilevel_drawer是一个用于创建多级抽屉导航的Flutter插件，可以帮助你构建复杂的导航结构。
首先，你需要在你的pubspec.yaml文件中添加multilevel_drawer依赖：
dependencies:
flutter:
sdk: flutter
multilevel_drawer: ^最新版本号 # 请替换为实际可用的最新版本号
然后，运行flutter pub get来安装依赖。
接下来，是一个完整的示例代码，展示如何使用multilevel_drawer：
import 'package:flutter/material.dart';
import 'package:multilevel_drawer/multilevel_drawer.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Multi-Level Drawer Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(),
);
}
}
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('Multi-Level Drawer Demo'),
),
drawer: MultiLevelDrawer(
header: DrawerHeader(
decoration: BoxDecoration(
color: Colors.blue,
),
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
'Drawer Header',
style: TextStyle(color: Colors.white),
),
),
),
drawerItems: [
MultiLevelDrawerItem(
title: 'Home',
icon: Icons.home,
onTap: () {
Navigator.pop(context); // 关闭抽屉
},
),
MultiLevelDrawerItem(
title: 'About',
icon: Icons.info,
onTap: () {
Navigator.pop(context); // 关闭抽屉
// 可以在这里添加其他逻辑，比如跳转到About页面
},
),
MultiLevelDrawerItem(
title: 'Services',
icon: Icons.settings,
subItems: [
MultiLevelDrawerSubItem(
title: 'Service 1',
icon: Icons.directions_car,
onTap: () {
Navigator.pop(context); // 关闭抽屉
// 可以在这里添加其他逻辑，比如跳转到Service 1页面
},
),
MultiLevelDrawerSubItem(
title: 'Service 2',
icon: Icons.directions_transit,
onTap: () {
Navigator.pop(context); // 关闭抽屉
// 可以在这里添加其他逻辑，比如跳转到Service 2页面
},
),
],
),
// 可以继续添加更多的顶层和子项
],
),
body: Center(
child: Text('Home Page'),
),
);
}
}
在这个示例中，我们创建了一个简单的Flutter应用，其中包含一个多级抽屉导航。抽屉导航的头部使用了DrawerHeader，并且包含了几个顶层菜单项（MultiLevelDrawerItem）和一个包含子项的菜单项（MultiLevelDrawerItem带有subItems）。
每个菜单项和子项都定义了标题、图标和点击事件处理函数。点击事件处理函数中，我们简单地关闭了抽屉，但你可以根据需要添加跳转到其他页面的逻辑。
请注意，multilevel_drawer插件的API可能会随着版本更新而发生变化，因此请查阅最新的官方文档以获取最准确的使用方法和API参考。
