Flutter 动态底部抽屉插件 dynamic_bottom_drawer 的使用

Flutter 插件 dynamic_bottom_drawer 可用于动态创建底部抽屉。使用此插件，开发者可以动态渲染底部抽屉，并且可以使应用程序更具可扩展性，同时节省时间。

在遇到任何问题或需要对插件进行自定义时，可以通过以下邮箱联系我：barsainya.satyam.sb@gmail.com。

开始使用

首先，确保你已经在项目中添加了 dynamic_bottom_drawer 依赖项。你可以在 pubspec.yaml 文件中添加以下依赖：

dependencies:
  dynamic_bottom_drawer: ^x.y.z

然后运行 flutter pub get 来获取该库。

接下来，我们来看一个完整的示例代码，展示如何使用 dynamic_bottom_drawer 创建动态底部抽屉。

完整示例代码

import 'package:dynamic_bottom_drawer/dynamic_bottom_drawer_with_icon.dart';
import 'package:flutter/material.dart';

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

class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

  [@override](/user/override)
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  late int selectedIndex = 0;

  [@override](/user/override)
  Widget build(BuildContext context) {
    var dataListWithIcon = {
      "Home": Icons.home_outlined,
      "Profile": Icons.people,
      "Logout": Icons.logout,
      "Settings": Icons.settings,
      "Cart": Icons.car_rental
    };

    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        appBar: AppBar(
          title: const Text("动态底部抽屉"),
        ),
        bottomNavigationBar: DynamicBottomDrawerWithIcon(
            isSelectedBorderRequired: true,
            backgroundColorForbottomDrawer: Colors.blueGrey,
            initialSelectionIndex: selectedIndex,
            dataListWithIcon: dataListWithIcon,
            unselectedMenuColor: Colors.black,
            selectedMenuColor: Colors.red,
            onTap: (String value, int index) {
              // 打印点击的值和索引
              print("$value : $index");
            }),
        body: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: const [
            Center(child: Text("动态底部抽屉")),
          ],
        ),
      ),
    );
  }
}

代码解释

• 导入库：

  import 'package:dynamic_bottom_drawer/dynamic_bottom_drawer_with_icon.dart';
  import 'package:flutter/material.dart';
  

• 主应用类：

  void main() {
    runApp(const MyApp());
  }
  
  class MyApp extends StatefulWidget {
    const MyApp({Key? key}) : super(key: key);
  
    [@override](/user/override)
    State<MyApp> createState() => _MyAppState();
  }
  

• 状态管理类：

  class _MyAppState extends State<MyApp> {
    late int selectedIndex = 0;
  

• 构建方法：

  [@override](/user/override)
  Widget build(BuildContext context) {
    var dataListWithIcon = {
      "Home": Icons.home_outlined,
      "Profile": Icons.people,
      "Logout": Icons.logout,
      "Settings": Icons.settings,
      "Cart": Icons.car_rental
    };
  

• MaterialApp 和 Scaffold：

  return MaterialApp(
    debugShowCheckedModeBanner: false,
    home: Scaffold(
      appBar: AppBar(
        title: const Text("动态底部抽屉"),
      ),
      bottomNavigationBar: DynamicBottomDrawerWithIcon(
          isSelectedBorderRequired: true,
          backgroundColorForbottomDrawer: Colors.blueGrey,
          initialSelectionIndex: selectedIndex,
          dataListWithIcon: dataListWithIcon,
          unselectedMenuColor: Colors.black,
          selectedMenuColor: Colors.red,
          onTap: (String value, int index) {
            // 打印点击的值和索引
            print("$value : $index");
          }),
      body: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        crossAxisAlignment: CrossAxisAlignment.center,
        children: const [
          Center(child: Text("动态底部抽屉")),
        ],
      ),
    ),
  );
  }