Flutter水滴导航栏插件advance_water_drop_nav_bar的使用

Flutter水滴导航栏插件advance_water_drop_nav_bar的使用

advance_water_drop_nav_bar 是一个基于 water_drop_nav_bar 的 Flutter 插件，用于实现带有水滴效果的导航栏。

开始使用

这个项目是一个 Flutter 插件包的起点，它包含了 Android 和/或 iOS 平台的具体实现代码。

对于 Flutter 开发的帮助，您可以查看 Flutter 官方文档，其中包含教程、示例、移动开发指南以及完整的 API 参考。

接下来，我们通过一个完整的示例来展示如何在 Flutter 应用中使用 advance_water_drop_nav_bar 插件。

示例代码

以下是 advance_water_drop_nav_bar 的使用示例：

import 'package:advance_water_drop_nav_bar/advance_water_drop_nav_bar.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

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

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

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      // debugShowCheckedModeBanner: false,
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        canvasColor: const Color.fromARGB(255, 232, 232, 232),
      ),
      home: const MyHomePage(),
    );
  }
}

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

  [@override](/user/override)
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  final Color navigationBarColor = Colors.white;
  int selectedIndex = 0;
  late PageController pageController;

  [@override](/user/override)
  void initState() {
    super.initState();
    pageController = PageController(initialPage: selectedIndex);
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    /// [AnnotatedRegion<SystemUiOverlayStyle>] 仅适用于 Android 黑色导航栏。3按钮导航控制（传统）

    return AnnotatedRegion<SystemUiOverlayStyle>(
      value: SystemUiOverlayStyle(
        systemNavigationBarColor: navigationBarColor,
        systemNavigationBarIconBrightness: Brightness.dark,
      ),
      child: Scaffold(
        // backgroundColor: Colors.grey,
        body: PageView(
          physics: const NeverScrollableScrollPhysics(),
          controller: pageController,
          children: [
            Container(
              alignment: Alignment.center,
              child: Icon(
                Icons.bookmark_rounded,
                size: 56,
                color: Colors.amber[400],
              ),
            ),
            Container(
              alignment: Alignment.center,
              child: Icon(
                Icons.favorite_rounded,
                size: 56,
                color: Colors.red[400],
              ),
            ),
            Container(
              alignment: Alignment.center,
              child: Icon(
                Icons.email_rounded,
                size: 56,
                color: Colors.green[400],
              ),
            ),
            Container(
              alignment: Alignment.center,
              child: Icon(
                Icons.folder_rounded,
                size: 56,
                color: Colors.blue[400],
              ),
            ),
          ],
        ),
        bottomNavigationBar: WaterDropNavBar(
          backgroundColor: navigationBarColor,
          onItemSelected: (int index) {
            setState(() {
              selectedIndex = index;
            });
            pageController.animateToPage(selectedIndex,
                duration: const Duration(milliseconds: 400),
                curve: Curves.easeOutQuad);
          },
          selectedIndex: selectedIndex,
          barItems: [
            BarItem(
              filledIcon: Icons.bookmark_rounded,
              outlinedIcon: Icons.bookmark_border_rounded,
              btext: "Bookmark"
            ),
            BarItem(
                filledIcon: Icons.favorite_rounded,
                outlinedIcon: Icons.favorite_border_rounded,
                btext: "Favorite",
            ),
            BarItem(
              filledIcon: Icons.email_rounded,
              outlinedIcon: Icons.email_outlined,
              btext: "Email"
            ),
            BarItem(
              filledIcon: Icons.folder_rounded,
              outlinedIcon: Icons.folder_outlined,
              btext: "Profile"
            ),
          ],
        ),
      ),
    );
  }
}