problem_check_system/lib/modules/home/views/home_page.dart

// lib/modules/home/views/home_page.dart

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:problem_check_system/modules/home/controllers/home_controller.dart';

class HomePage extends GetView<HomeController> {
  const HomePage({super.key});

  @override
  Widget build(BuildContext context) {
    return Obx(
      () => Scaffold(
        body: controller.pages[controller.selectedIndex.value],

        // 1. 将 BottomNavigationBar 替换为 NavigationBar
        bottomNavigationBar: NavigationBar(
          // 2. 将 'currentIndex' 属性重命名为 'selectedIndex'
          selectedIndex: controller.selectedIndex.value,

          // 3. 将 'onTap' 属性重命名为 'onDestinationSelected'
          onDestinationSelected: controller.changeIndex,
          // M3 风格调整 (可选, 但推荐)
          // 动画时长
          animationDuration: const Duration(milliseconds: 800),

          // 4. 将 'items' 替换为 'destinations'，并使用 NavigationDestination
          destinations: const [
            NavigationDestination(
              // M3 的一个重要特性是区分选中和未选中的图标
              icon: Icon(Icons.home_outlined, color: Colors.blue),
              selectedIcon: Icon(Icons.home, color: Colors.blue),
              label: '企业',
            ),
            NavigationDestination(
              icon: Icon(Icons.now_widgets_outlined, color: Colors.blue),
              selectedIcon: Icon(Icons.now_widgets, color: Colors.blue),
              label: '全部问题',
            ),
            NavigationDestination(
              icon: Icon(Icons.person_outline, color: Colors.blue),
              selectedIcon: Icon(Icons.person, color: Colors.blue),
              label: '我的',
            ),
          ],
        ),
      ),
    );
  }
}