tuiche/lib/pages/main_bottom/main_page_bottom_change.dart

import 'dart:async';
import 'dart:io';

import 'package:ef/ef.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_svg/svg.dart';
import 'package:vbvs_app/common/util/FitTool.dart';
import 'package:vbvs_app/common/util/MyUtils.dart';
import 'package:vbvs_app/controller/main_bottom/global_controller.dart';
import 'package:vbvs_app/controller/main_bottom/main_page_controller.dart';
import 'package:vbvs_app/controller/theme_controller/ThemeController.dart';
import 'package:vbvs_app/pages/main_bottom/e_page.dart';
import 'package:vbvs_app/pages/main_bottom/home_page.dart';
import 'package:vbvs_app/pages/main_bottom/message_page.dart';
import 'package:vbvs_app/pages/main_bottom/mine_page.dart';

class MainPageBottomChange extends GetView<MainPageController> {
  GlobalController globalController = Get.find();
  ThemeController themeController = Get.find();
  getBottomNavigationBarItem(String svgPath, String actSvgPath, String label,
      {double size = 0, bool isEmpty = false}) {
    if (size == 0) {
      size = 36.rpx;
    }
    return BottomNavigationBarItem(
        icon: Padding(
          padding: EdgeInsets.only(bottom: 6.rpx),
          child: isEmpty
              ? Container()
              : SvgPicture.asset(
                  actSvgPath,
                  width: size,
                  height: size,
                ),
        ),   
        activeIcon: Padding(
          padding: EdgeInsets.only(bottom: 6.rpx),
          child: isEmpty
              ? Container()
              : SvgPicture.asset(
                  svgPath,
                  width: size,
                  height: size,
                ),
        ),
        label: label);
  }

  List arr = [
    HomePage(),
    // SleepReportPage(),
    EPage(),
    MessagePage(),
    MinePage(),
  ];

  DateTime? _lastBackPressedTime; // 记录上一次返回的时间
  @override
  Widget build(BuildContext context) {
    return PopScope(
      canPop: false,
      onPopInvokedWithResult: (disposition, result) async {
        if (Platform.isAndroid) {
          var flag = await _handleBackPressed(context); // 自定义返回逻辑
          if (flag) {
            SystemNavigator.pop();
          }
        }
      },
      child: Obx(
        () {
          if (globalController.model.hideBottomNavigationBar == true) {
            return Scaffold(
              body: arr[controller.model.currentIndex],
              floatingActionButtonAnimator:
                  FloatingActionButtonAnimator.noAnimation,
              floatingActionButton: Container(),
            );
          } else {
            return Container(
              decoration: BoxDecoration(
                image: DecorationImage(
                  image: AssetImage('assets/img/bgImage.png'), // 本地图片
                  fit: BoxFit.fill, // 填满整个 Container
                ),
              ),
              child: Scaffold(
                backgroundColor: Colors.transparent,
                body: arr[controller.model.currentIndex],
                floatingActionButtonAnimator:
                    FloatingActionButtonAnimator.noAnimation,
                floatingActionButtonLocation:
                    FloatingActionButtonLocation.centerDocked,
                bottomNavigationBar: Theme(
                  data: ThemeData(
                      splashFactory: NoSplash.splashFactory,
                      highlightColor: Colors.transparent),
                  child: BottomNavigationBar(
                    unselectedItemColor: themeController.currentColor.sc4,
                    selectedItemColor: themeController.currentColor.sc1,
                    backgroundColor: themeController.currentColor.sc5,
                    selectedFontSize: 26.rpx,
                    unselectedFontSize: 26.rpx,
                    type: BottomNavigationBarType.fixed,
                    currentIndex: controller.model.currentIndex,
                    onTap: (index) {
                      Future.delayed(const Duration(milliseconds: 500), () {
                        if (controller.model.currentIndex != 1) {
                          globalController.model.hideBottomNavigationBar =
                              false;
                          globalController.updateAll();
                        }
                      });
                      controller.model.currentIndex = index;
                      controller.updateAll();
                    },
                    items: [
                      getBottomNavigationBarItem("assets/img/menu/home.svg",
                          "assets/img/menu/n_home.svg", "菜单.首页".tr),
                      // getBottomNavigationBarItem("assets/img/menu/report.svg",
                      //     "assets/img/menu/n_report.svg", "菜单.报告".tr),
                      getBottomNavigationBarItem("assets/img/menu/e.svg",
                          "assets/img/menu/n_e.svg", "菜单.小e".tr),
                      getBottomNavigationBarItem("assets/img/menu/message.svg",
                          "assets/img/menu/n_message.svg", "菜单.消息".tr),
                      getBottomNavigationBarItem("assets/img/menu/mine.svg",
                          "assets/img/menu/n_mine.svg", "菜单.我的".tr),
                    ],
                  ),
                ),
              ),
            );
          }
        },
      ),
    );
  }

  Future<bool> _handleBackPressed(BuildContext context) async {
    final currentTime = DateTime.now();

    // 如果上次点击返回键时间为空，或者间隔超过 1 秒
    if (_lastBackPressedTime == null ||
        currentTime.difference(_lastBackPressedTime!) > Duration(seconds: 2)) {
      _lastBackPressedTime = currentTime;
      showToast("再按一次退出程序", color: color_warning, closeTime: 2);
      return false; // 阻止退出程序
    } else {
      return true; // 允许退出程序
    }
  }
}