AbroadLocation/lib/module/main/main_controller.dart

import 'package:abroad_location/base/base_controller.dart';
import 'package:abroad_location/module/location/location_view.dart';
import 'package:abroad_location/module/urgent/urgent_view.dart';
import 'package:abroad_location/resource/assets.gen.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:injectable/injectable.dart';

import '../friend/friend_view.dart';

@injectable
class MainController extends BaseController with GetSingleTickerProviderStateMixin {
  List<TabData> tabData = [
    TabData(Assets.images.iconMainTabLocationSelected.provider(),
        Assets.images.iconMainTabLocationUnselect.provider(), LocationView()),
    TabData(Assets.images.iconMainTabFriendSelected.provider(),
        Assets.images.iconMainTabFriendUnselect.provider(), FriendView()),
    TabData(Assets.images.iconMainTabUrgentSelected.provider(),
        Assets.images.iconMianTabUrgentUnselect.provider(), UrgentView()),
  ];

  final RxInt _currentIndex = 0.obs;

  int get currentIndex => _currentIndex.value;

  late TabController tabController = TabController(
  length: tabData.length, vsync: this, initialIndex: _currentIndex.value);

  @override
  onReady() {
    precacheTabIcon();
  }


  onTabClick(int index) {
    tabController.animateTo(index);
    _currentIndex.value = index;
  }

  void precacheTabIcon() {
    for (var tab in tabData) {
      precacheImage(tab.selectIcon, Get.context!);
      precacheImage(tab.unSelectIcon, Get.context!);
    }
  }

  @override
  void onClose() {
    super.onClose();
    tabController.dispose();
  }
}

class TabData {
  ImageProvider selectIcon;

  ImageProvider unSelectIcon;

  Widget page;

  TabData(this.selectIcon, this.unSelectIcon, this.page);
}