klx_teacher/KulexiuForTeacher/KulexiuForTeacher/Common/Base/KSTabBarViewController.m

//
//  KSTabBarViewController.m
//  KulexiuForTeacher
//
//  Created by Kyle on 2022/3/17.
//

#import "KSTabBarViewController.h"
#import "CustomNavViewController.h"
#import "KSBaseViewController.h"
#import "UIImage+Color.h"
#import "AnimationHelper.h"

@interface KSTabBarViewController ()<UITabBarControllerDelegate>

@end

@implementation KSTabBarViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.delegate = self;
    [self configItems];
}

- (void)configItems {
    NSArray *controllerArray = @[@"HomeViewController",@"CourseViewController",@"ChatViewController",@"ShopMallViewController",@"MineViewController"];
    NSArray *titleArray = @[@"首页",@"课表",@"聊天",@"商城",@"我的"];
    NSArray *imageArray = @[@"tab_home_unselected",@"tab_course_unselected",@"tab_chat_unselected",@"tab_mall_unselected",@"tab_mine_unselected"];
    NSArray *selectedImgArray = @[@"tab_home_selected",@"tab_course_selected",@"tab_chat_selected",@"tab_mall_selected",@"tab_mine_selected"];
    NSMutableArray *ctrlArray = [NSMutableArray array];
    for (NSInteger i = 0; i < controllerArray.count; i++) {
        CustomNavViewController *navCtrl = [self createNavControllerWithClassName:controllerArray[i] title:titleArray[i] imageName:imageArray[i] selectedImageName:selectedImgArray[i]];
        [ctrlArray addObject:navCtrl];
    }
    self.viewControllers = [NSArray arrayWithArray:ctrlArray];
    if (@available(iOS 13.0, *)) {
        [[UITabBar appearance] setUnselectedItemTintColor:HexRGB(0x808492)];
        [[UITabBar appearance] setTintColor:HexRGB(0x283240)];
    } else {
        [[UITabBarItem appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:HexRGB(0x808492),NSFontAttributeName:[UIFont systemFontOfSize:10 weight:UIFontWeightMedium]} forState:UIControlStateNormal];
        [[UITabBarItem appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:HexRGB(0x283240),NSFontAttributeName:[UIFont systemFontOfSize:10 weight:UIFontWeightMedium]} forState:UIControlStateSelected];
    }
    if (@available(iOS 15.0, *)) {
        // 适配Xcode 13 iOS 15tabbar透明的问题
        UITabBarAppearance * appearance = [[UITabBarAppearance alloc] init];
        [appearance configureWithOpaqueBackground];
        appearance.backgroundColor = UIColor.whiteColor;
        appearance.shadowImage = [UIImage imageWithColor:[UIColor clearColor]];
        [UITabBar appearance].scrollEdgeAppearance = appearance;
        [UITabBar appearance].standardAppearance = appearance;
    }
    [UITabBar appearance].backgroundColor = UIColor.whiteColor;
}

- (void)removeControllerNotifer {
    NSArray *controllerArray = self.viewControllers;
    for (CustomNavViewController *navCtrl in controllerArray) {
        UIViewController *ctrl = navCtrl.viewControllers[0];
        if ([ctrl isKindOfClass:[KSBaseViewController class]]) {
            KSBaseViewController *baseCtrl = (KSBaseViewController *)ctrl;
            [baseCtrl removeNotifier];
        }
    }
}

- (CustomNavViewController *)createNavControllerWithClassName:(NSString *)className title:(NSString *)title imageName:(NSString *)imageName selectedImageName:(NSString *)selectedImageName {
    KSBaseViewController *controller = [[NSClassFromString(className) alloc] init];
    controller.title = title;
    controller.tabBarItem.title = title;
    controller.tabBarItem.image = [[UIImage imageNamed:imageName] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
    controller.tabBarItem.selectedImage = [[UIImage imageNamed:selectedImageName] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
    [controller.tabBarItem setTitleTextAttributes:@{NSForegroundColorAttributeName:HexRGB(0x808492),NSFontAttributeName:[UIFont systemFontOfSize:10 weight:UIFontWeightMedium]} forState:UIControlStateNormal];
    [controller.tabBarItem setTitleTextAttributes:@{NSForegroundColorAttributeName:HexRGB(0x283240),NSFontAttributeName:[UIFont systemFontOfSize:10 weight:UIFontWeightMedium]} forState:UIControlStateSelected];
    CustomNavViewController *navCtrl= [[CustomNavViewController alloc] initWithRootViewController:controller];
    return navCtrl;
}

- (void)tabBarSelectedWithIndex:(NSInteger)index {
    [self setSelectedIndex:index];
}

- (void)noteNewsWithIndex:(NSInteger)index count:(NSInteger)count { //提醒
    UITabBarItem * tabBarItem = self.tabBar.items[index];
    if (count == 0) {
        [tabBarItem setBadgeValue:nil];// 隐藏角标
    }else if (count > 99) {
        [tabBarItem setBadgeValue:@"99+"];
        
    } else {
        [tabBarItem setBadgeValue:[NSString stringWithFormat:@"%zd",count]];
    }
}

- (void)clearNewsWithIndex:(NSInteger)index {  //清除
    UITabBarItem * tabBarItem = self.tabBar.items[index];
    [tabBarItem setBadgeValue:nil];
}

#pragma mark ----- UITabBarControllerDelegate
- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController {
    [self setAnaimationWithTabBarController:tabBarController selectViewController:viewController];
}
- (void)setAnaimationWithTabBarController:(UITabBarController *)tabBarController selectViewController:(UIViewController *)viewController {
    //1.
    NSInteger index = [tabBarController.viewControllers indexOfObject:viewController];
    __block NSMutableArray <UIView *>*tabBarSwappableImageViews = [NSMutableArray arrayWithCapacity:4];
    //2.
    for (UIView *tempView in tabBarController.tabBar.subviews) {
        if ([tempView isKindOfClass:NSClassFromString(@"UITabBarButton")]) {
            for (UIImageView *tempImageView in tempView.subviews) {
                if ([tempImageView isKindOfClass:NSClassFromString(@"UITabBarSwappableImageView")]) {
                    [tabBarSwappableImageViews addObject:tempImageView];
                }
            }
        }
    }
    //3.
    __block UIView *currentTabBarSwappableImageView = tabBarSwappableImageViews[index];
    [AnimationHelper lottieAnimation:currentTabBarSwappableImageView index:index];
}
/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end