cdts/xdts-ios 3/TreeHole/CYHResetCode/THBaseViewController/THTabBar/THTabBarViewController.m

//
//  THTabBarViewController.m
//  TreeHole
//
//  Created by iOS on 2023/1/31.
//  
//

#import "THTabBarViewController.h"
#import "THViewController.h"
#import "THNavigationController.h"

@interface THTabBarViewController ()



@end

@implementation THTabBarViewController

/*
- (instancetype)init {
   if (!(self = [super init])) {
       return nil;
   }
   /**
    * 以下两行代码目的在于手动设置让TabBarItem只显示图标，不显示文字，并让图标垂直居中。
    * 等效于在 `-tabBarItemsAttributesForController` 方法中不传 `CYLTabBarItemTitle` 字段。
    * 更推荐后一种做法。
    
   UIEdgeInsets imageInsets = UIEdgeInsetsZero;//UIEdgeInsetsMake(4.5, 0, -4.5, 0);
   UIOffset titlePositionAdjustment = UIOffsetMake(0, -3.5);
    CYLTabBarController *tabBarController = [CYLTabBarController tabBarControllerWithViewControllers:self.viewControllers tabBarItemsAttributes:self.tabBarItemsAttributesForController imageInsets:imageInsets titlePositionAdjustment:titlePositionAdjustment context:nil];
//    tabBarController.tabBarHeight = 49;
    [self customizeTabBarAppearanceWithTitlePositionAdjustment:titlePositionAdjustment];
//   [self customizeTabBarAppearance:tabBarController];
//   self.navigationController.navigationBar.hidden = YES;
   return tabBarController;
}

- (NSArray *)viewControllers {
    THViewController *homeVC = [[THViewController alloc] init];
    homeVC.view.backgroundColor = [UIColor qmui_randomColor];
    UIViewController *homeNav = [[THNavigationController alloc] initWithRootViewController:homeVC];
//    [homeVC cyl_setHideNavigationBarSeparator:YES];
    
    THViewController *nearVC = [[THViewController alloc] init];
    nearVC.view.backgroundColor = [UIColor qmui_randomColor];
    UIViewController *nearNav = [[THNavigationController alloc] initWithRootViewController:nearVC];
//    [nearVC cyl_setHideNavigationBarSeparator:YES];
    
    NSArray *viewControllers = @[
        homeNav,
        nearNav,
    ];
   return viewControllers;
}

- (NSArray *)tabBarItemsAttributesForController {
   NSDictionary *firstTabBarItemsAttributes = @{
       CYLTabBarItemTitle : @"首页",
       CYLTabBarItemImage : @"TH_TabBarBaseLocalNormal",
        CYLTabBarItemSelectedImage : @"TH_TabBarBaseLocalSelected",
   };
   NSDictionary *secondTabBarItemsAttributes = @{
       CYLTabBarItemTitle : @"鱼塘",
       CYLTabBarItemImage :@"TH_TabBarMsgNormal",
       CYLTabBarItemSelectedImage : @"TH_TabBarMsgSelected",
   };
//    NSDictionary *thirdTabBarItemsAttributes = @{
//        CYLTabBarItemTitle : @"我的",
//        CYLTabBarItemImage :@"fishpond_normal",
//        CYLTabBarItemSelectedImage : @"fishpond_highlight",
//    };
   NSArray *tabBarItemsAttributes = @[
       firstTabBarItemsAttributes,
       secondTabBarItemsAttributes,
//       thirdTabBarItemsAttributes
   ];
   return tabBarItemsAttributes;
}

/**
 *  更多TabBar自定义设置：比如：tabBarItem 的选中和不选中文字和背景图片属性、tabbar 背景图片属性等等
 
- (void)customizeTabBarAppearanceWithTitlePositionAdjustment:(UIOffset)titlePositionAdjustment {
    // Customize UITabBar height
    // 自定义 TabBar 高度
    // tabBarController.tabBarHeight = CYL_IS_IPHONE_X ? 65 : 40;
    
    [self rootWindow].backgroundColor = [UIColor cyl_systemBackgroundColor];
    
    // set the text color for unselected state
    // 普通状态下的文字属性
    NSMutableDictionary *normalAttrs = [NSMutableDictionary dictionary];
    normalAttrs[NSForegroundColorAttributeName] = [UIColor cyl_systemGrayColor];
    //normalAttrs[NSFontAttributeName] = [UIFont systemFontOfSize:10];
    
    // set the text color for selected state
    // 选中状态下的文字属性
    NSMutableDictionary *selectedAttrs = [NSMutableDictionary dictionary];
    selectedAttrs[NSForegroundColorAttributeName] = [UIColor cyl_labelColor];
    //selectedAttrs[NSFontAttributeName] = [UIFont systemFontOfSize:10];

    // Set the dark color to selected tab (the dimmed background)
    // TabBarItem选中后的背景颜色
    // [self customizeTabBarSelectionIndicatorImage];
    
    // update TabBar when TabBarItem width did update
    // If your app need support UIDeviceOrientationLandscapeLeft or UIDeviceOrientationLandscapeRight，
    // remove the comment '//'
    // 如果你的App需要支持横竖屏，请使用该方法移除注释 '//'
//     [self updateTabBarCustomizationWhenTabBarItemWidthDidUpdate];
    
    // set background color
    // 设置 TabBar 背景
    // 半透明
//    [UITabBar appearance].translucent = YES;
    // [UITabBar appearance].barTintColor = [UIColor cyl_systemBackgroundColor];
    // [[UITabBar appearance] setBackgroundColor:[UIColor cyl_systemBackgroundColor]];
    
    
    //     [[UITabBar appearance] setBackgroundImage:[[self class] imageWithColor:[UIColor whiteColor] size:CGSizeMake([UIScreen mainScreen].bounds.size.width, tabBarController.tabBarHeight ?: (CYL_IS_IPHONE_X ? 65 : 40))]];
    //    [[UITabBar appearance] setUnselectedItemTintColor:[UIColor systemGrayColor]];
    
    //Three way to deal with shadow 三种阴影处理方式：
    // NO.3, without shadow : use -[[CYLTabBarController hideTabBarShadowImageView] in CYLMainRootViewController.m
    
    // NO.2，using layer to add shadow.
    //    CYLTabBarController *tabBarController = [self cyl_tabBarController];
    //    tabBarController.tabBar.layer.shadowColor = [UIColor blackColor].CGColor;
    //    tabBarController.tabBar.layer.shadowRadius = 15.0;
    //    tabBarController.tabBar.layer.shadowOpacity = 1;
    //    tabBarController.tabBar.layer.shadowOffset = CGSizeMake(0, 3);
    //    tabBarController.tabBar.layer.masksToBounds = NO;
    //    tabBarController.tabBar.clipsToBounds = NO;
    
    // NO.1，using Image note:recommended.推荐方式
    // set the bar shadow image
    // without shadow : use -[[CYLTabBarController hideTabBarShadowImageView] in CYLMainRootViewController.m
    if (@available(iOS 13.0, *)) {
        UITabBarItemAppearance *inlineLayoutAppearance = [[UITabBarItemAppearance  alloc] init];
        // fix https://github.com/ChenYilong/CYLTabBarController/issues/456
        inlineLayoutAppearance.normal.titlePositionAdjustment = titlePositionAdjustment;

        // set the text Attributes
        // 设置文字属性
        [inlineLayoutAppearance.normal setTitleTextAttributes:normalAttrs];
        [inlineLayoutAppearance.selected setTitleTextAttributes:selectedAttrs];

        UITabBarAppearance *standardAppearance = [[UITabBarAppearance alloc] init];
        standardAppearance.stackedLayoutAppearance = inlineLayoutAppearance;
        standardAppearance.backgroundColor = [UIColor cyl_systemBackgroundColor];
        //shadowColor和shadowImage均可以自定义颜色, shadowColor默认高度为1, shadowImage可以自定义高度.
        standardAppearance.shadowColor = [UIColor cyl_systemGreenColor];
        // standardAppearance.shadowImage = [[self class] imageWithColor:[UIColor cyl_systemGreenColor] size:CGSizeMake([UIScreen mainScreen].bounds.size.width, 1)];
        self.tabBar.standardAppearance = standardAppearance;
    } else {
        // Override point for customization after application launch.
        // set the text Attributes
        // 设置文字属性
        UITabBarItem *tabBar = [UITabBarItem appearance];
        [tabBar setTitleTextAttributes:normalAttrs forState:UIControlStateNormal];
        [tabBar setTitleTextAttributes:selectedAttrs forState:UIControlStateSelected];
        
        // This shadow image attribute is ignored if the tab bar does not also have a custom background image.So at least set somthing.
        [[UITabBar appearance] setBackgroundImage:[[UIImage alloc] init]];
//        [[UITabBar appearance] setShadowImage:[[UIImage alloc] qmui_imageWithTintColor:UIColor.redColor] size:CGSizeMake([UIScreen mainScreen].bounds.size.width, 1)]];
    }
}
*/

@end