添加渐变色
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@@ -7,132 +7,215 @@
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#import "BaseTabBarController.h"
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#import "HomeMainVC.h"
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#import "MyVC.h"
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#import "KBShopVC.h"
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#import "KBAiMainVC.h"
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#import "KBShopVC.h"
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#import "MyVC.h"
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//#import "KBCommunityVC.h"
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// #import "KBCommunityVC.h"
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#import "BaseNavigationController.h"
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#import "KBAuthManager.h"
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@interface BaseTabBarController ()
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/// 原始的 TabBar appearance（用于恢复）
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@property(nonatomic, strong)
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UITabBarAppearance *originalAppearance API_AVAILABLE(ios(13.0));
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@property(nonatomic, strong)
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UITabBarAppearance *transparentAppearance API_AVAILABLE(ios(13.0));
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@end
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@implementation BaseTabBarController
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- (void)viewDidLoad {
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[super viewDidLoad];
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[super viewDidLoad];
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self.delegate = self;
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self.delegate = self;
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[self setupTabbarAppearance];
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[self setupTabbarAppearance];
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// 组装 4 个 Tab：首页 / 商城 / 社区 / 我的
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// 图标位于 Assets.xcassets/Tabbar 下：tab_home/tab_home_selected 等
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// 组装 4 个 Tab：首页 / 商城 / 社区 / 我的
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// 图标位于 Assets.xcassets/Tabbar 下：tab_home/tab_home_selected 等
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// 首页
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HomeMainVC *home = [[HomeMainVC alloc] init];
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BaseNavigationController *navHome = [[BaseNavigationController alloc] initWithRootViewController:home];
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navHome.tabBarItem = [self tabItemWithTitle:KBLocalized(@"Home")
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// 首页
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HomeMainVC *home = [[HomeMainVC alloc] init];
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BaseNavigationController *navHome =
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[[BaseNavigationController alloc] initWithRootViewController:home];
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navHome.tabBarItem = [self tabItemWithTitle:KBLocalized(@"Home")
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image:@"tab_home"
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selectedImg:@"tab_home_selected"];
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// 商城
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KBShopVC *shop = [[KBShopVC alloc] init];
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BaseNavigationController *navShop = [[BaseNavigationController alloc] initWithRootViewController:shop];
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navShop.tabBarItem = [self tabItemWithTitle:KBLocalized(@"Shop")
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// 商城
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KBShopVC *shop = [[KBShopVC alloc] init];
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BaseNavigationController *navShop =
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[[BaseNavigationController alloc] initWithRootViewController:shop];
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navShop.tabBarItem = [self tabItemWithTitle:KBLocalized(@"Shop")
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image:@"tab_shop"
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selectedImg:@"tab_shop_selected"];
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// AI
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KBAiMainVC *aiMainVC = [[KBAiMainVC alloc] init];
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// community.title = KBLocalized(@"Circle");
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BaseNavigationController *navCommunity = [[BaseNavigationController alloc] initWithRootViewController:aiMainVC];
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navCommunity.tabBarItem = [self tabItemWithTitle:KBLocalized(@"Circle")
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// AI
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KBAiMainVC *aiMainVC = [[KBAiMainVC alloc] init];
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// community.title = KBLocalized(@"Circle");
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BaseNavigationController *navCommunity =
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[[BaseNavigationController alloc] initWithRootViewController:aiMainVC];
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navCommunity.tabBarItem = [self tabItemWithTitle:KBLocalized(@"Circle")
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image:@"tab_shequ"
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selectedImg:@"tab_shequ_selected"];
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// 我的
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MyVC *my = [[MyVC alloc] init];
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BaseNavigationController *navMy = [[BaseNavigationController alloc] initWithRootViewController:my];
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navMy.tabBarItem = [self tabItemWithTitle:KBLocalized(@"Mine")
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image:@"tab_my"
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selectedImg:@"tab_my_selected"];
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// 我的
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MyVC *my = [[MyVC alloc] init];
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BaseNavigationController *navMy =
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[[BaseNavigationController alloc] initWithRootViewController:my];
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navMy.tabBarItem = [self tabItemWithTitle:KBLocalized(@"Mine")
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image:@"tab_my"
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selectedImg:@"tab_my_selected"];
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self.viewControllers = @[aiMainVC,navHome, navShop, navMy];
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// 测试储存Token
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// [[KBAuthManager shared] saveAccessToken:@"TEST" refreshToken:nil expiryDate:[NSDate dateWithTimeIntervalSinceNow:3600] userIdentifier:nil];
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// [[KBAuthManager shared] signOut];
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self.viewControllers = @[ navHome, navShop, aiMainVC, navMy ];
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// 测试储存Token
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// [[KBAuthManager shared] saveAccessToken:@"TEST" refreshToken:nil
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// expiryDate:[NSDate dateWithTimeIntervalSinceNow:3600]
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// userIdentifier:nil];
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// [[KBAuthManager shared] signOut];
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}
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- (void)setupTabbarAppearance{
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// 让 TabBar 不透明，子控制器 view 不再延伸到 TabBar 下
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self.tabBar.translucent = NO;
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if (@available(iOS 15.0, *)) {
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UITabBarAppearance *a = [UITabBarAppearance new];
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[a configureWithOpaqueBackground];
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a.backgroundColor = [UIColor whiteColor];
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// 设置选中标题为黑色（iOS 15+ 需通过 appearance）
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NSDictionary *selAttr = @{ NSForegroundColorAttributeName : [UIColor blackColor] };
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a.stackedLayoutAppearance.selected.titleTextAttributes = selAttr;
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a.inlineLayoutAppearance.selected.titleTextAttributes = selAttr;
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a.compactInlineLayoutAppearance.selected.titleTextAttributes = selAttr;
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self.tabBar.standardAppearance = a;
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self.tabBar.scrollEdgeAppearance = a;
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} else if (@available(iOS 13.0, *)) {
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UITabBarAppearance *a = [UITabBarAppearance new];
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[a configureWithOpaqueBackground];
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a.backgroundColor = [UIColor whiteColor];
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NSDictionary *selAttr = @{ NSForegroundColorAttributeName : [UIColor blackColor] };
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a.stackedLayoutAppearance.selected.titleTextAttributes = selAttr;
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a.inlineLayoutAppearance.selected.titleTextAttributes = selAttr;
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a.compactInlineLayoutAppearance.selected.titleTextAttributes = selAttr;
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self.tabBar.standardAppearance = a;
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self.tabBar.tintColor = [UIColor blackColor];
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} else {
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// 老系统用 tintColor/appearance 做回退
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self.tabBar.tintColor = [UIColor blackColor];
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[[UITabBarItem appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor blackColor]}
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forState:UIControlStateSelected];
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}
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- (void)setupTabbarAppearance {
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// 让 TabBar 不透明，子控制器 view 不再延伸到 TabBar 下
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self.tabBar.translucent = NO;
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if (@available(iOS 15.0, *)) {
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UITabBarAppearance *a = [UITabBarAppearance new];
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[a configureWithOpaqueBackground];
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a.backgroundColor = [UIColor whiteColor];
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// 设置选中标题为黑色（iOS 15+ 需通过 appearance）
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NSDictionary *selAttr =
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@{NSForegroundColorAttributeName : [UIColor blackColor]};
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a.stackedLayoutAppearance.selected.titleTextAttributes = selAttr;
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a.inlineLayoutAppearance.selected.titleTextAttributes = selAttr;
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a.compactInlineLayoutAppearance.selected.titleTextAttributes = selAttr;
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self.tabBar.standardAppearance = a;
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self.tabBar.scrollEdgeAppearance = a;
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// 保存原始 appearance
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self.originalAppearance = a;
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// 创建透明 appearance
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UITabBarAppearance *transparentA = [UITabBarAppearance new];
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[transparentA configureWithTransparentBackground];
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transparentA.backgroundColor = [UIColor clearColor];
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transparentA.stackedLayoutAppearance.selected.titleTextAttributes = selAttr;
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transparentA.inlineLayoutAppearance.selected.titleTextAttributes = selAttr;
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transparentA.compactInlineLayoutAppearance.selected.titleTextAttributes =
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selAttr;
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self.transparentAppearance = transparentA;
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} else if (@available(iOS 13.0, *)) {
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UITabBarAppearance *a = [UITabBarAppearance new];
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[a configureWithOpaqueBackground];
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a.backgroundColor = [UIColor whiteColor];
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NSDictionary *selAttr =
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@{NSForegroundColorAttributeName : [UIColor blackColor]};
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a.stackedLayoutAppearance.selected.titleTextAttributes = selAttr;
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a.inlineLayoutAppearance.selected.titleTextAttributes = selAttr;
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a.compactInlineLayoutAppearance.selected.titleTextAttributes = selAttr;
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self.tabBar.standardAppearance = a;
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self.tabBar.tintColor = [UIColor blackColor];
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// 保存原始 appearance
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self.originalAppearance = a;
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// 创建透明 appearance
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UITabBarAppearance *transparentA = [UITabBarAppearance new];
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[transparentA configureWithTransparentBackground];
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transparentA.backgroundColor = [UIColor clearColor];
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transparentA.stackedLayoutAppearance.selected.titleTextAttributes = selAttr;
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transparentA.inlineLayoutAppearance.selected.titleTextAttributes = selAttr;
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transparentA.compactInlineLayoutAppearance.selected.titleTextAttributes =
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selAttr;
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self.transparentAppearance = transparentA;
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} else {
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// 老系统用 tintColor/appearance 做回退
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self.tabBar.tintColor = [UIColor blackColor];
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[[UITabBarItem appearance] setTitleTextAttributes:@{
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NSForegroundColorAttributeName : [UIColor blackColor]
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}
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forState:UIControlStateSelected];
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}
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}
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// 统一构造 TabBarItem，原图渲染，避免被系统 Tint 着色
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- (UITabBarItem *)tabItemWithTitle:(NSString *)title image:(NSString *)imageName selectedImg:(NSString *)selectedName {
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UIImage *img = [[UIImage imageNamed:imageName] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
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UIImage *sel = [[UIImage imageNamed:selectedName] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
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UITabBarItem *item = [[UITabBarItem alloc] initWithTitle:title image:img selectedImage:sel];
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return item;
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- (UITabBarItem *)tabItemWithTitle:(NSString *)title
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image:(NSString *)imageName
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selectedImg:(NSString *)selectedName {
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UIImage *img = [[UIImage imageNamed:imageName]
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imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
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UIImage *sel = [[UIImage imageNamed:selectedName]
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imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
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UITabBarItem *item = [[UITabBarItem alloc] initWithTitle:title
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image:img
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selectedImage:sel];
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return item;
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}
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#pragma mark - UITabBarControllerDelegate
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- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController {
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// 已经是当前选中的 tab，直接允许（避免重复拦截）
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if (tabBarController.selectedViewController == viewController) {
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return YES;
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}
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NSUInteger index = [tabBarController.viewControllers indexOfObject:viewController];
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if (index == NSNotFound) {
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return YES;
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}
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// “我的” tab 默认为第 4 个（索引 3），未登录时先跳转登录页
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if ((index == 1 || index == 2) && ![KBUserSessionManager shared].isLoggedIn) {
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[[KBUserSessionManager shared] goLoginVC];
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return NO;
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}
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- (BOOL)tabBarController:(UITabBarController *)tabBarController
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shouldSelectViewController:(UIViewController *)viewController {
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// 已经是当前选中的 tab，直接允许（避免重复拦截）
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if (tabBarController.selectedViewController == viewController) {
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return YES;
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}
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NSUInteger index =
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[tabBarController.viewControllers indexOfObject:viewController];
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if (index == NSNotFound) {
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return YES;
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}
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// “我的” tab 默认为第 4 个（索引 3），未登录时先跳转登录页
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if ((index == 1 || index == 2) && ![KBUserSessionManager shared].isLoggedIn) {
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[[KBUserSessionManager shared] goLoginVC];
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return NO;
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}
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return YES;
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}
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- (void)tabBarController:(UITabBarController *)tabBarController
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didSelectViewController:(UIViewController *)viewController {
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NSUInteger index =
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[tabBarController.viewControllers indexOfObject:viewController];
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// 第三个 tab（索引2）是 KBAiMainVC，背景透明
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if (index == 2) {
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if (@available(iOS 13.0, *)) {
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self.tabBar.standardAppearance = self.transparentAppearance;
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if (@available(iOS 15.0, *)) {
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self.tabBar.scrollEdgeAppearance = self.transparentAppearance;
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}
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} else {
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// iOS 13 以下，直接设置背景色
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self.tabBar.barTintColor = [UIColor clearColor];
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self.tabBar.backgroundColor = [UIColor clearColor];
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}
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} else {
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// 其他 tab，恢复原始背景
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if (@available(iOS 13.0, *)) {
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self.tabBar.standardAppearance = self.originalAppearance;
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if (@available(iOS 15.0, *)) {
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self.tabBar.scrollEdgeAppearance = self.originalAppearance;
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}
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} else {
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// iOS 13 以下，恢复白色背景
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self.tabBar.barTintColor = [UIColor whiteColor];
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self.tabBar.backgroundColor = [UIColor whiteColor];
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}
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}
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}
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/*
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#pragma mark - Navigation
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// In a storyboard-based application, you will often want to do a little preparation before navigation
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// In a storyboard-based application, you will often want to do a little
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preparation before navigation
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- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
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// Get the new view controller using [segue destinationViewController].
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// Pass the selected object to the new view controller.
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