/** *  初始化所有的子控制器 */- (void)setupAllChildViewControllers{        UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main" bundle:[NSBundle mainBundle]];    GFBHomeVC *firstViewController = [sb instantiateViewControllerWithIdentifier:@"GFBHomeVC"];    [self setupChildViewController:firstViewController title:@"首页" tabBarTitle:@"首页" imageName:@"icon_home_normal" selectedImageName:@"icon_home_selected"];        GFBTypesVC *secondViewController = [sb instantiateViewControllerWithIdentifier:@"GFBTypesVC"];    [self setupChildViewController:secondViewController title:@"分类" tabBarTitle:@"分类" imageName:@"iocn_classification_normal" selectedImageName:@"iocn_classification_selected"];        GoodsListVC *thirdViewController = [[GoodsListVC alloc] init];    [self setupChildViewController:thirdViewController title:@"购物车" tabBarTitle:@"购物车" imageName:@"icon_shopping-cart_normal" selectedImageName:@"icon_shopping-cart_selected"];        GFBMineVC *fourthViewController = [sb instantiateViewControllerWithIdentifier:@"GFBMineVC"];    [self setupChildViewController:fourthViewController title:@"个人中心" tabBarTitle:@"个人中心" imageName:@"icon_personal-center_normal" selectedImageName:@"icon_personal-center_selected"];}/** *  初始化一个子控制器 * *  @param childVc           需要初始化的子控制器 *  @param title             标题 *  @param imageName         图标 *  @param selectedImageName 选中的图标 */- (void)setupChildViewController:(UIViewController *)childVc title:(NSString *)title tabBarTitle:(NSString *)tabBarTitle imageName:(NSString *)imageName selectedImageName:(NSString *)selectedImageName{    // 1.设置控制器的属性    childVc.navigationItem.title = title;    // 设置图标    childVc.tabBarItem.image = [UIImage imageNamed:imageName];    childVc.tabBarItem.title = tabBarTitle;        // 设置选中的图标    UIImage *selectedImage = [UIImage imageNamed:selectedImageName];        childVc.tabBarItem.selectedImage = [selectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];        UIImage *normalImage = [UIImage imageNamed:imageName];    childVc.tabBarItem.image = [normalImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];            UINavigationController *nav;    if([childVc isKindOfClass:[GFBMineVC class]]) {        nav = [[KLTNavigationController alloc]initWithRootViewController:childVc];    }else {        // 2.包装一个导航控制器        nav = [[GFBBaseNaVC alloc] initWithRootViewController:childVc];    }    [self addChildViewController:nav];    }复制代码