iOS 刪除系統內建的tabbar

一、刪除系統內建的tabbar

在開發中，我們時常會需要自己定義tabbar，使用自訂tabbar時，返回或者跳轉時會遇到tabbar重影的現象，這個時候我們需要將系統的tabbar

// 實現navigationController的代理方法- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated{    // 刪除系統內建的tabBarButton    for (UIView *tabBar in self.tabBarController.tabBar.subviews) {        if ([tabBar isKindOfClass:NSClassFromString(@"UITabBarButton")]) {            [tabBar removeFromSuperview];        }    }}

二、設定自訂tabbar的選中效果

MainTabBarViewController * tabBarController = (MainTabBarViewController *)self.navigationController.tabBarController;    tabBarController.selectedIndex = 0;    tabBarController.customTabBar.selectedButton.selected = NO;    for (UIView *child in tabBarController.customTabBar.subviews) {        if ([child isKindOfClass:[MainTabBarButton class]]) {            if (child.tag == 0) {                tabBarController.customTabBar.selectedButton = (MainTabBarButton *)child;                tabBarController.customTabBar.selectedButton.selected = YES;            }        }    }