从选项卡栏控制器中完全删除所有视图控制器
我想从选项卡栏控制器中完全删除所有视图控制器，无论它是否包含，并添加新的视图控制器 在运行时进入 tababr 控制器？可以这样做吗？我已经做了如下，它没有给出输出？
UIViewController *thisIsTheViewControllerIWantToSetNow;
int indexForViewControllerYouWantToReplace;
NSMutableArray *tabbarViewControllers = [self. tabController.viewControllers mutableCopy];
[tabbarViewControllers removeAllObjects];
self.tabController.viewControllers = [NSArray arrayWithObjects:self.moreNavController, self.logInNavController, nil];;
I want to remove all view controllers completly from tabbar controller whether it consists or not, and to add new view controllers
into tababr controller at run time?is it possible to do it?I have done as folowing , it is not giving output?
UIViewController *thisIsTheViewControllerIWantToSetNow;
int indexForViewControllerYouWantToReplace;
NSMutableArray *tabbarViewControllers = [self. tabController.viewControllers mutableCopy];
[tabbarViewControllers removeAllObjects];
self.tabController.viewControllers = [NSArray arrayWithObjects:self.moreNavController, self.logInNavController, nil];;
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假设给定示例中的
self是UITabBarController的实例，那么尝试直接操作其tabbar是不合适的。而是设置viewControllers属性。正如
UITabBarController文档所述：https://developer.apple.com/library/ios/documentation/uikit/reference/UITabBarController_Class/Reference/Reference.html#//apple_ref/doc/uid/TP40006931-CH3-SW4
Assuming that
selfin the example given is an instance ofUITabBarControllerthen trying to manipulate itstabbardirectly is not appropriate. Instead set theviewControllersproperty.As the
UITabBarControllerdocs state:https://developer.apple.com/library/ios/documentation/uikit/reference/UITabBarController_Class/Reference/Reference.html#//apple_ref/doc/uid/TP40006931-CH3-SW4