How to remove Tabbar Item in swift 3

Question

I've 5 UIViewcontroller in my UITabbarController but I need the show 4 of them in tabbar so I'm trying to remove last tabbar item from UITabbarController.

self.tabBarController?.tabBar.items?.removeLast()

But I'm getting this error.

Directly modifying a tab bar managed by a tab bar controller is not allowed

So how can I remove last tabbar item from tabbar ?

Answer 1

You should manipulate the array of viewcontrollers in the tabbar controller. Try this.

if let tabBarController = self.tabBarController {
     let indexToRemove = 4
     if indexToRemove < tabBarController.viewControllers?.count {
         var viewControllers = tabBarController.viewControllers
         viewControllers?.remove(at: indexToRemove)
         tabBarController.viewControllers = viewControllers
     }
 }

Answer 2

For removing a ViewController from tabBarController? you should simply implement:

tabBarController?.viewControllers?.removeLast()

Assuming that you remove the last controller (tab).

It is related to viewControllers :

An array of the root view controllers displayed by the tab bar interface.

Obviously, you could remove and controller, for instance, for removing the first controller:

tabBarController?.viewControllers?.remove(at: 0)

---

Update:

First I need the open Fifth viewcontroller and I'll not show it in tabbar. User can't go fifth tabbar. Only I can navigate user. So cause of that I'm trying to do that.

For achieving this, all you should do is to let your storyboard to be structured as:

Considering that the first view controller (the one that should present the tabbar controller) is the view controller that you don't want to let it appears in the tabbar.

Answer 3

要删除您知道其引用或位置的选项卡栏项目，可以通过以下方式进行操作：

tabBarController?.viewControllers?.remove(at: 4)