从UITabBarController以模态方式呈现ViewController而不隐藏选项卡栏

Question

I have a UITabBarController with 5 items in it. I have also a side menu with couple of items. When tapping one of the items in the side menu I need to present view controller modally without hiding the tab bar. I tried the following:

1. Presenting it from the selectedViewController

     tabBarController.selectedViewController?.present(contactsViewController, animated: false, completion: {}) 

2. Presenting it from the UITabBarController itself

    tabBarController.present(contactsViewController, animated: true) {} 

3. Adding a modal segue in Storyboard from the selectedViewController to the contactsViewController and performing it

All of these led to the tabBar being hidden. Is it possible to present the view controller modally without hiding the tab bar and how?

Answer 1

You can use the UITabBarControllerDelegate methods to present menu modally.

func tabBarController(_ tabBarController: UITabBarController, shouldSelect viewController: UIViewController) -> Bool
    {
        if tabBarVC?.tabBar.selectedItem?.tag == 5
        {
            tabBarVC?.present(SideMenuManager.default.menuRightNavigationController!, animated: true, completion: nil)
            return false
        }
        return true
    }