问如何隐藏UITabbarIcon？

EN

self.viewControllers?.remove(at: tabIndex) // replace the tabIndex which you want to remove

self.viewControllers?.insert(viewController, at: tabIndex) // replace the viewcontroller with your controller and tabIndex with your index

let tabIndex = 3
if let tabBarController = self.tabBarController {
    if tabIndex < tabBarController.viewControllers?.count {
        var allViewControllers = tabBarController.viewControllers
        allViewControllers?.remove(at: tabIndex)
        tabBarController.viewControllers = allViewControllers
    }
}