如何单击uitabaritem并显示新的ViewController?

我手动添加一个选项卡栏来查看控制器,这不是 tabBarController ,因为我只需要选项卡栏用户界面,而不是选项卡栏功能

我想点击标签栏并显示新的 ViewController ,但我不能那样做 storyBoard

如果我使用这个方法,xcode会提示我 Value of type 'UITabBarItem' has no member 'isUserInteractionEnabled' 和 Value of type 'UITabBarItem' has no member 'addGestureRecognizer'

如何单击UITabBarItem?

How to make a UILabel clickable?

@IBOutlet weak var setting: UITabBarItem!
@IBOutlet weak var activity: UITabBarItem!
@IBOutlet weak var profile: UITabBarItem!
@IBOutlet weak var connect: UITabBarItem!
@IBOutlet weak var scanner: UITabBarItem!

override func viewDidLoad() {
    super.viewDidLoad()

    let tap = UITapGestureRecognizer(target: self, action: #selector(tapFunction))
    setting.isUserInteractionEnabled = true
    setting.addGestureRecognizer(tap)

    activity.isUserInteractionEnabled = true
    activity.addGestureRecognizer(tap)

    profile.isUserInteractionEnabled = true
    profile.addGestureRecognizer(tap)

    connect.isUserInteractionEnabled = true
    connect.addGestureRecognizer(tap)

    scanner.isUserInteractionEnabled = true
    scanner.addGestureRecognizer(tap)
}
@objc func tapFunction(sender:UITapGestureRecognizer) {

    print("tap working")
}