如何在Swift中基于屏幕方向调整子视图？

Question

我正在尝试一个非常基本的应用程序，其中有一个自定义菜单栏。菜单栏应该占据屏幕的1/4。而且由于必须在方向更改时重新计算此值，因此每次方向更改时我都会再次设置菜单栏。但是问题是，当我最初以纵向模式打开应用程序时，菜单栏设置正确，即使更改为横向，它仍然可以，但是当我从横向转换为肖像时，由于某种原因，它不能正确执行并增加菜单栏的高度。我想念什么吗？

下面是我的UIViewController

class HomeViewController: UIViewController{

var metrics : [String : CGFloat] = [:]
let table = OptionsTable()
let menuBar = MenuBar()
var views : [UIView] = []


override func viewDidLoad() {
    super.viewDidLoad()

    navigationController?.navigationBar.barTintColor = UIColor.getColorFromHex(hexCode: "1B9AF7")
    navigationController?.navigationBar.titleTextAttributes = [NSAttributedString.Key.foregroundColor : UIColor.white]

    setUpMenuBar()

}
private func setUpMenuBar(){
    views += [menuBar]
    view.addSubview(menuBar)
    let bottomPaddingForMenuBar = view.frame.height - (view.frame.height/4)
    print("Padding \(bottomPaddingForMenuBar)")
    metrics.updateValue(bottomPaddingForMenuBar, forKey: "bottomPaddingFormenuBar")
    view.addConstraintWithFormat("H:|[v0]|", views: views, metrics: metrics)
    view.addConstraintWithFormat("V:|-0@750-[v0]-bottomPaddingFormenuBar@750-|", views: views, metrics: metrics)


}

override func didRotate(from fromInterfaceOrientation: UIInterfaceOrientation) {
     setUpMenuBar()
    if fromInterfaceOrientation == .portrait || fromInterfaceOrientation == .portraitUpsideDown {
        print("Landscape")
    }else{
        print("Portrait")
    }
}

下面是我的addConstarintWithFormat()方法

extension UIView{
func addConstraintWithFormat(_ format : String, views : [UIView], metrics : [String : CGFloat]) {

    var viewsDictionary = [String : UIView]()

    for(index, view) in views.enumerated(){
        let key = "v\(index)"
        view.translatesAutoresizingMaskIntoConstraints = false
        viewsDictionary[key] = view
    }
    print("duuh\(viewsDictionary["v0"]!)")
    addConstraints(NSLayoutConstraint.constraints(withVisualFormat: format, options: NSLayoutConstraint.FormatOptions(), metrics: metrics, views: viewsDictionary))

}

预先感谢！