swiftui - 自定义导航栏和分段控制 swiftui

Question

我在使用自定义导航栏时遇到了一些麻烦。在我使用分段控件之前它工作得很好，但现在使用分段控件，导航栏的颜色和字体不会更新。我正在使用 Init() 来自定义两者。这是我的代码：

    init(){
        UINavigationBar.appearance().isTranslucent = true
    UINavigationBar.appearance().titleTextAttributes = [.font : UIFont(name: "Gilbert", size: 50)!, .foregroundColor: UIColor(named: "testo")!]
            UINavigationBar.appearance().tintColor = UIColor(named: "color")
        
        UISegmentedControl.appearance().selectedSegmentTintColor = UIColor(named: "testo")
        
        UISegmentedControl.appearance().backgroundColor = .clear

            //this will change the font size
       
        UISegmentedControl.appearance().setTitleTextAttributes([.font : UIFont(name: "Gilbert", size: 30)!], for: .normal)

            //these lines change the text color for various states
            UISegmentedControl.appearance().setTitleTextAttributes([.foregroundColor : UIColor.white], for: .selected)
        UISegmentedControl.appearance().setTitleTextAttributes([.foregroundColor : UIColor(named: "testo")!], for: .normal)
        
         
    }