UIKit + SwiftUIPreview

UIKit + SwiftUIPreview.swift

#if canImport(SwiftUI) && DEBUG
import SwiftUI
struct UIViewControllerPreview<ViewController: UIViewController>: UIViewControllerRepresentable {
    func updateUIViewController(_ uiViewController: ViewController, context: Context) {
        
    }
    
    let viewController: ViewController

    init(_ builder: @escaping () -> ViewController) {
        viewController = builder()
    }

    // MARK: - UIViewControllerRepresentable
    func makeUIViewController(context: Context) -> ViewController {
        viewController
    }
}

struct UIViewPreview<View: UIView>: UIViewRepresentable {
    let view: View
    
    init(_ builder: @escaping () -> View) {
        view = builder()
            
    }
    
    // MARK: UIViewRepresentable
    func makeUIView(context: Context) -> UIView {
        return view
    }
    
    func updateUIView(_ view: UIView, context: Context) {
        view.setContentHuggingPriority(.defaultHigh, for: .horizontal)
        view.setContentHuggingPriority(.defaultHigh, for: .vertical)
    }
}
#endif

//#if canImport(SwiftUI) && DEBUG
//import SwiftUI
//struct <#Preview_Class_Name_Here#>_Previews: PreviewProvider {
//    static var previews: some View {
//        UIViewPreview {
//            <#ViewHere#>
//        }
//        .edgesIgnoringSafeArea(.all)
//    }
//}
//#endif
//
//#if canImport(SwiftUI) && DEBUG
//import SwiftUI
//struct <#Preview_Class_Name_Here#>_Previews: PreviewProvider {
//    static var previews: some View {
//        UIViewControllerPreview {
//            <#ViewControllerHere#>
//        }
//        .edgesIgnoringSafeArea(.all)
//    }
//}
//#endif