code로 UI작성하면서 어떻게 그려지는지 보기

보고 싶은 VC에 작성

#if DEBUG
import SwiftUI
struct ViewControllerRepresentable: UIViewControllerRepresentable {
    
func updateUIViewController(_ uiView: UIViewController,context: Context) {
        // leave this empty
}
@available(iOS 13.0.0, *)
func makeUIViewController(context: Context) -> UIViewController{
    ViewController()
    }
}
@available(iOS 13.0, *)
struct ViewControllerRepresentable_PreviewProvider: PreviewProvider {
    static var previews: some View {
        Group {
            ViewControllerRepresentable()
                .ignoresSafeArea()
                .previewDisplayName(/*@START_MENU_TOKEN@*/"Preview"/*@END_MENU_TOKEN@*/)
                .previewDevice(PreviewDevice(rawValue: "iPhone 11"))
        }
        
    }
} #endif

그리고 option + command + enter 눌러주면 끝!
option + command + p 미리보기 돌리기