What is UIHostingController?

UIHostingController- A UIKit view controller manages a SwiftUI view hierarchy. It is intended when integrating SwiftUI views into a UIKit view hierarchy.

 Present a SwiftUI view in the  UIKit view controller

let swiftCustomUIView = SwiftCustomUIView()
let hostingController = UIHostingController(rootView: swiftCustomUIView)
present(hostingController, animated: true, completion: nil)