addSubview SwiftUI View to UIKit UIView in Swift

Question

I have tried to addSubview a SwiftUI View to UIView. self.view.addSubview(contentView)

Error: Cannot convert value of type 'ContentView' to expected argument type 'UIView'

Kindly help me to implement this UI.

import UIKit import SwiftUI  class ViewController: UIViewController {      override func viewDidLoad() {         super.viewDidLoad()         // Do any additional setup after loading the view.         view.backgroundColor = UIColor.lightGray                  let contentView = ContentView()         view.addSubview(contentView) // Error: Cannot convert value of type 'ContentView' to expected argument type 'UIView'     }   }   struct ContentView: View {     var body: some  View {         Text("Hello world")     }      } 

Answer 1

Step 1: Create instances of UIHostingController by using SwiftUI View

struct ContentView : View {     var body: some View {         VStack {             Text("Test")             Text("Test2")          }     } }  var child = UIHostingController(rootView: ContentView()) 

Step 2: Add instance of UIHostingController as a child view controller to Any UIKit ViewController

var parent = UIViewController() child.view.translatesAutoresizingMaskIntoConstraints = false child.view.frame = parent.view.bounds // First, add the view of the child to the view of the parent parent.view.addSubview(child.view) // Then, add the child to the parent parent.addChild(child)  

You can use the following code to remove a child controller Remove from view Controller

// Then, remove the child from its parent child.removeFromParent()  // Finally, remove the child’s view from the parent’s child.view.removeFromSuperview()