Add Async image loading

Examples/Interfacing With UIKit/Complete/Landmarks/Landmarks/PageControl.swift

@@ -0,0 +1,47 @@
+/*
+See LICENSE folder for this sample’s licensing information.
+
+Abstract:
+A view wrapping a UIPageControl.
+*/
+
+import SwiftUI
+
+import UIKit
+
+struct PageControl: UIViewRepresentable {
+    var numberOfPages: Int
+    @Binding var currentPage: Int
+
+    func makeCoordinator() -> Coordinator {
+        Coordinator(self)
+    }
+
+    func makeUIView(context: Context) -> UIPageControl {
+        let control = UIPageControl()
+        control.numberOfPages = numberOfPages
+        control.addTarget(
+            context.coordinator,
+            action: #selector(Coordinator.updateCurrentPage(sender:)),
+            for: .valueChanged)
+
+        return control
+    }
+
+    func updateUIView(_ uiView: UIPageControl, context: Context) {
+        uiView.currentPage = currentPage
+    }
+
+    class Coordinator: NSObject {
+        var control: PageControl
+
+        init(_ control: PageControl) {
+            self.control = control
+        }
+
+        @objc
+        func updateCurrentPage(sender: UIPageControl) {
+            control.currentPage = sender.currentPage
+        }
+    }
+}