zoom

apps/ios/Shared/Views/Onboarding/WhatsNewView.swift

@@ -810,7 +810,7 @@ fileprivate struct GetStakeView: View {
     @EnvironmentObject var chatModel: ChatModel
 
     var body: some View {
-        ScrollView {
+        ZoomablePageView {
             VStack(alignment: .leading, spacing: 18) {
                 Text("Get a stake in SimpleX Chat")
                     .font(.largeTitle)

apps/ios/Shared/Views/ZoomableScrollView.swift

@@ -58,3 +58,54 @@ struct ZoomableScrollView<Content: View>: UIViewRepresentable {
         }
     }
 }
+
+struct ZoomablePageView<Content: View>: UIViewRepresentable {
+    private var content: Content
+
+    init(@ViewBuilder content: () -> Content) {
+        self.content = content()
+    }
+
+    func makeUIView(context: Context) -> UIScrollView {
+        let scrollView = UIScrollView()
+        scrollView.delegate = context.coordinator
+        scrollView.maximumZoomScale = 5
+        scrollView.minimumZoomScale = 1
+        scrollView.bouncesZoom = true
+        scrollView.backgroundColor = .clear
+
+        let hostedView = context.coordinator.hostingController.view!
+        hostedView.backgroundColor = .clear
+        hostedView.translatesAutoresizingMaskIntoConstraints = false
+        scrollView.addSubview(hostedView)
+        NSLayoutConstraint.activate([
+            hostedView.leadingAnchor.constraint(equalTo: scrollView.contentLayoutGuide.leadingAnchor),
+            hostedView.trailingAnchor.constraint(equalTo: scrollView.contentLayoutGuide.trailingAnchor),
+            hostedView.topAnchor.constraint(equalTo: scrollView.contentLayoutGuide.topAnchor),
+            hostedView.bottomAnchor.constraint(equalTo: scrollView.contentLayoutGuide.bottomAnchor),
+            hostedView.widthAnchor.constraint(equalTo: scrollView.frameLayoutGuide.widthAnchor)
+        ])
+
+        return scrollView
+    }
+
+    func makeCoordinator() -> Coordinator {
+        Coordinator(hostingController: UIHostingController(rootView: self.content))
+    }
+
+    func updateUIView(_ uiView: UIScrollView, context: Context) {
+        context.coordinator.hostingController.rootView = self.content
+    }
+
+    class Coordinator: NSObject, UIScrollViewDelegate {
+        var hostingController: UIHostingController<Content>
+
+        init(hostingController: UIHostingController<Content>) {
+            self.hostingController = hostingController
+        }
+
+        func viewForZooming(in scrollView: UIScrollView) -> UIView? {
+            hostingController.view
+        }
+    }
+}