Hi, I enabled Mac Catalyst (macOS12.1) for an app, set Optimise Interface for Mac with the following code. The code can be compiled with "Build Succeeded" and can be run successfully on an M1 Mac. However the editor will flag out the following: 'horizontalSizeClass' is unavailable in macOS and with build time issues. If I use UIViewControllerRepresentable it will give Cannot find type 'UIViewControllerRepresentable' in scope The app does run ok. Am I missing something? import SwiftUI struct ContentView: View { @Environment(.horizontalSizeClass) var horizontalSizeClass: UserInterfaceSizeClass?     var body: some View {         if horizontalSizeClass == .compact {             Text("Compact")         } else {             Text("Regular")         }               } } Thanks in advance.

Hi, I am trying to export the following SwiftUI View to PDF using UIGraphicsPDFRenderer. The problem I am getting is there is somehow a margin on top of the exported PDF. The code I am using import SwiftUI struct ContentView: View {     var body: some View {         let pressGesture = TapGesture()                .onEnded { value in                    let documentDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!                    let outputFileURL = documentDirectory.appendingPathComponent("SwiftUI.pdf")                    let pdfVC = UIHostingController(rootView: self)                    let pageSize = CGSize(width: 2.625 * 72.0, height: 1.0 * 72.0)                    pdfVC.view.frame = CGRect(origin: .zero, size: pageSize)                    let rootVC = UIApplication.shared.windows.first?.rootViewController                    rootVC?.addChild(pdfVC)                    rootVC?.view.insertSubview(pdfVC.view, at: 0)                    let pdfRenderer = UIGraphicsPDFRenderer(bounds: CGRect(x: 0, y: 0, width: pageSize.width, height: pageSize.height))                    DispatchQueue.main.async {                         do {                                                                                 try pdfRenderer.writePDF(to: outputFileURL, withActions: { (context) in                                 context.beginPage()                                 pdfVC.view.layer.render(in: context.cgContext)                             })                             print("wrote file to: (outputFileURL.path)")                             pdfVC.removeFromParent()                             pdfVC.view.removeFromSuperview()                                              } catch {                             print("Could not create PDF file: (error.localizedDescription)")                         }                     }                                }         VStack(){                 Text("Hello")         }         .frame(width: 2.625 * 72.0, height: 1.0 * 72.0, alignment: .center)         .gesture(pressGesture)         .background(Color.red)     } } May I know what am I doing wrong? Thanks in advance.

Anyone can advise a newbie how to apply a displacement texture map image to a PyshicallyBaseMaterial in RealityKit? I applied the diffuse texture to PyshicallyBaseMaterial.BaseColor, roughness texture to PyshicallyBaseMaterial.Roughness, normal texture to PyshicallyBaseMaterial.Normal but have no idea what to do with a displacement texture.

Hi, Any idea if a Framework lib and XCFramework created with Big Sur and XCode12.2.2 is Universal (Intel and Apple Silicon)?