Hello together, I'm currently learning CoreData, but my preview in Xcode crashes always when I try to add something new to the view. Does someone have an idea what I need to pass to the preview that it works? My code

Hi everyone At the moment I try to use augmented reality QuickLook in Swift playgrounds When I try to open the reality file from the resource folder, this error shows up. Have someone an idea to fix that problem? Thanks in advance import QuickLook import RealityKit import ARKit struct ARQLViewController: UIViewControllerRepresentable {     func makeUIViewController(context: Context) -> some UIViewController {         return UINavigationController.init(rootViewController: ViewController())     }     func updateUIViewController(_ uiViewController: UIViewControllerType, context: Context) {} } class ViewController: UIViewController, QLPreviewControllerDataSource {     var isAppeard: Bool = false     override func viewDidLoad() {         super.viewDidLoad()         DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) {             let previewController = QLPreviewController()             previewController.dataSource = self             self.present(previewController, animated: true, completion: nil)         }     }    override func viewDidAppear(_ animated: Bool) {         guard !isAppeard else { return }         isAppeard = true         }     func numberOfPreviewItems(in controller: QLPreviewController) -> Int { return 1 }     func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem {         guard let path = Bundle.main.path(forResource: "SipARAnimation", ofType: "reality") else { fatalError("Couldn't find the supported input file.") }         let url = URL(fileURLWithPath: path)         return url as QLPreviewItem     } }

Hello everyone, how can I change the standard pin icon to another? And how is it possible when I tap on the pin that an additional popup view opens in which the name of the city is at the top and that the associated image from the PhotoView is displayed? How could I best implement this? Thanks in advance MapView import MapKit import SwiftUI struct City: Identifiable {     let id = UUID()     let name: String     let coordinate: CLLocationCoordinate2D } struct MapView: View {     @State private var region = MKCoordinateRegion(center: CLLocationCoordinate2D(latitude: 46.62407, longitude: 8.03434), span: MKCoordinateSpan(latitudeDelta: 0.1, longitudeDelta: 0.1))          let annotations = [         City(name: "Alte Strasse(Zuhause)", coordinate: CLLocationCoordinate2D(latitude: 46.63649, longitude: 7.97512)),         City(name: "Stalden1", coordinate: CLLocationCoordinate2D(latitude: 46.63937, longitude: 7.97216)),         City(name: "Stalden2", coordinate: CLLocationCoordinate2D(latitude: 46.63873, longitude: 7.96684)),         City(name: "Scheideggstrasse(Wetterhorn)1", coordinate: CLLocationCoordinate2D(latitude: 46.63353, longitude: 8.07356)),         City(name: "Scheideggstrasse(Wetterhorn)2", coordinate: CLLocationCoordinate2D(latitude: 46.63293, longitude: 8.07380)),         City(name: "Scheideggstrasse(Wetterhorn)3", coordinate: CLLocationCoordinate2D(latitude: 46.63313, longitude: 8.07329)),         City(name: "Scheideggstrasse(Wetterhorn)4", coordinate: CLLocationCoordinate2D(latitude: 46.63456, longitude: 8.07337)),         City(name: "Obere Gletscherstrasse(Wetterhorn)", coordinate: CLLocationCoordinate2D(latitude: 46.63205, longitude: 8.07022)),         City(name: "Obere Gletscherstrasse(Hotel Blümlisalp)", coordinate: CLLocationCoordinate2D(latitude: 46.63173, longitude: 8.06699)),         City(name: "Itramenstrasse", coordinate: CLLocationCoordinate2D(latitude: 46.62060, longitude: 7.99514))     ]     var body: some View {         Map(coordinateRegion: $region, annotationItems: annotations) {             MapMarker(coordinate: $0.coordinate)             }         .onAppear {             MKMapView.appearance().mapType = .satellite         }             }     struct MapView_Previews: PreviewProvider {         static var previews: some View {             MapView()         }     } } PhotoView struct ContentView: View {     var images: [String] = ["noaa1", "noaa2", "noaa3", "noaa4", "noaa5", "noaa6", "noaa7", "noaa8", "noaa9", "noaa10", "noaa11", "noaa12", "noaa13", "noaa14", "noaa15", "noaa16", "noaa17", "noaa18"]          var columnGrid: [GridItem] = [GridItem(.fixed(180), spacing: 16), GridItem(.fixed(180), spacing: 16)]              var body: some View {         NavigationView {             ScrollView {                 LazyVGrid(columns: columnGrid, alignment: .center, spacing: 16) {                     ForEach(images, id: \.self) { image in                         NavigationLink (destination: ImageDetail(imageName: image)) {                             Image(image)                                 .resizable()                                 .scaledToFit()                                 .cornerRadius(10)                         }                     }                 }             }.navigationBarTitle(Text("Test"), displayMode: .inline)         }.navigationViewStyle(.stack)     } }

Hello, I struggling to integrate this code below in my Content View can someone give me help? import UIKit import QuickLook import ARKit class ViewController: UIViewController, QLPreviewControllerDataSource {     override func viewDidAppear(_ animated: Bool) {         let previewController = QLPreviewController()         previewController.dataSource = self         present(previewController, animated: true, completion: nil)     }     func numberOfPreviewItems(in controller: QLPreviewController) -> Int { return 1 }     func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem {         guard let path = Bundle.main.path(forResource: "myScene", ofType: "reality") else { fatalError("Couldn't find the supported input file.") }         let url = URL(fileURLWithPath: path)         return url as QLPreviewItem     } }

Hello, I want to implement AR quick look to my app. I' don't want to use UIKit but SwiftUI. In one of my views, I want to press a button named "preview" and then it should open the AR quick look. Have someone an idea how I can do that? Sorry for that badly formatted code below. import UIKit import QuickLook import ARKit class ViewController: UIViewController, QLPreviewControllerDataSource { override func viewDidAppear(_ animated: Bool) { let previewController = QLPreviewController() previewController.dataSource = self present(previewController, animated: true, completion: nil) } func numberOfPreviewItems(in controller: QLPreviewController) -> Int { return 1 } func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem { guard let path = Bundle.main.path(forResource: "myScene", ofType: "reality") else { fatalError("Couldn't find the supported input file.") } let url = URL(fileURLWithPath: path) return url as QLPreviewItem } } [https://developer.apple.com/documentation/arkit/previewing_a_model_with_ar_quick_look)

Hello, how can I add a detail view to this code? I want to show the image in a detail view and that for every image single. import SwiftUI struct ContentView: View {     var images: [String] = ["noaa1", "noaa2", "noaa3", "noaa4", "noaa5", "noaa6", "noaa7", "noaa8", "noaa9", "noaa10", "noaa11", "noaa12", "noaa13", "noaa14", "noaa15", "noaa16", "noaa17", "noaa18"]          var columnGrid: [GridItem] = [GridItem(.flexible()), GridItem(.flexible())]          var body: some View {             ScrollView {                 LazyVGrid(columns: columnGrid) {                     ForEach(images, id: \.self) { image in                         Image(image)                             .resizable()                             .scaledToFit()                             .cornerRadius(10)                                      }             }         }     }          struct ContentView_Previews: PreviewProvider {         static var previews: some View {             ContentView()         }     } }

Hello, how can I turn this standard map view into a Satellite map view? Thanks //  MapView.swift //  Grindelwald View // //  Created by Roman Indermühle on 15.04.22. // import MapKit import SwiftUI struct City: Identifiable {     let id = UUID()     let name: String     let coordinate: CLLocationCoordinate2D } struct MapView: View {          @State private var region = MKCoordinateRegion(center: CLLocationCoordinate2D(latitude: 46.62407, longitude: 8.03434), span: MKCoordinateSpan(latitudeDelta: 0.17, longitudeDelta: 0.17))               let annotations = [         City(name: "Burglauenen", coordinate: CLLocationCoordinate2D(latitude: 46.63649, longitude: 7.97512)),         City(name: "Stalden", coordinate: CLLocationCoordinate2D(latitude: 46.63937, longitude: 7.97216)),         City(name: "Stalden2", coordinate: CLLocationCoordinate2D(latitude: 46.63873, longitude: 7.96684))                       ]               var body: some View {         Map(coordinateRegion: $region, annotationItems: annotations) {             MapMarker(coordinate: $0.coordinate)                                   }                       }      } struct MapView_Previews: PreviewProvider {     static var previews: some View {         MapView()     } }

Hi everyone, does anyone have a suggestion on how I can add a detail view to this grid view? import SwiftUI struct ContentView: View {     var body: some View {         NavigationView {             List {                 ImageRow()             }.navigationBarTitle(Text("Landscapes"))         }     } } struct ContentView_Previews: PreviewProvider {     static var previews: some View {         ContentView()     } } import SwiftUI import Combine struct ImageRow: View {     var body: some View {         var images: [[Int]] = [] _ = (1...18).publisher .collect(2) // Creating two columns             .collect()             .sink(receiveValue: { images = $0 })                  return ForEach(0..<images.count, id: \.self) { array in             HStack {                 ForEach(images[array], id: \.self) { number in                     Image("noaa\(number)")                         .resizable()                         .scaledToFit()                         .cornerRadius(10)                   }             }         }     } }

I will briefly explain my view. My goal is to make a list where you can enter all personal information like a kind of emergency passport. There should also be text fields where you can tap on the plus button and then there is a new text field. On the top right I want to make an edit button that you can delete text fields again. I will connect this view with another SwiftUI view file. Does anyone have an idea how to solve this problem with the list? import SwiftUI struct ListeDaten: Identifiable { let id = UUID() let Name: String let Adresse: String var Telefonnummern: [String] = [] var Something: String = "" } struct ListeDaten: View {     var body: some View {                  TextField(Name: "Name/Vorname")         TextField(Adresse: "Adresse")         ForEach(id: \.self) {Telefonnummern in TextField("Telefonnummer")}         Button(action: {             Telefonnummern.append("")         })         {             Image(systemName: "plus.circle.fill")                 .foregroundColor(Color(.systemGreen))         }     } } struct ListeDaten_Previews: PreviewProvider {     static var previews: some View {         ListeDaten()     } }

Good day, I would like to generate a text field when I tap on the green button that creates a new text field and I can still enter for example a 2nd phone number. I have already tried it with this example: Button(action: { print("Telefonnummer")}) {          Image(systemName: "plus.circle.fill")                 .foregroundColor(Color(.systemGreen)) }

Good day, I have the problem that when I switch from one view to another, the content is moved to the bottom every time. I have already tried with the: See picture attached: [https://we.tl/t-SUYZZh6M2P) Does anyone have a solution suggestion? Greetings