swiftui

Trying to find a way how to get scroll view's scroll offset using GeometryReader. The view hierarchy I am after is Scrollview with custom view. Custom view (TileCollectionView) defines its size itself (it is custom collection/tile view with fixed number of columns).struct ContentView: View { var body: some View { VStack { Text(Scoll location) ScrollView([.horizontal, .vertical]) { GeometryReader { geometry -> TileCollectionView in print(geometry.frame(in: .global)) return TileCollectionView() } } } } } struct TileCollectionView: View { var body: some View { VStack(spacing: 1) { ForEach(0..<30) { seriesIndex in HStack(spacing: 1) { ForEach(0..<8) { columnIndex in TileView() } } } } } } struct TileView: View { var body: some View { Color.blue.frame(width: 128, height: 128, alignment: .center).fixedSize() } }What happens with this code is GeometryReader making the view size matching with ScollView size and it is not possible to scroll from one edge to another edge of the TileCollectionView. Wondering ho

I've created an standalone watch app using SwiftUI. I want a complication that just show the app name. I thought the default should work do this? I've not made any change to the ComplitionController: func getLocalizableSampleTemplate(for complication: CLKComplication, withHandler handler: @escaping (CLKComplicationTemplate?) -> Void) { // This method will be called once per supported complication, and the results will be cached handler(nil) }I can see my app name in the watch face complication selection list. But it's blank in the watch face itself. Touching it opens my app.What to do?Initially. the complication selection show my app as MyApp WatchKit App, on the watch face it's blank but touching the complication shows MyApp WatchKit App briefly and opens my app. I have no idea where the app name settings is in Xcode. I have set all the Display Name fields in Xcode as MyApp. When I changed the Identity and Type field from MyApp WatchKit App to MyApp, the compication configure selection list now s

I want to drive SwiftUI views with the new @FetchRequestproperty wrapper from the results of a fetch request. The first level, so just using a Text in the same struct where the fetch request is used, works fine and the view is updated if core data changes. If I integrate a LandmarkRow(landmark: landmark)this will not be updated anymore (but if copied the exact same code to the main view, it works)Essentially I want to include views with the details as in the landmarks tutorial:ForEach(userData.landmarks) { landmark in if !self.userData.showFavoritesOnly || landmark.isFavorite { NavigationLink(destination: LandmarkDetail(landmark: landmark)) { LandmarkRow(landmark: landmark) } } }Maybe there is a tutorial or some more information on how to use @FetchRequst and inherited views correctly?Any idea on how to proceed?

What is the best practice to achieve popToRootViewController like functionality in SwiftUI? There are couple of ways to do it and one of them is described nicely here (https://stackoverflow.com/questions/57334455/swiftui-how-to-pop-to-root-view) via publish event but it losses the animation while popping to root. Please suggest.

Using Xcode 11 beta 7, I'm getting an unexpected EXC_BAD_INSTRUCTION crash with this very simple view. It manages a list where you can add and delete items. The list starts off empty, and the crash occurs after you add any items and delete them so that the list is empty again.The conditional rendering of something different when the list is empty (if items.count == 0...) seems to have something to do, because if I unconditionally render a List there is no crash. Yet I see no issue with the code as it is. Note that right before crashing, Text(empty) is correctly rendered.Any ideas...?struct TestView: View { @State var items: [Int] = [] var body: some View { VStack { Button(action: { self.add() }) { Text(Add) } if items.count == 0 { Text(empty) } else { List { ForEach(items, id: .self) { item in Text(item #(item)) } .onDelete(perform: { self.delete(offset: $0.first! )}) } } } } func delete(offset: Int) { DispatchQueue.main.async { self.items.remove(at: offset) } } func add() { DispatchQueue.main.async { self.it

I have a watchos (swiftui beta 6) screen layout that looks complete on the preview canvas on sizes 38, 40, 42, 44. but when I run it on the simulator, or watch the top line of text is either missing or partially cut off.Is this a bug in the preview or am I missing something?

I am using SwiftUI to make an app and storing the data on ICloud. Because all the code I can find relates to Swift and viewDidLoad and TableView, however this do not apply. I have written code and seems to retrieve it but will not return it to the ObservableObject to be able to display in the SwiftUIThe ObservableObject file:-import SwiftUI import Combine final class ObservedData: ObservableObject { @Published var venues = venuesData }The query to retrieve dataimport SwiftUI import CloudKit var venuesData: [Venue] = loadVenues() func loadVenues() -> [Venue] { var data = [Venue]() let pred = NSPredicate(value: true) let sort = NSSortDescriptor(key: id, ascending: true) let query = CKQuery(recordType: DeptfordHopData, predicate: pred) query.sortDescriptors = [sort] let operation = CKQueryOperation(query: query) operation.desiredKeys = [id,name, address] operation.resultsLimit = 50 var newVenues = [Venue]() operation.recordFetchedBlock = { record in let venue = Venue() venue.racordI

I have the following SwiftUI view:struct Flashcard : View { @State var cardText = newArray[randomNum].kana var body: some View { let stack = VStack{ Text(cardText) .color(.red) .font(.title) .frame(minWidth: 0, maxWidth: .infinity, minHeight: 0, maxHeight: 200) .tapAction { self.flipCard() } HStack { Button(action: { print(button pressed) self.incorrect() }) { Image(systemName: xmark.circle) .font(.title) } .opacity(0.4) Button(action: { print(button pressed) self.correct() }) { Image(systemName: checkmark.circle) .font(.title) } .opacity(0.4) } } //.background(Color.blue) .cornerRadius(25) return stack }I'm trying to make the background colour of the VStack blue, but when I do that, I realise that the Buttons are no longer pressable. Is there a way to make them always on top? Should I be using a ZStack as well to make the Buttons the last view that is added to the stack? I tried using a ZStack but getting a lot of strange outcomes.

Is there a way to change the selection color of a List in SwiftUI?