Hi, If I change the AppIcon in Xcode's Assets.xcassets, and rerun my app, the image used in the dock and app switcher does not update. If I "Clean Build Folder", and re-run, then it updates. This is annoying when I keep tweaking the colors in the icon and want to see how they look. A full rebuild takes a while, because I have a few Swift Package dependencies. Anyone know a trick to get the AppIcon to stop caching (or whatever it's doing)? I tried killall Dock and killall Finder, but that didn't help. (macOS 11.2.3) Rob

Is there a way to quickly confirm a "fix-it" popup using only the keyobard? The "Fix Next Issue" and "Fix Previous Issue" commands just show the popup. I still have to manually press the "Fix" button. Return key simply dismisses the popup. Clicking that tiny button 1000's of times is annoying. Xcode 12.4. In IntelliJ I can fly through these with a nice keyboard shortcut. I'm looking for a similar thing in Xcode.

After updating to 12.5, I now get an error trying to run my unit tests. This is for a macOS app. dyld: warning: could not load inserted library '/[...]/DerivedData/[...]/Contents/Frameworks/libXCTestBundleInject.dylib' into hardened process because no suitable image found.  Did find: /[...]/libXCTestBundleInject.dylib: code signature in (/[...]/libXCTestBundleInject.dylib) not valid for use in process using Library Validation: mapped file has no Team ID and is not a platform binary (signed with custom identity or adhoc?) Anyone else face and fix this, or understand what it is? I changed the "Signing Certificate" in my test target to "Sign to Run Locally" (from "Development") to see if that would help. It didn't fix it.

These are properties of Product. Both are type VerificationResult<Transaction>? and they seem very similar. What are some example situations where they would be different? It would be nice if the documentation discussed this.

Simple code like this gives an error. struct MyView: View {     @State private var test: Bool = false     var body: some View {           Text("Hello. \(test)") The error: Instance method 'appendInterpolation(_:formatter:)' requires that 'Bool' inherit from 'NSObject' What is going on?

You used to be able to put two wheel Pickers side-by-side in an HStack, if you used .frame(...) to set the width, along with .clipped(). Example code from previous question here: https://developer.apple.com/forums/thread/127028 HStack(spacing: 0) { Picker(selection: $choice1, label: Text("C1")) { ForEach(0..<10) { n in Text("\(n) a").tag(n) } } .pickerStyle(.wheel) .frame(minWidth: 0) .clipped() // repeat with second Picker } This is not working for me now in iOS 15. The views still appear side by side, but the touch area seems to overlap. When you try to adjust the first wheel, it spins the second one. I can move the first wheel, if I touch way over to the leading side of the screen. (I had to add the explicit Picker style. It seems like defaulting to .menu also started in iOS 15. ?)

Here's the entire app below. On iOS 15, it pops up blank. If you dismiss it and click "Share" again, then it looks right. Is this a bug, or is the code wrong? struct ContentView: View {     @State private var showShare = false     @State private var shareItems: [Any] = []     var body: some View {         VStack {             Text("Test ActivityViewController")             Button("Share") {                 share()             }.sheet(isPresented: $showShare) {                 print("dismissed")             } content: {                 ActivityViewController(activityItems: shareItems)             }         }     }     func share() {         shareItems = ["test"]         showShare = true     } } struct ActivityViewController: UIViewControllerRepresentable {     let activityItems: [Any]     func makeUIViewController(context: Context) -> UIActivityViewController {         let c = UIActivityViewController(activityItems: activityItems, applicationActivities: nil)         return c     }     func updateUIViewController(_ uiViewController: UIActivityViewController, context: Context) {} }

I can't find any documentation on this. I've tried adding png files to my project and adding them with the "+" button here, but Xcode just ignores me. No error message. Is it looking for a specific file format? This is Xcode 13.

I think they are, but I got myself into a situation with this error: // Inside a SwiftUI View struct... let cancelled: @MainActor () -> Void var body: some View { ... Button(action: self.cancelled) { Text("Cancel") } // Error here The compiler reports: Converting function value of type '@MainActor () -> Void' to '() -> Void' loses global actor 'MainActor' I originally put that attribute on the cancelled property, because in the passed-in closure, I was doing something that gave me an error about how I had to be on the MainActor.

I want to show a custom confirmation dialog on my iPad. It pops up looking utterly ridiculous because the size is way bigger than it needs - inches of padding on all sides. Is there still no way to control a sheet size on iPad? Example code: struct ContentView: View {     @State var showSheet = false     var body: some View {         Button("Show sheet") {             showSheet = true         }.sheet(isPresented: $showSheet) {             VStack(spacing: 0) {                 Text("Title")                 Divider()                 Text("Line 1")                 Text("Line 2. Blah blah blah blah.")                 Divider()                 HStack {                     Button("Cancel") { showSheet = false }                     Divider()                     Button("OK") { showSheet = false }                 }.fixedSize(horizontal: false, vertical: true)             }             .frame(minWidth: 0, minHeight: 0)             .fixedSize()         }     } } The result:

I've been working on an iOS app with UIDocuments. They were saving fine. Now all of a sudden, after unrelated changes, nothing will save. Here is the error printed in Xcode console: *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSURL URLByAppendingPathExtension:]: component, components, or pathExtension cannot be nil.' log.debug("save to:\(self.document.fileURL)") document.save(to: document.fileURL, for: .forOverwriting) { success in ... } The log message there prints a valid URL.

I have a button to restore purchases in my app. It calls AppStore.sync() as suggested by sample code. I'm testing in the sandbox, I put my device in airplane mode, and it throws StoreKitError.userCancelled. That's odd. Anyone else see this? I'd like to show an error alert popup to the user here, but I can't differentiate between this an a real userCancelled.

I tried to replace UIKit's UIPinchGestureRecognizer with SwiftUI's MagnificationGesture, but it doesn't seem possible in my case. I use the location(in: UIView) function from the former, which allows me to zoom in on that point, specifically. It's a better experience when zooming in on an image. Can I get that info from the MaginificationGesture? In the example code I see only the CGFloat for the amount of magnification.

This minimal code demonstrates a problem I'm having. As you adjust the Slider (high precision numbers), the TextField sets the model, changing the number's precision to its format. But I only want it to use the 3-digit fraction for display, or if the user edits in the field. It shouldn't be mutating the model just because it's displaying the value, no? Is it a bug? It doesn't seem right to me. struct ContentView: View {     @State var number: Double = 0 // wrap binding to log the `set` calls     var textFieldBinding: Binding<Double> {         Binding { number } set: {             print("Setting from TextField: \($0)")             number = $0         }     }     var sliderBinding: Binding<Double> {         Binding { number } set: {             print("Setting from Slider: \($0)")             number = $0         }     }     var body: some View {         VStack {             TextField("Number", value: textFieldBinding, format: .number.precision(.fractionLength(3)))             Slider(value: sliderBinding, in: 0...5.0)         }.frame(maxWidth: 300)     } } When you drag the slider, you see stuff like: Setting from Slider: 1.0073260217905045 Setting from TextField: 1.007 ...

I'm working on a drawing and painting program. When I turn my iPad, I detect the screen change and keep the drawing stable, while allowing the toolbars and things to rotate. But SwiftUI creates a disorienting animation of the main canvas anyway. Is there a way to shut that off?