I'm curious if anyone has a way to remove or move the fixed buttons on the Xcode 12 Touch Bar? It's 2021 and 3 years ago this was the answer to a similar question. It doesn't discuss the fixed buttons for Run/Stop/Back/Next: https://developer.apple.com/forums/thread/80896?login=true I am forever hitting the Run button by accident and want to remove it or at least shove it over so no buttons are just right of the escape key on my MBP 2019.

My app deal with a lot of domain-specific jargon. Is there a way to augment the vocabulary used in a SwiftUI TextField (or a UITextInput) so that autocorrection and spelling anticipation will suggest the jargon words first? Augmentation of dictation support isn't necessary but would be a nice to have.

I've made an "action extension" and now I need to make a glyph or template for NSExtensionServiceFinderPreviewIconName. The documentation has been useless for me. Everything I do ends up with a generic black image overlaid with some faint template lines: I understand a glyph ≠ template ≠ icon, but that glyph and template are both acceptable for the action extension. I've tried various ways to make my monochrome, black-and-transparent image but I'm missing something. I started with making it in Sketch. The PNG export has alpha and is black and white, though the color mode of the file is probably full color. I ran it through Icon Set Studio but Xcode warned me there were problems with it, and it came out entirely black. I took that PNG into Pixelmator Pro and used it to make a clipping mask since one of the hallmarks of a glyph is also supposed to be an alpha mask. Re-exported this new PNG with no change or improvement. Exported it as an SVG, but still nothing helping. The docs don't say where the image needs to be in the Xcode workspace. I've tried putting it in both the containing app's Asseets.xcassets and in the extension's Media.xcassets, but neither helps. Once I downloaded a glyph template file (for Sketch) from Apple, but it is tremendously complicated and I hope I can get away without making a version for every font weight and size class. A step by step guide would help a lot, so if anyone has some energy to make one I bet other indies would appreciate it. We can't all afford $$$ for a graphic artist.

Is there a variant of TextEditor that works with AttributedString? Does it expose the selectedText range? I want to create a custom text editor to mark ranges of an AttributedString. But I can make do in a clunky way with just String if I at least can get the selectedRange of the text in TextEditor. I expect I'll need to go to UIKit and use UITextView.

ScrollViewReader doesn't seem to work reliably with an animated alignmentGuide view as the target. If I scroll by hand then SVR will track the animated guide. Rescaling the content often breaks the behavior and requires another manual scroll to reconnect the animation to scrolling. In my test I have a media player-like timeline. I'd like to keep the elapsed time cursor centered, no matter the length of the timeline rectangle. struct ContentView: View { @State private var zoom: Double = 10 let start = Date.now let duration: TimeInterval = 60 var body: some View { VStack(alignment: .leading) { TimelineView(.periodic(from: start, by: 1)) { context in let elapsed = context.date.timeIntervalSince(start) ScrollViewReader { proxy in ScrollView(.horizontal) { Text("\(elapsed.formatted(.number.precision(.fractionLength(0)))) / \(duration.formatted(.number.precision(.fractionLength(0))))") let barWidth: CGFloat = max(300, duration * zoom) ZStack(alignment: Alignment(horizontal: .marker, vertical: .bottom)) { ZStack(alignment: .leading) { // The bar representing the duration. Rectangle().fill(Color.gray) // The bar representing the elapsed time. Rectangle().fill(Color.accentColor) .frame(width: barWidth * (elapsed / duration)) .alignmentGuide(.marker) { d in d[.trailing] } } .frame(width: barWidth, height: 20) Rectangle().fill(Color.primary).frame(width: 3) .alignmentGuide(.marker) { d in d[HorizontalAlignment.trailing] } .id(1) } .frame(height: 30) .onChange(of: elapsed, perform: { _ in proxy.scrollTo(1, anchor: .center) }) } .onChange(of: elapsed, perform: { newValue in if newValue > duration { exit(0) } }) } } Slider(value: $zoom, in: 0.5...40, label: { Text("Zoom") }) let s = zoom.formatted(.number.precision(.fractionLength(1))) Text("\(s)") } .padding() } }

The keyboard shortcut Control + Command + F normally toggles a window's full screen mode. It's assigned to the menu command View / Enter Full Screen. Well, if you make a multiplatform document-based app, create a new document, the shortcut does not work. The menu command works just fine. Does anyone have a workaround for this?

I want to access to a small number of Markdown text files. It looks like the asset catalog feature "Folder with Namespace" might do well, as I could store these small files in a folder that the asset catalog contains. How would I go about getting the string contents of a particular file if I know its name?

I want my app to receive certain data types shared from other apps. I'm interested in text and URLs today, and maybe images later. UIActivity seems to be the way to start but I don't know what to do with the subclass I've created. I assume it at least needs to be declared in the app's properties, but I don't know where to read about that and nothing stands out in the project editor. I don't know the API or keywords to do my research, so if anyone can point me I'll appreciate it.

Is there a way to view the contents of an app's NSUbiquitousKeyValueStore? I was expecting to find a property or method that listed the keys, or maybe a web app like the CloudKit Dashboard.

I would like the first() operator to send a value as soon as it's received a value that satisfies the condition (and to finish publishing as well). But I don't know how to test this is really happening. The only test I've devised is below, but I suspect it is wrong. The map operator will keep demanding values of course, so I expect it to print all of them. Yet the sink subscriber doesn't invoke receiveValue or receiveCompletion until after map is done, which suggests first is awaiting upstream completion. Does first really does need the upstream to complete before it sends anything onward? What's really the story here for first? import Foundation import Combine let numbers = (-10...10) let cancellable = numbers.publisher     .map({ n in         Thread.sleep(forTimeInterval: 1)         print("sending \(n)")         return n     })     .first { $0 0 }     .sink { completion in         switch completion {         case .failure(_): print("failed")         case .finished: print("finished")         }     } receiveValue:  { print("\($0)") } My specific situation is I'm monitoring for when the network becomes available the first time. Of course the monitoring source will never (should never) finish but I do want completion for a pipeline subscribing to that monitor with first.

Using CloudKit, when I perform CKFetchDatabaseChangesOperation(previousServerChangeToken:) the response in fetchDatabaseChangesCompletionBlock is an error: Metasync Continuation could not properly be parsed The first time through this works when the token is nil. The second time through it fails with this error. It was working at one time. I've tried deleting the app and resetting the development database as well. I am guessing this has to do with the server change token. I save and restore the server change token to UserDefaults using NSKeyedArchiver to archive/unachive it as Data, so it should be perfectly preserved. I'm using the privateCloudDatabase with a non-default zone.

Why does a swipe action (using the new .swipeAction in SwiftUI 5.5, currently beta 3) set editMode? Notice when you swipe that "Edit" changes to "Done"? And yet this is not like full edit mode because tapping the EditButton shows the move handles (and the ever-annoying ugly blank indentation for the absent onDelete modifier). I think my next project won't use SwiftUI. import SwiftUI struct Fruit: Identifiable {     let id: UUID = UUID()     let name: String     let color: Color } struct ListingView: View {     @State var fruits: [Fruit] = [         Fruit(name: "banana", color: .yellow),         Fruit(name: "apple", color: .green),         Fruit(name: "tomato", color: .red)]          @Environment(\.editMode) private var editMode          var body: some View {         NavigationView {             VStack(alignment: .leading) {                 List {                     ForEach(fruits) { fruit in                         NavigationLink(                             destination: ZStack {                                 fruit.color                                 Text(fruit.name).bold().font(.largeTitle)                             }                                 .navigationTitle(fruit.name),                             label: {                                 HStack(alignment: .center) {                                     fruit.color.frame(width: 30, height: 30)                                     Text(fruit.name)                                 }                             })                             .swipeActions(edge: .leading, allowsFullSwipe: false) {                                 Button(action: { delete(fruit) },                                        label: { Image(systemName: "trash") }).tint(.red)                             }                     }                     .onMove(perform: { from, to in                         fruits.move(fromOffsets: from, toOffset: to)                     })                 }             }             .navigationBarTitle("Fruits")             .toolbar {                 ToolbarItem(placement: .primaryAction) {                     EditButton()                 }             }         }     }     private func delete(_ fruit: Fruit) {         guard let index = fruits.firstIndex(where: {$0.id == fruit.id}) else { return }         fruits.remove(at: index)     } } struct ListingView_Previews: PreviewProvider {     static var previews: some View {         ListingView()     } }

To implement row reordering I know I could use List{ForEach{}.onMove} but in my situation I can't use List for reasons. So I need to implement my own item reordering using onDrag and onInsert. These modifiers use NSItemProvider. I think therefore my dragged data type needs to implement NSItemProviderWriting (and NSItemProviderReading). I've looked for examples but the closest code I've found is dragging URLs. When I try to implement these protocols in my type I end up with an error in .onInsert at (NSItemProvider item).loadObject(ofClass:MyType.self) that says "Instance method 'loadObject(ofClass:completionHandler:)' requires that 'MyType' conform to '_ObjectiveCBridgeable'" How should I be using .onDrag and .onInsert with a custom type?

I've been building my app on Xcode 13 when suddenly it doesn't know about the iOS 15 APIs. Here are a couple error examples: self.modified = Date.now // Type 'Date' has no member 'now' and operation.modifySubscriptionsResultBlock = { result in // Value of type 'CKModifySubscriptionsOperation' has no member 'modifySubscriptionsResultBlock' I can take the exact same code and build it on my other Mac and it builds properly. Both Macs are using Xcode Version 13.0 (13A233) and running macOS 11.6 (20G165). I checked the deployment info for project and target (iOS 15.0), but of course using git I know I have the exact same code base on both machines. Is there an Xcode preference or system file that got hosed? I tried reinstalling Xcode, but it didn't help.

I want to present a table using SwiftUI. I've gotten most of the way using LazyVGrid. Problem 1 is the last row's frame paints below the LazyVGrid frame when the last cell is taller than the others. Problem 2 is the last column shows multiline text. All cells on that row should be aligned using VerticalAlignment.firstTextbaseline. What happens is all of the cells end up vertically aligned. private var columns: [GridItem] = [ GridItem(.fixed(25)), GridItem(.fixed(25)), GridItem(.fixed(30), alignment: .trailing), GridItem(.flexible()) ] var body: some View { LazyVGrid(columns: columns, alignment: .leading) { ForEach(rows) { row in Text(row.a) Text("#\(row.b)") Text("(\(row.c))") Text(row.d) .multilineTextAlignment(.leading) .lineLimit(nil) } } } I explored using custom alignment guides istead of LazyVGrid, but I don't know how to apply more than one guide to achieve the effect of tab stops for each column.