I'm determining to use DispatchQueue, DispatchQueue.global() or OperationQueue to run code in background thread in my app. Let's say I queue some tasks on these queues and then switch to another app or lock screen for a while, which results…
I used to filter using initializers like this(example): struct ArticleView: View { @Environment(.modelContext) private var modelContext @Query private var articleStates: [ArticleState] let article: Article init(article: Article) { self.article = article _articleStates = Query(filter: #Predicate { $0.articleID == article.id } )…
I’m trying to write a wrapper for the print() function which also includes the current line number. I have something like this: // wrapper around print: func dbug(_ things: Any...) { print("(#line): ", things.map {"($0)"}.joined(separator: ", ")) } // elsewhere:…
Here, hasComplexWave is a Boolean @State on a SwiftUI View. Here’s the code that uses it: view.visualEffect { [hasComplexWave] content, proxy in content.distortionEffect( ShaderLibrary.complexWave( .float(startDate.timeIntervalSinceNow), .float2(proxy.size), .float(0.5), .float(8), .float(10) ), maxSampleOffset: CGSize(width: 100, height: 100), isEnabled: hasComplexWave ) } The…
The simple code below moves the text by updating the @State var offset within a withAnimation block. struct ContentView: View { @State var offset: CGFloat = 0 var body: some View { NavigationView { VStack { Text("Some moving text") .offset(y:…
I have a fulscreen SpriteKit scene view, that handles pan gestures within itself. Over it, I have overlaid native SwiftUI views with OnTapGesture, which must react to them being touched but should not interfere with pan gestures, and pass them…
The following SwiftUI code will generate Bottom Tab public struct TeamBContentView : View { public init() {} public var body: some View { VStack { TabView { Text("This is home screen") .tabItem { Text("Home") Image(systemName: "house.fill") } Text("This is about…
I am trying to extend UIApplication to conform to a custom protocol AppSwitcher for handling URL opening. This code worked fine in Xcode 15, but after upgrading to Xcode 16, it is causing errors. public protocol AppSwitcher { func open(…
Problem I'm trying to implement a language change feature in my SwiftUI app where when a user selects a new language, the app should restart and appear in the selected language. Currently, the language changes, but the UI doesn't fully…
In iOS 18, textSelection(_:) not working in List. So, I can't copy text. Works on iOS 17 and earlier. Is there any solution? // Not Work: iOS 18 struct ContentView: View { var body: some View { List { Text("Hello…