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Questions tagged [swift5]

Use this tag only for questions directly related to changes in version 5 of Apple's Swift programming language. Use the tag [swift] for more general language questions, or the tags [ios], [cocoa], [apple-watch] etc. for questions about developing on Apple platforms.

Swift 5 is a version of the Swift language developed by Apple and was released March 26th, 2019 with Xcode 10.2. The language is open source and available on GitHub (see ).

Swift 5 follows and .

Swift 5 Release Notes for Xcode 10.2.

3158 questions
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SwiftUI: Cannot infer contextual base in reference to member

I wrote an extension for SwiftUI Font which introduces a couple of custom fonts. extension Font { static let solDisplay: Font = .custom("Gilroy", size: 36) static let solHeadline: Font = .custom("Gilroy", size: 24) } Now for some reason…
JaWeilBaum
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iOS ARView and MTKView - how to restore camera position?

I have an iOS point cloud app and am trying to allow the user to keep adding points to an existing point cloud across multiple sessions. I have a Metal MTKView, overlaid and aligned with an ARView underneath. When I have the .showSceneUnderstanding…
Alex Stone
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Cannot convert value of type 'Codable' (aka 'Decodable & Encodable') to expected argument type 'T.Type'

I'm working on a small struct that handles the parsing of JSON. Up until now it is all working except I am wanting to pass a custom struct as a structure to use on the decode in JSONDecoder().decode(type.self, from: data) but this is throwing the…
Joe Scotto
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Unable to change color of menu items in NavigationBarItems in SwiftUI

I have menu items at the leading and trailing edges of the NavigationBar. I am not able to change the color of the menu items. I am, however able to change the color of the icon of the Navigation bar itself but not the menu items that are under the…
RXP
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How to detect if Local Network permissions are granted in iOS 14

How to detect if the user has granted the local network permission in the app for iOS 14? I have to show an error screen if the user has denied permission and redirects to os settings to grant permission. Has Apple provided any way to find out just…
riyaz
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Swift - Cannot get real text from UITextField - get NCIStr result instead

I have a UITextField that has the "Secure Text Entry" checked in my storyboard. When I assign the text of the UITextField.text property to a variable I get a value of: class name = _NSClStr instead of the actual value of the text which is: ABCD If I…
TJ Asher
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SwiftUI drag gesture freezes with multi-touch

I am trying to drag a view in SwiftUI. The drag works perfectly until I place my second finger on screen, after that the drag stops and neither of the code blocks (onChanged, onEnded) gets called. But, when I again start dragging with a single…
SandeepAggarwal
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CoreData has problems with sync data to cloud on a MacOS app due to pending request error

I am writing an app for MacOS and main feature will be syncing data to iCloud. All that I've already done is - project with Core-Data and CloudKit options turned on, - created a model and some basic routine to create model by importing file to…
metal_man
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Swift : cannot convert return expression of any view to return type some view

I don't know what I have this error : cannot convert return expression of any view to return type some view I try some things but nothing nothing worked... And I found nothing on the web Thanks for your help... struct LoginView: View { …
Keal Mlj
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iOS 13.4 When app goto background from foreground network is getting disconnect

Steps to reproduce: Create a new app and call any API to the server to get data immediately take the app to background network get disconnects below is the log: 2020-03-26 17:21:00.894598+0530 TestApp[783:152843] Connection 2: received failure…
lreddy
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'Cannot use mutating getter on immutable value: 'self' is immutable' when iterating?

Does anyone know why the self.indexCount in the ForEach is giving the error Cannot use mutating getter on immutable value: 'self' is immutable error? I can provide aView with indexCount, but it's not very convenient. I'm not changing indexCount. Is…
HelloWorld
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How to resize UIHostingController to wrap it's SwiftUI View?

I have a basic SwiftUI component. struct PopupModal: View { var body: some View { Text("Hello, World!") } } struct PopupModal_Previews: PreviewProvider { static var previews: some View { PopupModal() } } And I have…
Aidan Rosswood
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UITests fail when run with Fastlane

I am working on an iOS app and the goal is to successfully run tests using Fastlane. When I run tests with Xcode, everything works fine. Tests are only failing when run using Fastlane. This is the error message: Failed to get matching snapshots:…
arber
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How to integrate Google reCAPTCHA in Swift

I am working on an iOS project the client requirement is to put the Google reCAPTCHA authentication in the registration form.so, is there any way that I can do it as an android or website. I searched a lot but I didn't get any specific exact…
Kumar Lav
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How to write Unit Test for UserDefaults

I have 2 functions where one basically retrieves string in User Defaults and another writes the string in User Defaults. I'm not able to understand that should I do the unit test or no? and I'm pretty new to the concept for Unit testing. I scoured…
Kane D
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