I started learning Swift 3 days ago and I think you will understand it. But every time I want to put a Text or Image to the Button, It gives me this error: Result of 'Image' initializer is unused /…
Starting with swift 4.2, an error appears. In previous versions the code works fine (swift 3, 4). How to write this code correctly now? swift4 swift4.2 class GameViewController: UIViewController { var scene: SCNScene! var scnView: SCNView! override func viewDidLoad() {…
Hi I'm a beginner at programming and I followed a tutorial online to parse information from a Json file. In order to get an URL link, I created a local server that contains a json file. When I start the…
I've been working on an iOS app and I'm trying to display a navigation bar to my app. I use a storyboard to just work on some basic UI, but for the other part like the navigation bar, I'm trying…
So, I want to prefetch some of the data needed in the view controllers associated with the tab bar controller as the user moves from the login page to the home page (tab bar controller exists between these two view…
Today, iOS developers use lots of third-party to faster development. I have a question for Xcode archive process. When Xcode archive an app for release, when I choose optimizing for smallest and fastest, the useless code will not in ipa…
Xcode 13 and iOS 15 began warning about missingAllowedClasses when using custom DataTransformers. There is very little documentation on custom DataTransformers, so I thought I would post a question and answer it here. [general] *** -[NSKeyedUnarchiver _warnAboutPlistType:missingInAllowedClasses:] allowed unarchiving safe…
When executing the .onDelete function, I am getting an index out of range. I have successfully used onDelete elsewhere in my app, deleting data directly from core data. This version is to only delete from a list not stored in…
My app starts off with a Tab Bar Controller on the first screen after logging in: Later on the user can tap to get back to that screen, by pressing the Home button. The code for that is: self.present(self.mealPlanViewController, animated:…
I'm trying to build an IOS project on Xcode 12.5. There is no problem when the real device is connected or when I try to build with the simulator. But I get this error when Any IOS Device is selected.…