Firebase is not a framework of Apple's. You should better find an appropriate place to ask about it to get better responses sooner. But generally, it is not considered to be a good habit to instantiate a class which will immediately disposed. var ref = DatabaseReference() ref = Database.database().reference().child("users").child(uid) Why don't you write it simply? var ref = Database.database().reference().child("users").child(uid)

I can view the result's search in any case (also with the json file with 40.000 record). No problem with the array or the json file is correct. That does not mean your code there is right.

Thanks for showing the code. But your code lacks many important parts needed to guess what's happening. It may be just 45000 record is too large, or you may be doing something wrong in the hidden parts of your code.

Can you show your code?

Not a big difference. Executable code such as if num1 2 { num2 += 1 } needs to be in an action closure of the button. Line 13...16 is a place to put Views, not the place for executable statements.

Your code does not make sense. Where is button? You are writing executable statements where Views are required. Put a button and write executable statements inside the action closure of the button.

As far as I read the message, and not contain more than one period . after the application's bundle ID The bundle identifier com.company.name.product.mobile.Share.External.Information is clearly against it. (And I have never found such an identifier in any of the articles explaining Share Extension.) or it should be like "com.company.name.product.mobile.shareexternalinformation". I haven't tried it myself, but it matches the description in the message, only one period . after the application's bundle ID.

Here is an example. LevelsViewController is a view controller that is displayed when tapping a tab bar item. UITabBarController collects tabBarItems of the content view controllers just after they are initialized. It is too late in viewDidLoad or viewWillAppear. Try something like this: override func awakeFromNib() { super.awakeFromNib() tabBarItem.title = "LevelsVC-TabBarItem".localize() } Or required init?(coder: NSCoder) { super.init(coder: coder) tabBarItem.title = "LevelsVC-TabBarItem"//.localize() } In this scenario, you have no need to subclass UITabBarController.

Path Progress and Courses are different Views. mClass is an array of classes  If somethings was wrong about them, an error would be shown on barHome. Please show the definitions of them if you want to fix your issue. Or if the SOLVED mark is not a mistake and you really have solved your issue, please share your solution.

Check the More Downloads page - https://developer.apple.com/download/more/. Xcode 12.4 would run on Catalina.

Can you show the definitions of mClasses and Courses? All such things may affect. And Path and Progress, please.

Don't you remember what I wrote before? Ignore the word scope in the error message and find what you need to define. When you get an error message like Cannot find 'signIn', it is signIn that you need to define, not Button. But your code currently shown does not make sense. Line 27...29: Text are not appropriate for WindowGroup Line 47: You cannot write Button at the toplevel of the code Line 51...59: Button is a predefined type in SwiftUI, it is not what you need to define

I mean I get data from server by API the data take time to load I want to refresh data automatically in background I may not be understanding what you mean yet, but it would work. Though, I have never tried to do background tasks with SwiftUI.

Is background fetch work with API ? What do you mean? Can you be more specific?

I e.g. use this function in a loop. Memory is not released. Many of the intermediate data consumed in Apple's APIs are autoreleased. Have you tried using autoreleasepool?