200 VC is already pretty large. But may be you will also refactor during the redesign, to reduce the number of VC. Good luck and don't forget to close the thread.

Waiting what? Please take time and make the effort to formulate precisely your questions on the forum.

There is a third case: ignoring completely label. func anchorSizePercent(_ view: UIView, sFactor: CGSize) { } that you would call as myHeader.anchorSizePercent(myView, sFactor: CGSize(width: 0.8, height: 0.2)).    So it is a question of preference and that often depends on the name of the function itself to see if you need label or not and if label is the same name as parameter or not.

So, you run a beta version of iOS ?

Ok, so you need the tuple. What do you get exactly in data ?

That's one of the many limitations of Safari. Did you try with another browser ? Could you send a copy (pdf or other) of the FB. I will send one on my own.

I use an iPhone X with the latest OS as one of the test platforms.

I don't understand your code. Where is alert presented ?

My question was: could you show the complete code where you load devices ? Most likely you have an async issue.

Thanks for feedback. self.datas.removeAll() is equivalent to datas = [].

Looks like eskimo has provided the way to handle that. It depends on what you want to do with it and if taking into account daylight shift is of interest or not for you.

That was visibly easily understood by the OP writer, @Karonsbo. It simply means adding Codable to each struct declaration:  such as: struct Storage : Codable { var acc: Acc struct Acc : Codable {        Straightforward, isn't it ?

Thanks for feedback. I kew the other thread as I answered to it. Don't forget to close this one as well. Good continuation.

@xcvxcvxcv The term SwiftUI is confusing. SwiftUI uses Swift to build UI. Just as if you called UIKit SwiftUIKit (but UIKit works with objective C as well). So SwiftUI is at the level of UIKit, but with a lot more functionalities to automatically manage states of views.

Yes, it is an NSString func: https://developer.apple.com/documentation/foundation/nsstring/1410144-range