To learn Swift, start with 'Intro to App Development with Swift' from Apple (in the library). Very clear and didactic.

So that could well be a compatibility issue between the pod and Xcode 12.5. You'd better ask Alamofire editor. after tag 4.8.2, they removed WWAN connectivity apis Where did you read this ? Unfortunately, that means that you will have to adapt your app anytime soon.

As OOPer stated, URL components is the safest. Otherwise, you could add manually: declare dataUrl as var and dataUrl = dataUrl.replacingOccurrences(of: " ", with: "%20") But components is safer way to go.

Did you try to unregister the device on Xcode and register again ?

In fact, X and Xs were already gone in Xcode 12.4. But don't forget that preview is just a helper. Your app should work and look good on any device.

A suggestion. Instead of the func, you could define String extension, with a property or a func extension String { var localized: String { NSLocalizedString(self, comment: "") } mutating func localize(comment: String = "") - String { NSLocalizedString(self, comment: comment) } } then you can call myString.localized or myString.localize() or myString.localize(comment:"Some comment") print("hello".localized) var myString = "hello you" myString = myString.localize(comment: "Some comment") // or myString = myString.localize() without comment print(myString)

Are they your own apps (ones you developed) or apps you downloaded. For the latter, what problem do you get ? For the former, did you try to update the app ? If you search on Google 'downgrade from iOS 14.5 to 14', you will find a lot of material. In any case, do a complete backup of your iPhone before, there is always a real risk to loose all your data.

writing "bla-bla-bla".localized looks ugly for my taste.  You're right, that's a question of taste. But there are already a lot like this in StringProtocol: "bla-bla-bla".localizedUppercase or "bla-bla-bla".localizedCapitalized If you need to keep your func, why not change it as: func localized(_ string: String, comment: String = "") - String { NSLocalizedString(string, comment: comment) } Doing so you can still call: cell.label.text = localized("Hello world")

Video is inaccessible. When running your code, just get a screen with show second view at top Tab 1 Un in the middle a field on the left at the middle, but quasi hidden a tab bar at bottom when I click button Which button, please be more precise I clicked on secondView only change state button which returns to the first view, just changed with Tab 1 Der in the middle Impossible to test anything.

OK, I could reproduce the crash (after deselecting I/O Keyboard Connect Hardware Keyboard). The crash seems due to the 2         switch tradingMode { } section If I comment out any of them, no more crash. If I reconnect Hardware Keyboard; no crash either. So problem is effectively caused by showing keyboard. Some conflict with the tabs ? I also get a crash if I tap on tab 2, without any keyboard. So there is a problem with tabs. I'll look further to it. I run Xcode 12.4 on MacOS 10.15.7

In your initial code, you set tag(0) both line 24 and 34. That may be the confusion ? Change line 34 with tag(1). Similarly, change line 46 to tag(0)

What do you expect to learn if you just ask others to do the work for you ? The right use of this forum is to explain first what you did Then the problem you have. Have you an idea of the algorithm to do this ? That's the first step, before coding.

Just a comment on the use of the forum. OOPer provided you with the right answer, that you put into your code. That's great. But the answer to mark as correct was OOPer's, not yours (that was not even correct in fact). Do it properly next time. Have a good day.

but when I tried doing the same in Xcode, Did you build a new project or tried to import the VS ? Creating a new project works flawlessly, no issue.

Of course I have code(s) for PrintView. But the content is very specific to the different apps. And too long to post here. If you post an email address, we could continue discussion through this mail channel.