However, the part with the if runs before it can be purchased Please clarify: Where is the part with the if? When is the time it can be purchased? In my opinion, your code is too complex than it should be so just showing the code does not explain enough.

Would you like me to give you my project so you can run it? Thank you for your proposal, but as far as I see the code you have already shown, the whole project would not clarify what I want to know. The if I am talking about is on line 15 and it is supposed to prompt to get purchased if not purchased already If you say the if on line 15 is not working as you expect, why are you setting setIconPurchased to true before it is ready?

Once an icon gets purchased, setIconPurchased gets set to true, and then if it equals true it does more actions. Then your code is quite right. Please go on with your current code.

With this line: var randomSeq: [Int] = [] You initialize randomSeq with a zero-length Array. So, any index including 0 would cause Index out of range. In Swift, accessing an Array with subscript does not automatically extend the Array, and may cause Index out of range. I guess, you may need to write something like this: import Foundation let maxLevel: Int = 99 var randomSeq: [Int] = [] struct NumGen { static func generate() { //randomSeq.removeAll() for i in 1...maxLevel { randomSeq.append(Int.random(in: 1...4)) print(i) } } }

Can you show your example kml?

Thanks, I could have downloaded the xml file. A bit long, but can you try this? po overlays.map {$0 as! MKPolyline}.map {Array(UnsafeBufferPointer(start:$0.points(),count:$0.pointCount))}

the numbers below are much much larger?  MKPolyline converts CLLocationCoordinate2D (which holds latitudes and longitudes) into MKMapPoint. I am not sure if the shown values are too large or sort of invalid as MKMapPoint.

If you want to unconvert MKMapPoint in MKPolyline to CLLocationCoordinate2D, you may need a little more complex code. Please add these lines in the code where overlays is valid: overlays.forEach {overlay in if let polyline = overlay as? MKPolyline { var coords = Array(repeating: CLLocationCoordinate2D(), count: polyline.pointCount) polyline.getCoordinates(&coords, range: NSRange(0..polyline.pointCount)) print(coords) } } Have a good sleep.

it appears I was misunderstanding the way the static keyword works in Swift. I hope you have noticed that showing what you tried would give you the solution sooner. it does provide a cleaner solution to tie this to the class rather than making it a true global. It depends on how a is used. But in most cases it might be a clearer solution. Hoping yours would not be an exception. By the way, in Swift you use Capitalized identifiers for types. You should better follow the basic coding rule of Swift if you continue coding in Swift.

How do I declare protocol App in context ? The protocol App is defined in the framework SwiftUI, which is not something you need to define. Do you get any sort of errors with your shown code?

How can I wait until an IAP transaction/restore is finished? Hard to say something concrete and sure without seeing the details, but you may need to change your way of thinking. Not wait until, but do something when. If you were accustomed to completion handler pattern, it would not be so difficult.

This was the code that seemed to compile circa 2016. As far as I know, none of the Swift compilers accepted String.self as AnyClass. And at least in Xcode 8.3.3 (early 2017, I think), it does not compile. You may be confused with something else. So is the correct approach to work with NSStrings in ValueTransformers? It is not clear what you really want to do so not sure if it is correct or not. But usually NSString in Objective-C side would automatically converted to String in Swift. If you could clarify what you were trying to do, I would be able to show some example.

Cannot find AdvancedSettingsView in scope ? As already said in another thread of yours, the scope for type names is usually whole your project. You may need to add AdvancedSettingsView.swift into your project and write the right definition of AdvancedSettingsView in it. Please be careful about spellings.

There is not other method to declare the scope beside creating a new SwiftUI view file ? Correct. The scope is defined by the definitions. You can add AdvancedSettingsView in the same file if you prefer. But anyway, you need a definition of AdvancedSettingsView somewhere in your project.

Seems the current KMLParser cannot detect the right styles for LineString from xml file. You can set some fixed value in overlayPathRenderer: var overlayPathRenderer: MKOverlayPathRenderer? { if _overlayPathRenderer == nil { if let overlay = self.overlay { _overlayPathRenderer = geometry?.createOverlayPathRenderer(overlay as! MKShape) if let renderer = _overlayPathRenderer as? MKPolylineRenderer { renderer.strokeColor = .blue renderer.lineWidth = 2 } style?.applyToOverlayPathRenderer(_overlayPathRenderer!) } } return _overlayPathRenderer }