nskeyedarchiver | Golang based implementation of Swift/ObjectiveCs

I have a custom class that conforms to NSSecureCoding. I'm trying to encode its data, write it to a file, and decode it. The class contains an int array which I convert to an NSArray filled with NSNumber elements before encoding. When I decode the array, decodeObjectForKey returns nil. Also, when I write the encoded array to file, the plist doesn't look right. For example, it doesn't have the "key_for_ns_array" key anywhere in its structure.

Here's a simplified version of my code:

i am on macOS 10.15 (bigSUr), XCode 12, objective-c not ios.

I have document based app. It has a simple object "SHGlobalAppData" (NSObject) that contains a property object of a custom class "SHSetupDataModel" (NSObject).

When loading, initWithCoder returns nil for a saved value. Why?

This is the implementation:

I use NSSecureCoding, therefore both SHSetupDataModel and SHGlobalAppData have included the appropriate class method

I have a class named Person and created a Person instance "person".

I'm saving some colors picked with a colorPickerView in UserDefaults to display them in a collectionView.

My vc works like this:

• You press a cell in the collection view;
• The cell's index is collected in userdefaults;
• At the same time the colorPickerView is displayed;
• The user chooses a color, the picker is dismissed and the color is displayed in a collection view cell;

When I call the methods to dismiss the colorPickerView, I save the picked color with userDefaults and I refresh both the array containing my colors (yes I know it's not recommended but I haven't found a better way to do that yet) and the collection view which displays them. The problem is that after I refresh the array, everything in my view controller doesn't respond anymore to my commands (if I press on my collection view's cells they do nothing).

I have a project which was written (iOS part) with Swift 4. I update it to 5 but now I have this warnings. I've tried to fix it as it's suggest but I get different error each time. Could you help me with it?

Code

I have an array of dictionaries securely encoded into data files pre 10.13. Hopefully they can be decoded with the API changes to NSKeyedArchiver/NSKeyedUnarchiver in 10.13. Right now I am not able to decode securely a typed array [[String: Any]] in the newer API. Is there any way to do this?

I tried save devicetoken into userDefaults for later use.

I'd like to know whether it is possible to convert a worldMap binary data (that stores a space-mapping state and set of ARAnchors) to json or xml file?

In my non-ARC iOS project, I have a method that returns archived data: