How to make NSAttributedString codable compliant?

Question

What is the problem?

Currently I am building an app-extension on my main app which communicates via a JSON. Theming and data is located in the JSON and is being pa

Answer 1

NSAttributedString conforms to NSCoding so you can use NSKeyedArchiver to get a Data object.

This is a possible solution

class AttributedString : Codable {

    let attributedString : NSAttributedString

    init(nsAttributedString : NSAttributedString) {
        self.attributedString = nsAttributedString
    }

    public required init(from decoder: Decoder) throws {
        let singleContainer = try decoder.singleValueContainer()
        guard let attributedString = try NSKeyedUnarchiver.unarchiveTopLevelObjectWithData(singleContainer.decode(Data.self)) as? NSAttributedString else {
            throw DecodingError.dataCorruptedError(in: singleContainer, debugDescription: "Data is corrupted")
        }
        self.attributedString = attributedString
    }

    public func encode(to encoder: Encoder) throws {
        var singleContainer = encoder.singleValueContainer()
        try singleContainer.encode(NSKeyedArchiver.archivedData(withRootObject: attributedString, requiringSecureCoding: false))
    }
}