How to read from a plist with Swift 3 iOS app

Question

-Disclaimer-
I\'m extremely new to iOS and Swift development, but I\'m not particularly new to programming.

I have a basic iOS applicati

Answer 1

As Swift 4 introduces Codable

Step 1: Load the Plist File from bundle.

Step 2: Use PropertyListDecoder for the decoding of property list values into semantic Decodable types.

Step 3: Create Codable Struct

Complete code -

 func setData() {
        // location of plist file
        if let settingsURL = Bundle.main.path(forResource: "JsonPlist", ofType: "plist") {

            do {
                var settings: MySettings?
                let data = try Data(contentsOf: URL(fileURLWithPath: settingsURL))
                    let decoder = PropertyListDecoder()
                settings = try decoder.decode(MySettings.self, from: data)
                    print("toolString is \(settings?.toolString ?? "")")
                print("DeviceDictionary is \(settings?.deviceDictionary?.phone ?? "")")
                print("RootPartArray is \(settings?.RootPartArray ?? [""])")

            } catch {
                print(error)
            }
        }
    }
}
struct MySettings: Codable {
    var toolString: String?
    var deviceDictionary: DeviceDictionary?
    var RootPartArray: [String]?

    private enum CodingKeys: String, CodingKey {
        case toolString = "ToolString"
        case deviceDictionary = "DeviceDictionary"
        case RootPartArray
    }

    struct DeviceDictionary: Codable {
        var phone: String?
        init(from decoder: Decoder) throws {
            let values = try decoder.container(keyedBy: CodingKeys.self)
            phone = try values.decodeIfPresent(String.self, forKey: .phone)
        }
    }
    init(from decoder: Decoder) throws {
        let values = try decoder.container(keyedBy: CodingKeys.self)
        toolString = try values.decodeIfPresent(String.self, forKey: .toolString)
        deviceDictionary = try values.decodeIfPresent(DeviceDictionary.self, forKey: .deviceDictionary)
        RootPartArray = try values.decodeIfPresent([String].self, forKey: .RootPartArray)

    }
}

Sample Plist file -> https://gist.github.com/janeshsutharios/4b0fb0e3edeff961d3e1f2829eb518db