Save Data to .plist File in Swift

Question

I am trying to save data to a plist file in swift, but the data isn\'t showing up as it was saved when the plist is read. This is the code I was using.

var          


        

Answer 1

struct Plist {

enum PlistError: ErrorType {
    case FileNotWritten
    case FileDoesNotExist
}

let name:String

var sourcePath:String? {
    guard let path = NSBundle.mainBundle().pathForResource(name, ofType: "plist") else { return .None }
    return path
}

var destPath:String? {
    guard sourcePath != .None else { return .None }
    let dir = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0]
    return (dir as NSString).stringByAppendingPathComponent("\(name).plist")
}

init?(name:String) {

    self.name = name

    let fileManager = NSFileManager.defaultManager()

    guard let source = sourcePath else { return nil }
    guard let destination = destPath else { return nil }
    guard fileManager.fileExistsAtPath(source) else { return nil }

    if !fileManager.fileExistsAtPath(destination) {

        do {
            try fileManager.copyItemAtPath(source, toPath: destination)
        } catch let error as NSError {
            print("Unable to copy file. ERROR: \(error.localizedDescription)")
            return nil
        }
    }
}


func getValuesInPlistFile() -> NSDictionary?{
    let fileManager = NSFileManager.defaultManager()
    if fileManager.fileExistsAtPath(destPath!) {
        guard let dict = NSDictionary(contentsOfFile: destPath!) else { return .None }
        return dict
    } else {
        return .None
    }
}

func getMutablePlistFile() -> NSMutableDictionary?{
    let fileManager = NSFileManager.defaultManager()
    if fileManager.fileExistsAtPath(destPath!) {
        guard let dict = NSMutableDictionary(contentsOfFile: destPath!) else { return .None }
        return dict
    } else {
        return .None
    }
}

func addValuesToPlistFile(dictionary:NSDictionary) throws {
    let fileManager = NSFileManager.defaultManager()
    if fileManager.fileExistsAtPath(destPath!) {
        if !dictionary.writeToFile(destPath!, atomically: false) {
            print("File not written successfully")
            throw PlistError.FileNotWritten
        }
    } else {
        throw PlistError.FileDoesNotExist
    }
}
}

Now, implement below in your view controller.

        if let plist = Plist(name: "plist file name") {
        let dict = plist.getMutablePlistFile()!
        dict["key"] = value

        do {
            try plist.addValuesToPlistFile(dict)
        } catch {
            print(error)
        }
            print(plist.getValuesInPlistFile())
        } else {
           print("Unable to get Plist")
        }