ios - 无法将时间 'Int' 的值转换为 Swift 2 中的预期参数类型 'NSPropertyListReadOptions'

Question

我正在将我现有的代码升级到 Swift 2，我需要一些关于保存 Plist 文件的帮助

此代码在 Xcode 6.3 中工作，但现在在 Xcode 7 和 Swift 2 中显示此错误:

Cannot convert value of time 'Int' to expected argument type 'NSPropertyListReadOptions' (aka 'NSPropertyListMutabilityOptions')

var resultValue = "Value goes here"


@IBAction func saveNote(sender: AnyObject) {
    // Save note to plist
    var appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
    var pathForThePlistFile = appDelegate.plistPathInDocument

    // Extract the content of the file as NSData
    var data:NSData =  NSFileManager.defaultManager().contentsAtPath(pathForThePlistFile)!
    // Convert the NSData to mutable array
    var notesArray = (try! NSPropertyListSerialization.propertyListWithData(data, options: Int(NSPropertyListMutabilityOptions.MutableContainersAndLeaves.rawValue), format: nil)) as! NSMutableArray
    //

    notesArray.addObject(resultValue)
    // Save to plist
    notesArray.writeToFile(pathForThePlistFile, atomically: true)
}

请帮忙!

Answer 1

我认为您不需要将选项参数转换为 Int，它应该采用 NSPropertyListMutabilityOptions 类型的值:

var notesArray = (try! NSPropertyListSerialization.propertyListWithData(data, options:NSPropertyListMutabilityOptions.MutableContainersAndLeaves, format: nil)) as! NSMutableArray