Generate XML files with swift

You could use XMLDocument to write XML. For example:

import Foundation
let root = XMLElement(name: "root")
let xml = XMLDocument(rootElement: root)
root.addChild(XMLElement(name: "foo", stringValue:"bar"))
print(xml.xmlString)

I made this new simple and lightweight XML parser for iOS in Swift - AEXML

You can use it to read XML data like this:

let someValue = xmlDocument["element"]["child"]["anotherChild"].value

or you can use it to build XML string like this:

let document = AEXMLDocument()
let element = document.addChild("element")
element.addChild("child")
document.xmlString // returns XML string of the entire document structure

NSXMLDocument works for OSX, but does not exist on iOS, so this will help in that case.