Master Detail app in Swift - how to convert string into URL - swift

Question

I'm new here, so please bear with me. I have a Master-Detail app, and in the DetailViewController.swift file, here's the configureView func where it calls a web view to open a web page.
It's complaining on the let request = URLRequest(url:url) line because url variable is defined as a string. I've tried everything but it won't work.
By the way, MasterViewController.MyVariables.urlString is an array of strings.
func configureView() {
// Update the user interface for the detail item.
if let detail: AnyObject = detailItem {
if let myWebview = webView {
let url = MasterViewController.MyVariables.urlString
let request = URLRequest(url: url)
myWebview.scalesPageToFit = true
myWebview.loadRequest(request)
}
}
}

Answer 1

You can either pass an URL object or create an URL object from the string that you´re passing. Anyhow you need to convert your string into an URL.
if let url = URL(string: MasterViewController.MyVariables.urlString) {
// use url in here
}
Update:
Use this for your example:
if let url = URL(string: MasterViewController.MyVariables.urlString) {
// use url in here
let request = URLRequest(url: url)
}
Update 2:
You have your Struct which is an array of strings. Then you need to do this to get the value you want:
struct MyVariables {
static var urlString: [String]? = ["something"]
}
if let str = MyVariables.urlString?.first, let url = URL(string: str) {
// use url in here
let request = URLRequest(url: url)
print(url)
}
Right now I´m using MyVariables.urlString?.first, in the future if you want another index then you need to get that instead.

Answer 2

This is what I did to make it work:
let stringRepresentation = MasterViewController.MyVariables.urlString?.joined(separator:"")
print ("urlString", MasterViewController.MyVariables.urlString)
print ("sR",stringRepresentation)
let url = NSURL(string: stringRepresentation as! String)
let request = URLRequest(url: url! as URL)
myWebview.scalesPageToFit = true
myWebview.loadRequest(request)