Simple Swift WebView not working (Xcode 6 Beta 3) - uiwebview

Question

I was writing a simple WebView in Swift, but everytime I try to launch it in the iOS Simulator I get these errors. What is going wrong?
import UIKit
class ViewController: UIViewController {
#IBOutlet var webview: UIWebView
var urlpath = "http://www.google.de"
func loadAddressURL(){
let requesturl = NSURL(string: urlpath)
let request = NSURLRequest(URL: requesturl)
webview.loadRequest(request)
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
loadAddressURL()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
Error:
fatal error: unexpectedly found nil while unwrapping an Optional value
(lldb)
self uiwebview.ViewController 0x7987fc70 0x7987fc70
request NSURLRequest * 0x78ebfc40 0x78ebfc40
requesturl NSURL * "" 0x78ec0040

Answer 1

You simply haven't connected your UIWebView to the webview class property
Open the assistant editor, show your xib or storyboard at left, your view controller source file at right, click on the circle at the left of the webview property and drag into the UIWebView control. Once the connection is established, run the app and it should work now

Answer 2

I guess you get a white page because you test on the simulator. If you test on a real device you should be fine.

Answer 3

You need to put "!" after 'UIWebView' and unwrap "requesturl" to get your String value otherwise it's been an optional and you get error.
import UIKit
class WebViewController: UIViewController {
#IBOutlet var webview: UIWebView!
var urlpath: String = "http://www.google.de"
func loadAddressURL(){
let requesturl = NSURL(string: urlpath)
let request = NSURLRequest(URL: requesturl!)
webview.loadRequest(request)
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
loadAddressURL()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}