CODEWITHSUNDEEP
iosswiftuiwebviewswift2
random
random

Reputation: 8608

UIWebView crashing when loading URL

This should be really straightforward but I have no idea why this code is not working. I try to load a basic URL into a UIWebView like this: 

    let string = "www.google.com".stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLQueryAllowedCharacterSet())
    let url = NSURL(string: string!)

    if let ur = url {
        let request = NSURLRequest(URL: ur)
        webView.loadRequest(request)
    }

However each time I get this error:

fatal error: unexpectedly found nil while unwrapping an Optional value

Stepping through it nothing is nil. Figured I'd do this just to make sure: 

    let string = "www.google.com".stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLQueryAllowedCharacterSet())

    // unwrap the string
    if let str = string {

        let url = NSURL(string: str)

        // unwrap the url
        if let ur = url {
            let request = NSURLRequest(URL: ur)
            webView.loadRequest(request)
        }
    }

Which I still get the same crash! If I look at the thread I get this when running on a device:

0x656d6c <+68>: bl 0x6abac4 ; function signature specialization 1 = Exploded> of Swift.(_fatalErrorMessage (Swift.StaticString, Swift.StaticString, Swift.StaticString, Swift.UInt) -> ()).(closure #2)

So my UIWebView is nil somehow...I have everything hooked up correctly? Any ideas enter image description here

Upvotes: 0

Views: 2393

Answers (2)

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random

Reputation: 8608

@penatheboss answers was correct however I wanted to post how I fixed it. My IBOutlets were hooked up correctly however my UIWebView was always nil in my class. Even in viewDidAppear.

How I fixed it:

  • Cleaned my project
  • Quite Xcode
  • Deleted the derived data folder
  • Reopened project Build

Then it worked fine with the original code I posted. Talk. About. Annoying.

Upvotes: 0

Pranav Wadhwa
Pranav Wadhwa

Reputation: 7736

The WebView itself must be nil. If there is an empty circle to the left of the outlet, reconnect it by dragging and dropping from the view to the outlet.

Upvotes: 1

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