UIImage(data: NSData) error: Missing argument for parameter 'inBundle' in call

mharris7190 Published at Dev

mharris7190

Im storing an NSURL for a Facebook profile picture that looks like "http://graph.facebook.com/(id)/picture?type=large" where id is the user's id.

I want to display the image from that url in a UIImage

I am trying to do this like so:

var data = NSData(contentsOfURL: profilePictureURL)

cell.backgroundImage = UIImage(data: data)

But XCode throws an error on that second line that says:

"Missing argument for parameter 'inBundle' in call" but obviously that's not a parameter in this call. I even tried adding it once before and once after like UIImage(data: data, inBundle: nil) and reversed but it said "extra argument inBundle"

Help please!

**** EDIT ****

Found the problem:

cell.backgroundImage = UIImage(data: data)

should be

cell.backgroundImage.image = UIImage(data: data)

Rob

As you note, you want to set the image property of cell.backgroundImage. Also, you will want to unwrap that optional.

You can do a forced unwrapping:

let data = NSData(contentsOfURL: profilePictureURL)
cell.backgroundImage.image = UIImage(data: data!)

Or, a little safer, and optional binding:

if let data = NSData(contentsOfURL: profilePictureURL) {
    cell.backgroundImage.image = UIImage(data: data)
}

And, if you want to be especially prudent, and do this asynchronously, it would look like:

cell.backgroundImage.image = nil  // initialize it to nil before we go to get image asynchronously

NSURLSession.sharedSession().dataTaskWithURL(profilePictureURL) { data, response, error in
    if data == nil {
        println("dataTaskWithURL error: \(error)")
    } else {
        if let image = UIImage(data: data) {
            dispatch_async(dispatch_get_main_queue()) {
                cell.backgroundImage.image = image
            }
        }
    }
}

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