How To update dispatch_async to Swift 3

Question

Hello! I am updating my app (I'm a little far behind lol) to Swift 3. I have a line of code in my app that uses dispatch_async and dispatch_get_main_queue() But, now it's been updated in Swift 3, so can you help me update this code to swift 3? Here's the snippet of the code: (line 04 is where I am having the issue)

             //        Create an dataTask and pass in the quest
            let dataTask = session.dataTask(with: request, completionHandler: { (data, response, error) in
            
                dispatch_async(dispatch_get_main_queue(), { () -> Void in
            
//                Get a reference to the imageView element of the cell
                let imageView = cell.viewWithTag(1) as! UIImageView
            
//                Get an image object from the data and assign it into the imageView
                imageView.image = UIImage(data: data!)
            
            })
        
        })
        
        dataTask.resume()
        
        }
    
        return cell

Thanks for the help!

Swift

3.7k

Posted by

iFunnyVlogger Dev

Reply

Add a Comment

Answer 1

Write :

DispatchQueue.main.async

To create your own queue :

DispatchQueue.global(qos: .userInitiated).async

But normally, this is translated automatically from Swift 2 to Swift 3

Posted by

Claude31

Add a Comment

Answer 2

So, I'm sort of confused (sorry). What do I need to replace my line 04 with. I've been troubleshooting, and I can't figure it out. Sorry...

Posted by

iFunnyVlogger Dev

Add a Comment

Answer 3

The following code is what you expected T_T:

DispatchQueue.main.async {

//your code

}

Posted by

Never

Add a Comment

Answer 4

So, your code will be:

//        Create an dataTask and pass in the quest
            let dataTask = session.dataTask(with: request, completionHandler: { (data, response, error) in
           
                DispatchQueue.main.async {            
//                Get a reference to the imageView element of the cell
                let imageView = cell.viewWithTag(1) as! UIImageView       
//                Get an image object from the data and assign it into the imageView
                imageView.image = UIImage(data: data!      
            }
       
        })
       
        dataTask.resume()
       
        }
   
        return cell

Posted by

Claude31

Add a Comment

How To update dispatch_async to Swift 3

Replies