3

I'm new to swift and not sure why an image is loading from the url. The code:

 let url = NSURL(string: imageURL) let task = NSURLSession.sharedSession().dataTaskWithURL(url!, completionHandler: { (data, response, error) -> Void in println("Should load the pic!") var profilePic = UIImage(data: data) self.profileImage.setImage(profilePic) })

In my interface controller I have an image called "profileImage" that is linked with an IBOutlet. One thing I noticed is that "Should load the pic!" does not appear in the console so it is not getting to the setImage code..

Improve this question

2 Answers 2

Reset to default
4

when you downloading image from URL. I suggest you to do this in background. here is the example code for you:

import UIKit class ViewController: UIViewController { @IBOutlet weak var profileImage: UIImageView! override func viewDidLoad() { super.viewDidLoad() profileImage.contentMode = UIViewContentMode.ScaleAspectFit if let checkedUrl = NSURL(string: "http://www.apple.com/euro/ios/ios8/a/generic/images/og.png") { downloadImage(checkedUrl) } } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } func getDataFromUrl(urL:NSURL, completion: ((data: NSData?) -> Void)) { NSURLSession.sharedSession().dataTaskWithURL(urL) { (data, response, error) in completion(data: NSData(data: data)) }.resume() } func downloadImage(url:NSURL){ println("Started downloading \"\(url.lastPathComponent!.stringByDeletingPathExtension)\".") getDataFromUrl(url) { data in dispatch_async(dispatch_get_main_queue()) { println("Finished downloading \"\(url.lastPathComponent!.stringByDeletingPathExtension)\".") self.profileImage.image = UIImage(data: data!) } } } }
Improve this answer
Sign up to request clarification or add additional context in comments.

2 Comments

This is for Watchkit. Im getting error on self.profileImage.image = UIImage(data: data!). That says "WKInterfaceImage" does not have a member named 'image'
I just gave you an example..make changes in code as per your need..:)
0

Try this, as it may help you:

dispatch_async(dispatch_get_global_queue( DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), { var profilePic = UIImage(data: NSData(contentsOfURL: NSURL(string:"http://devhumor.com/wp-content/uploads/2012/04/devhumor.com_pointers.png"))); self.profileImage.setImage(profilePic); });
Improve this answer

Comments

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.