Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Build a Photo Browser iPhone App Downloading Data with NSURLSession NSURLSession Basics

Struggling to get code to work with [task resume] part of challenge. Help would be appreciated.

Hi, struggling to pass this challenge. Have entered the following code but this just results in being told that resume was not called.

/* Add task 2 code below */ NSURLSessionDownloadTask *task;

[session downloadTaskWithRequest:request completionHandler: ^(NSURL *location, NSURLResponse *response, NSError *error) { NSLog(@"Response: %@", response); }];

[task resume];

Any help will be appreciated, thank you.

2 Answers

Chris Shaw
Chris Shaw
26,676 Points

Hi,

All your code is correct with the exception that you haven't assigned the NSURLSessionDownloadTask instance back to your task variable like I've done below.

task = [session downloadTaskWithRequest:request completionHandler: ^(NSURL *location, NSURLResponse *response, NSError *error) { NSLog(@"Response: %@", response); }];

Thanks a lot Chris!