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 Self-Destructing Message iPhone App Using Parse.com as a Backend and Adding Users Logging In and Logging Out

Jeremie Robbins
Jeremie Robbins
3,095 Points
Posted by Jeremie Robbins
Jeremie Robbins
3,095 Points

How do I call a block in a class method.

I am trying to pass the loginHandler to the PFUser method logInWithUsernameInBackground. Any help would be appreciated.

1 Answer

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

you just use the name of the block as the argument. since our block is called loginHandler we pass it to the loginWIthUsernameInBackground:password:block method like so

[PFUser  logInWithUsernameInBackground:@"test" password:@"test" block:loginHandler];