How to launch a ViewController from a Non ViewController class?

Question

the title says it all, i usually open ViewControllers like this

ListingViewController *listingView = [[ListingViewController alloc]init];
[self.navigationCon         


        

Answer 1

Use the UICollectionViewDelegate method didSelectItemAtIndexPath for doing this and make sure that this delegate method is present in the view controller class implementing the UICollectionView.