Swift:
I have UICollectionViewController with another file/class UICollectionViewCell
The goal is to push UIViewController
from my custom cell class.
something like this:
self.navigationController?.pushViewController(vc, animated: true)
I have no problems to implement push from didSelectItemAtIndexPath
in UICollectionViewController
but i want to do this from custom cell class registered into my UICollectionViewController
.
When i try to push view from custom cell class unfortunately i don't have access self.navigationController
Also i want to do this 100% programmatically. I don't use Storyboard or Nib files
Thanks in advance.
This is a bad idea. Views should not have/do that kind of logic. You should leave it with the Controller (that's what the MVC-Pattern is about).
Anyway:
class MyCollectionViewCell: UITableViewCell {
var myViewController: MyViewController!
}
and when the cell is dequeued you could set it like this:
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell
{
let cell: MyCollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier(myCellIdentifier, forIndexPath: indexPath) as! MyCollectionViewCell
let nvc: UINavigationController = UIStoryboard(name: "myStoryboard", bundle: nil).instantiateViewControllerWithIdentifier("myNavigationController") as! UINavigationController
cell.myViewController = nvc.childViewControllers.first as! MyViewController
return cell
}
and on selection:
func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath)
{
let cell: MyCollectionViewCell = collectionView.cellForItemAtIndexPath(indexPath) as! MyCollectionViewCell
// I don't know where vc comes from
cell.myViewController.navigationController?.pushViewController(vc, animated: true)
}
Still, there is no case I can think of, where this would make any sense. So rethink your architecture again.
Visualize the communication of your entities, by drawing it on a paper. You'll have to draw Models, Views and Controllers and only Controllers are allowed to "talk" to other Controllers.