UICollectionViewCell's subview absolute frame - swift

Question

Have been having this issue that I considered to be an easy solve, but spent a lot of time cracking it with no result.
So, I have a UIViewController with UICollectionView in it. This collection is padded 75 px from the top and has cells with pretty simple setup - just 1 UIImageView set to fit the size of the container. Everything is made with AutoLayout.
My task is to make UIImageView go full screen on tap. What I am doing is making a temporary UIImageView and add to the hierarchy of UIViewController view.
The problem I am facing is I can't get the absolute frame of UIImageView in the cell I tap.
I tried various ways to calculate the frame, my most recent try is
var rect = cell.imageView.superview!.convertRect(cell.imageView.frame, toView: self.view)
However, it returns result that seems to be ignoring the collection view top constraint.
Update:
It turns out my problem was in the wrong way I was acquiring the cell from collection view. Instead of:
let cell = collectionView.cellForItemAtIndexPath(indexPath) as! UIImageCollectionViewCell
I was getting cell with
let cell = self.collectionView(collectionView, cellForItemAtIndexPath: indexPath) as! UIImageCollectionViewCell
Which obviously resulted in creating a new cell with the wrong frame. My bad, late night coding is not the best thing sometimes. Thanks to Arun Ammannaya for the quick example

Answer 1

This what i tried, works as expected.
class ViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource {
#IBOutlet var collectionView: UICollectionView!
override func viewDidLoad() {
super.viewDidLoad()
}
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 10
}
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
return collectionView.dequeueReusableCellWithReuseIdentifier("aaa", forIndexPath: indexPath)
}
func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {
return 10
}
#IBAction func frame(sender: AnyObject) {
print(String(sender.frame))
let rect = sender.superview??.convertRect(sender.frame, toView: self.view)
print(String(rect))
let addedView = UIView()
view.addSubview(addedView)
addedView.frame = rect!
addedView.backgroundColor = UIColor.yellowColor()
}
}
Story board looks like:
Output is looks like: