Collection View delete item in depending on its location - ios

Question

I have created a collection view that pulls from an array of images (8 right now, but user can add more). I originally was using a scrollview, but found it easier with a collection, and thanks to this great community, went to a collection view. I need to find the indexPath to delete an item at a given point. So here is some code I have so far, but I am new to this specifically. Here is some code I currently have.
class ViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource {
#IBOutlet weak var myCollectionView: UICollectionView!
func numberOfSections(in collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return imageArray.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! UserFeedCollectionViewCell
cell.myImage.image = UIImage(named: imageArray[indexPath.row])
cell.myImage.layer.cornerRadius = 12.0
cell.myImage.clipsToBounds = true
return cell
}
//delete item at current item - 2
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
if indexPath.row > 2 {
myCollectionView.deleteItems(at: [])
}
}
Hope this will help and feel free to ask in the comments if you have a question.
Edit: Paging is enabled, and it is horizontal scrolling, and each image takes up the whole cell.

Answer 1

How about keeping an array of tapped on image indices?
Define a variable for the indexes at the top:
var selected = [IndexPath]()
Then implement didSelectItemAt as:
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
selected.append(indexPath)
if selected.count > 2 {
let ndx = selecte.count - 3
let twoBack = selected[ndx]
myCollectionView.deleteItems(at:[twoBack])
}
}
The above would work fine for the first selection, but at that point, you would need to figure out how you handle the next selection - whether you wipe the selected array and start over, or need to keep track of further selections to handle the next input.
Depending on how you want to proceed, the selected array would either need to be wiped or to be modified to remove the item that was deleted.