Swift collectionView select cell multiple selection

Question

I have a UICollectionView with 2 sections. I want to select the cell when the user taps on it.

My code runs correctly every time a user taps on the cell, the cell become smaller and a checkmark appears in it ( it's the imageView I add as subview of the cell). The problem is that if I tap a cell on the first section, it selects another cell in the second section. This is weird as I use the indexPath.

This is my code:

func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
    // handle tap events            

    let cell = collectionView.cellForItemAtIndexPath(indexPath)
    let centerCell = cell?.center

    if cell!.frame.size.width == cellWidth {
        cell?.frame.size.width = (cell?.frame.size.width)!/1.12
        cell?.frame.size.height = (cell?.frame.size.height)!/1.12
        cell?.center = centerCell!

        let imageView = UIImageView()
        imageView.image = MaterialIcon.check?.imageWithColor(MaterialColor.white)
        imageView.backgroundColor = MaterialColor.blue.accent2
        imageView.frame = CGRectMake(1, 1, 20, 20)
        imageView.layer.cornerRadius = imageView.frame.height/2
        imageView.clipsToBounds = true
        if indexPath.section == 0 {
            imageView.tag = indexPath.row+4000
        } else {
            imageView.tag = indexPath.row+5000
        }
        print("IMAGEVIEW TAG: ",imageView.tag)
        cell?.addSubview(imageView)                
    }
}

score 8 · Answer 1 · edited May 25 '16 at 05:17

8

Be sure to have the multiple selection property on collectionView set to true in your viewDidLoad() or in storyboard

 collectionView?.allowsMultipleSelection = true

edited May 25 '16 at 05:17

Andriy

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answered May 08 '16 at 10:35

Cjay

1,093
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yes, it's not that the problem... the problem is that other cells will select – MarcoCarnevali May 08 '16 at 15:38

Swift collectionView select cell multiple selection

1 Answers1