How can I customize the selection state of my UICollectionViewCell subclass?

Question

Created Jan ’23

Replies 2

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Hello everyone,

I have a question about collection view. I want to add selection animation like when I press cell, background should change color to gray in my custom collection view cell. I tried some solutions but I couldn't achieve that. I override of isSelected function, when I clicked the cell background, it change him color but when I pull my finger, it still waiting same background color. The thing I want that is when I pull my finger on to cell, background should be look like old version. What kind of solutions I should try it for this thing, I checked internet but I could not find right solution for me.

Thank you

Answer 1

Claude31 OP

Jan ’23

when I press cell, background should change color to gray

Just do this:

    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        let cell = collectionView.cellForItem(at: indexPath)
        cell?.backgroundColor = .gray

.

when I pull my finger on to cell, background should be look like old version.

Could you explain more clearly what you mean?

Answer 2

Claude31 OP

Jan ’23

If you want color to change when you touch, before you release, you have to do it with a touchGesture recogniser:

https://stackoverflow.com/questions/15628133/uitapgesturerecognizer-make-it-work-on-touch-down-not-touch-up/15629234#15629234

Then in didSelect, you confirm the color as described before