how to make dynamic width of the UICollectionViewCell

Question

I want to set the width of UICollectionViewCell dynamically. I found some code in swift and I want the code in Objective-C.

let flowLayout = col         


        

Answer 1

set cell's width to a percentage of the container view like:

cell.frame = CGRectMake(x, y, self.view.frame.size.width * 20 / 100, height);

or you can use CollectionView Delegates

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    return CGSizeMake(self.view.frame.size.width*20/100, 192.f);
}