Expanding a cell taking time

[tapan-nathvani]

in this method
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:
(NSIndexPath *)indexPath {
if (self.exposedItemIndexPath && indexPath.item == self.exposedItemIndexPath.item) {
self.exposedItemIndexPath = nil;
}
else {
NSLog(@"Hello1");
self.exposedItemIndexPath = indexPath;
NSLog(@"Hello2");
}

when i am assigning exposedItemIndexPath its taking almost 5 to 6 seconds to expand a cell.

Can you please help me to improve this ?

[gleue]

Having around 100 cards in the sample app makes selecting/deselecting noticeably slower. Recomputing the layout transitions takes its time.

How many cells do you have?

[tapan-nathvani]

I have almost 78 cards and it will increase.

[gleue]

Hm, that could be a problem.

When switching layouts UIKit creates animations for all cards from one to the other layout. That would mean 78+ animations in parallel.

Could you try switching layouts w/o animations. Just to get an idea?

[tapan-nathvani]

Yes i tried by Passing NO to animation.. But it still taking time.

In this method of TGLStackedViewController Class

• (void)setExposedItemIndexPath:(nullable NSIndexPath *)exposedItemIndexPath {

  [self setExposedItemIndexPath:exposedItemIndexPath animated:NO];
  }

is there any solution to make it fast ?

[gleue]

You could use instruments to see where the lag is introduced

[tapan-nathvani]

OKies. Will check it and let you know.