While originally I was using Objective-C, I since switched so Swift and the original accepted answer did not suffice. I ended up creating a UICollectionViewLayout subclass which provides the best (imo) experience as opposed to the other functions which alter content offset or something similar when the user has stopped scrolling. class SnappingCollectionViewLayout: UICollectionViewFlowLayout { … Read more
It sounds like what you are asking for is a way to use UICollectionView to produce a layout like UITableView. If that’s really what you want, the right way to do this is with a custom UICollectionViewLayout subclass (maybe something like SBTableLayout). On the other hand, if you’re really asking if there is a clean … Read more
Try this one it’s Working code (Swift 4). func NKPlaceholderImage(image:UIImage?, imageView:UIImageView?,imgUrl:String,compate:@escaping (UIImage?) -> Void){ if image != nil && imageView != nil { imageView!.image = image! } var urlcatch = imgUrl.replacingOccurrences(of: “https://stackoverflow.com/”, with: “#”) let documentpath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] urlcatch = documentpath + “https://stackoverflow.com/” + “\(urlcatch)” let image = UIImage(contentsOfFile:urlcatch) if image != nil … Read more
The issue is, that the cell is selected, but the UICollectionView does not know anything about it. An extra call for the UICollectionView solves the problem: [collectionView selectItemAtIndexPath:indexPath animated:NO scrollPosition:UICollectionViewScrollPositionNone]; Full code: – (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath { UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@”Cell” forIndexPath:indexPath]; cell.selected = YES; [collectionView selectItemAtIndexPath:indexPath animated:NO scrollPosition:UICollectionViewScrollPositionNone]; return cell; } … Read more
Use this method to set custom cell height width. Make sure to add this protocols UICollectionViewDelegate UICollectionViewDataSource UICollectionViewDelegateFlowLayout If you are using swift 5 or xcode 11 and later you need to set Estimate Size to none using storyboard in order to make it work properly. If you will not set that than below code … Read more
You can use the collectionView:layout:insetForSectionAtIndex: method for your UICollectionView or set the sectionInset property of the UICollectionViewFlowLayout object attached to your UICollectionView: – (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section{ return UIEdgeInsetsMake(top, left, bottom, right); } or UICollectionViewFlowLayout *aFlowLayout = [[UICollectionViewFlowLayout alloc] init]; [aFlowLayout setSectionInset:UIEdgeInsetsMake(top, left, bottom, right)]; Updated for Swift 5 func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: … Read more
I ran into the same issue just now. When using the UICollectionViewFlowLayoutDelegate method to set the cell size depending on device and device-orientation, the size would be calculated properly but subviews would not resize to fill the newly size cell. The effect was a large blank cell with small subviews that don’t fill the cell’s … Read more
Here’s an elegant, up to date solution. As stated by others, first make sure that all you have constraints running from the very top of your header view to the top of the first subview, from the bottom of the first subview to the top of the second subview, etc, and from the bottom of … Read more