uicollectionviewcell

Creating a custom UICollectionViewCell for my UICollectionViewController , it works by registering the nib; however, fails to register by class. Using registerClass() - fails Registering by class seems correct - it builds, but throws an exception at runtime unwrapping optional elements from the UIView. Without referencing outlets, it runs; however, no cells appear within the collection view. collectionView?.registerClass(MyCollectionViewCell.self, forCellWithReuseIdentifier: "myCell") Clearly the view is not loaded; however, I'd think setting the custom class of the cell would provide

I have UICollectionView with cells in the storyboard. The size of each cell is set to 145x145. They look good on the iPhone 4 - 5s, but the size doesn't increase proportionally on the iPhone 6 and 6+. Rather than manually setting a different cell size for each device, how can I do it dynamically? See examples here: iPhone 5S: http://prntscr.com/55vy7q , iPhone 6: http://prntscr.com/55vyy2 If you want your cells to adjust their width, you'll need to calculate the flow layout's itemSize based on the view width. If all your cells will be the same size , you can set the flow layout's itemSize

I have a UICollectionViewCell , with a UIButton . And I have two different actions. The first one, when the user presses the cell, it will segue to another view with didSelectITemAt ; the second one, when the users presses the UIButton inside the cell. My problem is that on Swift Code of MyCollectionViewCell , I cant perform a segue, When I write the Code: self.performSegue(withIdentifier: "toStoreFromMyDiscounts", sender: nil) it says the error: Value of Type MyCollectionViewCell has no member performSegue. I also cannot write prepareForSegue , it doesn't auto complete. How can I create a

I have a CollectionView that have one custom cell. I want to zoom in/out imageView in cell, so i add pinch gesture at CollectionView.m when i add gesture to self.collectionView, like this: [self.collectionView addGestureRecognizer:pinchGesture]; it works! my cell.imageView can zoom in/out, but when i pinch other place(not in cell's imageView, my cell.imageView still zoom in/out with the gesture, I want the cell.imageView zoom in/out just when user pinch the cell.imageView, so i try to add gesture use this code: [cell.imageView addGestureRecognizer:pinchGesture]; but unfortunately it doesn't

I have a vertical UICollectionView with each cell taking up the entire self.view.frame I can easily swipe upwards to page to the next cell, but I would like to do the same thing with the press of a button. I've tried using: - (void)setContentOffset:(CGPoint)contentOffset animated:(BOOL)animated And: - (void)scrollRectToVisible:(CGRect)rect animated:(BOOL)animated They work but they temporarily "White-Out" the currentCell to present the nextCell, while the swiping shows both cells during the transition. Ideally I would like to use: - (void)scrollToItemAtIndexPath:(NSIndexPath *)indexPath

I am trying to develop my app in Xcode 5 and debug it under iOS 7 environment. I have a customized UICollectionViewLayoutAttributes. I plan to do something after long pressing on UICollectionViewCell, so I override the method in UICollectionViewCell.m - (void)applyLayoutAttributes:(MyUICollectionViewLayoutAttributes *)layoutAttributes { [super applyLayoutAttributes:layoutAttributes]; if ([(MyUICollectionViewLayoutAttributes *)layoutAttributes isActived]) { [self startShaking]; } else { [self stopShaking]; } } In iOS 6 or below, - applyLayoutAttributes: is called after I call the statements