Parallax, initialOrigin and headerOverlayAlpha are custom properties you’ll use later in the implementation of stretchy and sticky effects. It inherits the default attributes such as frame, transform, transform3D, alpha and zIndex from the superclass. This class stores all the information the collection view needs to configure an element before displaying it. The CustomLayoutAttributes.swift file implements a UICollectionViewLayoutAttributes subclass named CustomLayoutAttributes. The second group defines the layout behaviors, and the third sets up the layout spacings. The first group of settings deals with collection view’s elements sizes. The Custom Layout folder deserves special attention because it contains two important files:ĬustomLayoutSettings.swift implements a structure with all the layout settings. For convenience’s sake, the Xcode project embeds all the necessary assets. MockDataManager.swift file holds the data structures for all the teams. Both the HeaderView and MenuView classes are subclasses of UICollectionReusableView. They link to their respective views designed in the Main.storyboard file.īesides that, there are the custom supplementary views the CustomLayout requires. In the Reusable Views folder, there are subclasses of UICollectionViewCell for the cells, and UICollectionReusableView for section header and section footer views. It’s a protocol to let the collection view switch its data source. The JungleCupCollectionViewController adopts MenuViewDelegate too. It implements all the required methods plus the optional method for adding supplementary views. Inside JungleCupCollectionViewController.swift file you’ll find the implementation of a UICollectionViewController subclass conforming to the UICollectionDataSource protocol. Let’s have a closer look at the starter project: Section headers show their roles in the team while footers display their collective strength. The app presents the Owls Team’s players who are taking part in the Jungle Soccer Cup 2017. You’ll see some cute owls laid out in a standard UICollectionView with sections headers and footers like the following: UICollectionView Custom Layout Tutorial: PinterestĪt the end of this UICollectionViewLayout tutorial you’ll be able to implement a UICollectionView like the following:Īre you ready to win the Jungle Cup? Let’s go! Getting Startedĭownload the starter project for this tutorial and open it in Xcode.UICollectionView Tutorial: Reusable Views and Cell Selection.UICollectionView Tutorial: Getting Started.…or, you can check out some of the excellent tutorials on the site! If you’re unfamiliar with any of these topics, you could read the Apple official documentation… Note: This UICollectionViewLayout tutorial requires an intermediate knowledge of Swift 4.0, an advanced knowledge of UICollectionView, affine transforms and a clear understanding of how the core layout process works in the UICollectionViewLayout class.
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