November 2013
Intermediate to advanced
576 pages
19h 3m
English
book
iOS Components and Frameworks: Understanding the Advanced Features of the iOS SDK
by Kyle Richter, Joe Keeley
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Collection View Change Animations
Collection views offer support for animations when items are being inserted or deleted. This animation is not demonstrated in the sample app, but can be covered with some discussion. To build support for animating insertions and deletions, there are a few methods in the collection view layout subclass to implement. First is the prepareForCollectionViewUpdates: method, which can be used for any preparation needed before animations occur. That method receives an array of updates that can be inspected so that the method can be customized to perform preparations by individual items and by type of update.
For insertions, the initialLayoutAttributesForAppearingItemAtIndexPath: method can be implemented. This method ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.