April 2020
Intermediate to advanced
528 pages
15h 40m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide, 7th Edition
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Displaying the Grid
Let’s tackle the interface first. You are going to change the UI for PhotosViewController to display a collection view instead of displaying the image view.
Open Main.storyboard and locate the Photorama scene. You want to delete both the image view and the background view. To do this, select the background view in the document outline and press Delete. Now, drag a Collection View onto the canvas.
Because it is the rear-most view, the collection view will be pinned to the top of the entire view instead of to the top of the safe area. This is useful for scroll views (and their subclasses, like UITableView and UICollectionView) so that the content will scroll underneath the navigation bar. The scroll view will ...
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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.