April 2020
Beginner
316 pages
8h 20m
English
Content preview from Learn SwiftUI
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States and updating the UI
We'll touch on States in a later chapter but, as a general overview, if you assign @State to a property, SwiftUI will monitor this property and, if it is mutated or changed, will invalidate the current layout and reload.
Think of it in terms of a collection of data in a list. The data changes and the list is automatically updated and refreshed—no need to invoke a refresh call (or a reloadData(), as you might have previously seen in CollectionViews and TableViews).
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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.