Scene States and Transitions
On iPhone, there is only ever one scene – one instance of your application’s UI. But on iPad, users may have multiple scenes, and they might be visible simultaneously. Figure 13.4 shows three instances of Safari visible onscreen.
Figure 13.4 Three instances of Safari
Scenes can be created and destroyed as a user opens and closes windows, so you should think about the lifecycle of a scene in addition to the lifecycle of the application as a whole. For example, one scene can go into the background while another scene remains in the foreground.
In LootLogger, the items will be archived when ...
Get iOS Programming: The Big Nerd Ranch Guide, 7th Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.