November 2025
Beginner
634 pages
12h 20m
English
Content preview from iOS 26 Programming for Beginners - Tenth Edition
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In the previous chapter, you modified the Add New Journal Entry screen so that the user can add their current location to a new journal entry, and configured the Map screen to display a region centered on your current location, as well as pins representing the locations where the journal entries are made. However, since the MapViewController instance does not have access to the journalEntries array in the JournalListViewcontroller instance, newly added journal entries do not appear on the Map screen as pins. Also, all newly added journal entries are lost when you quit the app.
In this chapter, you will create a singleton, SharedData, that will provide journal entry data to both the Journal List and Map screens. This class will ...
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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.
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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.