June 2011
Intermediate to advanced
590 pages
19h 31m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide, Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Background Processes
An application can play audio even when it’s not the active application. Let’s modify the MediaPlayer application so that it continues playing audio even when its been put in the background state.
By default, when the user presses the Home button, an application is put into the background state and then transitioned to the suspended state shortly thereafter. Audio playback cannot continue in the suspended state because no code can be executed when an application is suspended. If your application needs to continue executing code once it is no longer active, it can request to stay in the background state instead of transitioning to the suspended state.
To delay being transitioned to the suspended state, you add a key-value ...
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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.
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.