- Non-running - The app is not running.
- Inactive - The app is running in the foreground, but not receiving events. An iOS app can be placed into an inactive state, for example, when a call or SMS message is received.
- Active - The app is running in the foreground, and receiving events.
- Background - The app is running in the background, and executing code.
- Suspended - The app is in the background, but no code is being executed.
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In the context of an NSOperation object, which runs in an NSOperationQueue, the terms concurrent and non-concurrent do not necessarily refe...
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Retain counts are the way in which memory is managed in Objective-C. When you create an object, it has a retain count of 1. When you send a... -
Migrating Away from Threads The idea is that you eliminate work on your part, since the paradigm fits MOST code more easily. It reduces ...