How do I get a background location update every n minutes in my iOS application?

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I found a solution to implement this with the help of the Apple Developer Forums:

  • Specify location background mode
  • Create an NSTimer in the background with UIApplication:beginBackgroundTaskWithExpirationHandler:
  • When n is smaller than UIApplication:backgroundTimeRemaining it will work just fine. When n is larger, the location manager should be enabled (and disabled) again before there is no time remaining to avoid the background task being killed.

This works because location is one of the three allowed types of background execution.

Note: I lost some time by testing this in the simulator where it doesn’t work. However, it works fine on my phone.

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