locationManager:didEnterRegion not called when a beacon is detected

Question

While testing with beacons (iOS devices) I found the listener beacon giving some unexpected behavior. locationManager:didEnterRegion method is not getting c

Answer 1

It's hard to say if I have seen the exact same thing without more specifics about the starting conditions of your test. But, yes, in some specific cases, I have seen locationManager:didRangeBeacons:inRegion get called even without getting a call to locationManager:didEnterRegion.

If you start ranging and monitoring at the same time with the same region, and iOS thinks you were already in the monitored region, then you may not get a call to locationManager:didEnterRegion.

To truly test if something is amiss, you need to set up a test case where you:

1. Make sure you are not in the region.
2. Let iOS run for several minutes
3. Start monitoring that region
4. Let iOS continue to run for a few minutes
5. Enter the region.
6. See if you get a call to locationManager:didEnterRegion

If you still don't get a call after going through the above, then something is definitely wrong.