Tracking More Than 100 Simultaneous Geofences With The New Android Api

I have around 3500 geographical points of interest in an area of 9000 km^2, and I want my app to run in the background and notify the user whenever he or she is in proximity to any

Solution 1:

I'd recommend downloading all points to a sqlite db on the device. Then find the closest 99 points with something like this: SQlite Getting nearest locations (with latitude and longitude) and register those points with Android to monitor.

Then set a "significant change" geofence that you can use to monitor if the user's location has changed enough that when they exit this geofence, you should reload the closest points of interest.

Solution 2:

I think there is a limit of 100 geofences. I am not sure if this is per application or per application per user. I have not test this idea, but can you register the first 100 locations closest to your location?