Subscribe to xamarin map/Geolocator event when the user's current location changes

Question

I'm creating a xamarin app using xamarin.forms.maps and wanted to know if there is a way to subscribe to an event that tells me when the user's current location changes. I can get the user's current location via the geolocator plugin but I want an event-driven way to update the current location when the user moves since I want to save the user's current location to a DB when they move x meters. I've searched high and low and was not able to find what I'm really looking for. Any help would be appreciated.

Answer 1

There are plenty of samples available in the official documentation.

As for instance, you can subscribe to location updates in Xamarin.Android by subscribing to FusedLocationProviderClient.RequestLocationUpdatesAsync as read here . You can also use the LocationService , but as mentioned in the documentation , this service is both an older API and is best used for devices which do not have Google Play Services installed.

You can find a sample of using the FusedLocationProviderClient here and another sample using the LocationService here .

For iOS, you can subscribe to the CLLocationManager.LocationsUpdated event as described here . You can find a sample of this here .

You can then, as for instance, create your own, ILocationManager which is implemented platform specifically to listen for location updates in your PCL project.

Answer 2

To anyone who might come across this,

Geolocator has an event called PositionChanged that can be subscribed to in the PCL. Sadly enough it was easy to find when I was looking at the code.