Ringtone or alert message wenn I'm close to a annotation "POI" point.

Hello can anyone help me with some code examples. I have a mapView with a couple of annotation "POI" point's and addRoute. What I want is that wenn I'm close to a annotation "POI" point, that my iPhone or Android phone give me a signal or a alert message that I'm in a range for example 10 meter from the annotation "POI" point are. Maybe somebody else have the some problem and can give me a direction on this Q/A forum.

I think you'll have to monitor the location event listener and calculate the distance between the POI coordinates and the user's current position.

Hi Henri, you should calculate the distance in meter first between current location and POI location then check range if its within your criteria then play ringtone or alert