Time for action – showing the user's location on the map

This example is available for download or browse at https://github.com/myleftboot/Chapter-7-maps/tree/CurrentLocation. Perform the following steps to show the user's location on the map:

1. As we will be asking for the user's location, we need to add the following code to check that we are allowed to do this:

   function isLocationAuthorized(_args) {
       //check that we are allowed to use
       var retVal = true;
       if (!Ti.Geolocation.locationServicesEnabled) return false;
       
       if (Ti.Platform.name === 'iPhone OS') {
         // Explain to the user why we are going to use the location services.
       
         Ti.Geolocation.purpose = _args.purpose;
         var authorization = Titanium.Geolocation.locationServicesAuthorization;
         
         if (authorization == Titanium.Geolocation.AUTHORIZATION_DENIED) {
           // user has decided to not allow this use of location
           retVal = false;
         }
         else if (authorization == Titanium.Geolocation...