[ANMA-6194] set location to the last position known when with on GPS …

…location

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/widgets/MyLocationView.java

@@ -500,6 +500,13 @@ private void toggleGps(boolean enableGps, boolean isCustomLocationSource) {
         }
       }
 
+      // Set an initial location if one available
+      Location lastLocation = locationSource.getLastLocation();
+
+      if (lastLocation != null) {
+        setLocation(lastLocation);
+      }
+
       if (userLocationListener == null) {
         userLocationListener = new GpsLocationListener(this, locationSource);
       }