I am now trying to figure out how to enhance this App so that when MyLocation is in the proximity of the select Address, the phone will buzz to alert me - like a wake me up application for travelling by bus/train. How do I get started to do this? Do I use the LocationSensor.1 block with an embedded Logic block - or something else? Appreciate someone pointing me. Thanks in advance.
Also, out of the several books out there, any recommendations?
Alternatively, calculate the distance from your current location constantly (perhaps using a Clock); when the distance is small (perhaps 10 meters or so) you determine you have arrived. There are several way to calculate distance between two points; use a Blocks algorithm or use the built-in method in the Maps/MapMarker components. These methods are described here>Calculer la distance entre son domicile et un point donnée dans une textbox .
If you check your CurrentAddress to exactly match a coded address (in a Text box or in a List selected from a ListPicker) your app will almost certainly never warn you that you have arrived because the two 'addresses' will almost never match exactly.