android gps cover long area
<p>i'm using gps and i add some over lay points in the map so i want when my current location is ==  the over lay item remove the item ! the problem is the gps inaccuracy  and i may be in place near  the overlay item but not same longitude and lat. so i want to add area around the overlay item say a delta so the question is what the delta suppose to be for sure its cant be int or float what it should be to add it to my over lay item lang and latitude .
Thank in advance </p>
