I have a question about the addProximityAlert method in
If one invokes the method does it later send the intents on an
INTERRUPT basis (e.g. when it enters the proximity radius) OR does it
POLL at specific intervals to see if the device is in the radius. E.g.
is it interrupt or poll based.
If it is poll based what is the interval. Furthermore (it is not
clear in the documentation but is in fact the polling interval being
set for addProximityAlert by requestUpdates. If this is the case it
should NOT be possible to invoke addProximityAlert without invoking
requestUpdates first. However, the documentation does not seem to
suggest any such constraint).
Another important question is about the device being turned OFF. How
does one make sure the previous invocation of addProximityAlert (e.g.
before the power down) is remembered basically forever (e.g. until the
user explicitly says otherwise).