On 04/01/16 16:20, Thomas Voß wrote:
Now that is quite difficult, waking up the device from deep sleep just
to maintain a cache is*very* expensive in terms of battery,
specifically as choosing a sensible timeout is almost impossible.
maybe update the cached location every time the screen comes on, if the
cache is older than 5 minutes or so. That way if the screen is off for
hours it will stay in low power, but if you turn on the screen it will
start figuring out where it is if the cache is old enough that you might
have moved a significant distance. This way it only does GPS when the
device is active and screen on anyway, and by the time the user has got
to the relevant screen that wants their location it will probably be
ready to provide it.
Alan.
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