Using the AGPS (wifi rather than Sat) will speed up the process a lot but
less accurate. In most cases if going off a home wifi it is pretty accurate
for me. I also notice if the user is OUTSIDE and the phone is not in the
pocket the speed for SAT is pretty good (expect on my 1st gen droid and some
other offshoots of the Moto Droid) 

 

You could grab the AGPS location during a splash screen and query the
accuracy. If it is over X amount ( X being what you determine for meters)
then you can call up the SAT service for the user.

 

From: android-developers@googlegroups.com
[mailto:android-developers@googlegroups.com] On Behalf Of dashman
Sent: Saturday, March 09, 2013 8:10 PM
To: android-developers@googlegroups.com
Subject: Re: [android-developers] improving gps lock time

 


ok - maybe there's other methods.

i've seen apps decrease lock time by contacting NTP servers.

Also apparently assisted gps helps - assisted gps just gets a
wifi geo location - and just using that helps.

i have a geo location also.

i'm sure gps lock speeds can be decreased if you have an
approx geo location...and maybe the precise time - i.e. know
the sat positions etc.

but maybe there's no public api for this - internally looks like
android uses AGPS to speed up lock.
> 

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