I suggest you better implement a location listener, which is much more
light-weight than the busy polling you are implementing. You can cancel your
subscription to location updates once you have one that satisfies you.Ludwig
2009/2/1 Anna PS <annapowellsm...@googlemail.com>
>
> Great - thank you. I'll remember to read the documentation next
> time :)
>
> I've pasted my code below in case anyone wants to borrow it: it keeps
> polling for up-to-date and accurate GPS data, up to a maximum of 10
> seconds. If by then the GPS data is old or not accurate enough, it
> just returns false.
>
> The code feels a bit dubious, but it seems to do the job.
>
> Anna
>
> long locationTime = location.getTime();
> long currentTime = System.currentTimeMillis();
> timeDifference = (currentTime - locationTime) /
> 1000;
>
> float accuracy = location.getAccuracy();
> int count = 0;
>
> // Wait for accurate GPS data, up to a maximum of 10
> seconds before
> // throwing an error
> while (((timeDifference > 10) || (accuracy > 20.0))
> && (count <
> 20)) {
> location =
> locationmanager.getLastKnownLocation("gps");
> locationTime = location.getTime();
> currentTime = System.currentTimeMillis();
> timeDifference = (currentTime -
> locationTime) / 1000;
> accuracy = location.getAccuracy();
> Log.d(LOG_TAG, "getting up to date GPS data,
> time diff = "
> + timeDifference + " &
> accuracy = " + accuracy
> + " & count = " + count);
> try {
> Thread.currentThread();
> Thread.sleep(500);
> } catch (InterruptedException ie) {
> }
> count++;
> }
> // No accurate GPS data? Exit here and warn the user
> if ((timeDifference > 10) || (accuracy > 20.0)) {
> return false;
> }
>
> On 27 Jan, 03:38, gjs <garyjamessi...@gmail.com> wrote:
> > Hi,
> >
> > Subtract the Location.getTime() value from the current time to get the
> > age of the last fix.
> >
> > Seehttp://
> code.google.com/android/reference/android/location/Location.html
> >
> > Regards
> >
> > On Jan 23, 10:07 am, Anna PS <annapowellsm...@googlemail.com> wrote:
> >
> > > Hi
> >
> > > When you get GPS location using getLastKnownLocation, is there a way
> > > to check how old the data is, i.e. when the location was last
> > > updated?
> >
> > > I'm noticing that sometimes my app is giving me an out-of-date
> > > location (usually because the sky is not visible when the app starts)
> > > - it'd be good to warn the user about this.
> >
> > > It's possible to check the age of the data on the iPhone I believe, is
> > > it possible in Android?
> >
> > > thanks!
> > > Anna
> >
>
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