Actually on the G1 running 1.5, the GPS icon doesn't remove itself
from the notifications bar if the phone goes into sleep mode while you
have a listener registered (even though I'm deregistering onPause()).
Example:
1) on app start, register listener for gps.
2) onPause() to home screen, log shows listener deregistered, icon
disappears.
3) bring app to foreground again, gps listener is registered, icon is
showing.
4) let phone fall asleep with your activity in the foreground
5) onPause() is still called, deregistering listener, log shows
deregister event.
5) hit the menu key to wake the phone (but not completely awake yet)
7) gps icon is still in status bar.
I'm not sure if gps is actually running in this state, or it's just
stuck on the titlebar. I'm hoping it's just stuck on the titlebar when
falling asleep...
Thanks
On Dec 5, 12:25 am, Alex <acni...@gmail.com> wrote:
> This same code works fine on a G1 (1.5/1.6), Magic, Droid, Cliq,
> Samsung Behold and Moment. I was previously using a 10 minute update
> interval.
>
> I think it was the firmware update Sprint/HTC applied recently. While
> it fixed many of the gigantic bugs with the Hero, it introduced this
> one.
>
> I confirmed it with this test code:
>
> public class GPSBugActivity extends Activity implements
> LocationListener
> {
> private static final int MIN_TIME = 60000; // 1 minute
> private static final int MIN_DISTANCE = 1000; // 1 kilometer
>
> private LocationManager locationManager = null;
>
> @Override
> public void onCreate(Bundle savedInstanceState)
> {
> super.onCreate(savedInstanceState);
> setContentView(R.layout.main);
>
> locationManager = (LocationManager) getSystemService
> (Context.LOCATION_SERVICE);
>
> locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
> MIN_TIME, MIN_DISTANCE, this);
> }
>
> @Override
> protected void onDestroy()
> {
> super.onDestroy();
>
> locationManager.removeUpdates(this);
> }
>
> @Override
> public void onLocationChanged(Location arg0)
> {
> }
>
> @Override
> public void onProviderDisabled(String arg0)
> {
> }
>
> @Override
> public void onProviderEnabled(String arg0)
> {
> }
>
> @Override
> public void onStatusChanged(String arg0, int arg1, Bundle arg2)
> {
> }
>
> }
>
> The log had the fact that it was removing the listener...but it
> doesn't seem to matter...
>
> 12-05 00:20:46.008: DEBUG/LocationManager(1941): removeUpdates:
> listener = com.gpsbug.gpsbugactiv...@4348f94012-05 00:20:50.201: DEBUG/
> LocationManagerService(70): CdmaPollingThread exiting
>
> I'm still not sure if it's actually running theGPSor just flashing
> the icon, but either way it looks bad to the end user.
>
> -Alex
>
> On Dec 5, 12:04 am, Mark Wyszomierski <mar...@gmail.com> wrote:
>
> > Alex, have you tried a simple test of just registering, then
> > deregistering the listeners in an otherwise empty project? On my
> > G1/1.5, I don't get this behavior, theGPSicon goes away shortly
> > after a deregister. If it's a quirk on that device, that is worrisome.
> > In that case, many apps will burn out the user's battery?
>
> > Mark
>
> > On Dec 4, 11:57 pm, Alex <acni...@gmail.com> wrote:
>
> > > I can confirm that an update interval of greater than 35 seconds
> > > causes theGPSstatus icon to blink on an Sprint HTC Hero (Firmware
> > > 1.56.651.2). It does not ever go away, it will blink all day long.
> > > You can run and exit Google Maps and it goes away.
>
> > > So now I get to decide whether to have this "bug" or run my location
> > > listeners at a much faster rate than I normally would.
>
> > > From the docs for requestLocationUpdates:
> > > Background services should be careful about setting a sufficiently
> > > high minTime so that the device doesn't consume too much power by
> > > keeping theGPSor wireless radios on all the time. In particular,
> > > values under 60000ms are not recommended.
>
> > > -Alex
>
> > > On Dec 2, 7:54 pm, Ken H <hunt1...@gmail.com> wrote:
>
> > > > 1 minute seems long to me too, 5-10 sec is a good generic interval if
> > > > you just want it to turn off quicker. Also remember that theGPSneeds
> > > > a time *and* distance update interval.
>
> > > > But my question is this, have you sat down and watched to see if the
> > > > little satellite dish disappears after a minute? My guess is it
> > > > should. Also remember your app is usually just suspended when you
> > > > first turn it off (so it can be booted up quicker). If android needs
> > > > the memory it will kill it.
>
> > > > Ken
>
> > > > On Dec 2, 11:24 am, Mark Wyszomierski <mar...@gmail.com> wrote:
>
> > > > > I've been working with the location providers lately, I haven't seen
> > > > > this behavior. When I deregister my listeners, theGPSicon goes away,
> > > > > I haven't seen it stick around.
>
> > > > > Even one minute intervals forGPSseems like a lot for me - I'm
> > > > > guessing users won't be able to move fast enough in one minute to make
> > > > > any real difference in location. All depends on the app though.
>
> > > > > On Nov 19, 6:33 pm, jtoolsdev <brianjto...@gmail.com> wrote:
>
> > > > > > I'm looking to a solution using the MyLocationOverlay library where
> > > > > > one can use runOnFirstFix which can launch the thread (which I
> > > > > > already
> > > > > > have) when the current location is found. Once it is found I can
> > > > > > shut
> > > > > > down the location stuff as I only need it at the start of the
> > > > > > program.
>
> > > > > > On Nov 19, 3:20 pm, Nathan <nathan.d.mel...@gmail.com> wrote:
>
> > > > > > > On Nov 19, 12:09 pm, jtoolsdev <brianjto...@gmail.com> wrote:
>
> > > > > > > > The recommendation of
> > > > > > > > the SDK is for setting up the location listener is to set time
> > > > > > > > at
> > > > > > > > 60000ms or 1 minute.
>
> > > > > > > Really? Does Google Maps follow that guideline?
>
> > > > > > > > My tests show if you use that number when
> > > > > > > > exiting the app it may not shutdownGPS.
>
> > > > > > > Sounds bad.I hope there is an answer for that.
>
> > > > > > > Nathan
>
>
--
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
