Do NOT put an infinite loop on the main thread. EVER. You while loop
should be executed on a background thread. Something like this:
Thread t = new Thread(new Runnable() {
public void run() {
// the loop
}
});
t.start();
On Wed, Mar 4, 2009 at 8:39 AM, denzel <dimitri.deroc...@gmail.com> wrote:
>
> Hi,
>
> Take a look at the following code:
>
> The first class is a locationmanager which holds the current and
> previous location:
>
> public class MyLocationManager implements LocationListener {
> private Location previousLocation;
> private Location currentLocation;
>
> private LocationManager locationManager;
>
> public MyLocationManager (Activity activity) {
> this.locationManager = (LocationManager)
> activity.getSystemService(Context.LOCATION_SERVICE);
> this.locationManager.requestLocationUpdates
> (LocationManager.GPS_PROVIDER, 0, 0, this);
> }
>
> @Override
> public void onLocationChanged(Location location) {
> this.lastLocation = location;
> Log.v("LocationManager", "Lat: " + location.getLatitude() + " -
> Lon: " + location.getLongitude());
> }
>
> @Override
> public void onProviderDisabled(String provider) {}
>
> @Override
> public void onProviderEnabled(String provider) {}
>
> @Override
> public void onStatusChanged(String provider, int status, Bundle
> extras) {}
>
> }
>
> Th second class is the main activity which acts like a server and uses
> the previous location to do something:
>
> public class Example extends Activity {
> private MyLocationManager myLocationManager;
>
> @Override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
> setContentView(R.layout.main);
>
> myLocationManager = new MyLocationManager(this);
> while (true) {
> // do something (like some server functionality)
> Location loc = myLocationManager.getPreviousLocation();
> // do something
> }
> }
> }
>
> The problem is that myLocationManager doesn't retreive any updates for
> the location. I think it has to do with this while-loop that blocks
> the main-thread by continously executing. And because
> mylocationmanager is also running in the main thread, he cant't
> retrieve his location updates.
>
> Does somebody know how to deal with this? I think I have to make use
> of threads somewhere, but I don't know where exactly.
>
> Thanks in advance!
>
> kind regards,
>
> Denzel
> >
>
--
Romain Guy
Android framework engineer
romain...@android.com
Note: please don't send private questions to me, as I don't have time
to provide private support. All such questions should be posted on
public forums, where I and others can see and answer them
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