问题
I have used manager.requestLocationUpdates("gps", 1800000, 1, new LocationDetector()); method of LocationManager manager = (LocationManager)getSystemService(Context.LOCATION_SERVICE); class for getting update when either location change (device's location) is at least 1 meter (almost 40 inches), OR at least 30 minutes has passed. But the update is not being received when I change device's location by 1 meter (or even more). So what can be the problem? Please tell.
Code:
public class LocationDetector implements LocationListener {
@Override
public void onLocationChanged(Location location) {
Log.d("GPS: ",location.getLatitude()+", "+location.getLongitude());
}
回答1:
It's not OR, it's AND.
To get a location update with those parameters the distance needs to change at least 1 meter AND 30 minutes needs to have passed since the previous update.
Android documentation:
The minDistance parameter can also be used to control the frequency of location updates. If it is greater than 0 then the location provider will only send your application an update when the location has changed by at least minDistance meters, AND at least minTime milliseconds have passed.
来源：https://stackoverflow.com/questions/37095377/onlocationchangedlocation-location-is-not-working-android