CODEWITHSUNDEEP
androidlocation
Eugene
Eugene

Reputation: 656

requestLocationUpdates for provider and for criteria

Please tell me one thing

Here are two variation of requesting location updates

Criteria mFineCriteria = new Criteria();
mFineCriteria.setAccuracy(Criteria.ACCURACY_FINE);
mFineCriteria.setHorizontalAccuracy(Criteria.ACCURACY_HIGH);        
mFineCriteria.setBearingAccuracy(Criteria.ACCURACY_HIGH);
mFineCriteria.setBearingRequired(true);

if I do

String provider = mLocationManager.getBestProvider(mFineCriteria, true);
mLocationManager.requestLocationUpdates(provider, 1000, 1, mLocationListener, null);

Then my GPS starts and everything is ok. But if I just request updates with this criteria,

mLocationManager.requestLocationUpdates(1000, 1, mFineCriteria, mLocationListener, null);

then I'm get results from fused location provider and gps doesn't work.

EDIT

Please tell, why requesLocationUpdates doesn't use GPS if it is a best available provider for the same criteria

Upvotes: 3

Views: 2653

Answers (2)

tim4dev
tim4dev

Reputation: 2987

I think that you can get information about which provider was selected

String provider = locationManager.getBestProvider(criteria, false);
Log.i(TAG, "AllProviders = " + locationManager.getAllProviders().toString());
Log.i(TAG, "Provider [" + provider + "] best criteria.");

Monitor:

AllProviders = [passive, gps, network]
Provider [gps] best criteria.

See also https://stackoverflow.com/a/23425606/345810

Upvotes: 0

msysmilu
msysmilu

Reputation: 2024

Just looking in the same problem somewhat, and this might explain it for you:

public String LocationManager.getBestProvider (Criteria criteria, boolean enabledOnly)

Added in API level 1 Returns the name of the provider that best meets the given criteria. Only providers that are permitted to be accessed by the calling activity will be returned. If several providers meet the criteria, the one with the best accuracy is returned. If no provider meets the criteria, the criteria are loosened in the following sequence:

  • power
  • requirement
  • accuracy
  • bearing
  • speed
  • altitude

Note that the requirement on monetary cost is not removed in this process.

Upvotes: 1

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