Fused Location Provider setsmallestDisplacement doesn't work in Android

Question

Hi I have implemented Fused Location provider Api for getting location updates in a service. I was able to get the onlocationchanged event fired according to the interval se

Answer 1

If the Displacement is set for LocationRequest, no chance of getting the locations if device is still as Displacement takes precedence over Intervals (interval and fastestInterval). As I could guess - May be you have passed different LocationRequest object (with no displacement set) to LocationServices.FusedLocationApi.requestLocationUpdates().

I was looking for an answer to how locs are received if both interval and displacement set. I just verified for myself with my application and below is the behavior for different configuration for LocationRequest:

1. No Displacement parameter set
   setInterval is set to 1 min and fastest to 1 min.

   I received location every one mins. But you see sometimes it received fast and sometimes slower which is because setInterval is inexact.

06-03 11:46:55.408 25776-25776/ MyLocationListener﹕ onLocationChanged.
06-03 11:47:56.008 25776-25776/MyLocationListener﹕ onLocationChanged.
06-03 11:48:18.768 25776-25776/MyLocationListener﹕ onLocationChanged.
06-03 11:49:22.938 25776-25776/MyLocationListener﹕ onLocationChanged.
06-03 11:50:22.948 25776-25776/MyLocationListener﹕ onLocationChanged.
06-03 11:52:22.978 25776-25776/MyLocationListener﹕ onLocationChanged.
06-03 11:53:22.998 25776-25776/MyLocationListener﹕ onLocationChanged.

2. Displacement parameter is set to 10 meters
   setInterval as above 1 mins.

   No location updates are received if the device does not move or cross that distance. Between every onLocationChanged below I walked more than 10 meters so I received loc.

06-03 11:26:53.328 16709-16709/MyLocationListener﹕ onLocationChanged.
06-03 11:35:38.318 16709-16709/MyLocationListener﹕ onLocationChanged.
06-03 11:39:16.728 16709-16709/MyLocationListener﹕ onLocationChanged.