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POLocationRequest in Google Play Services isn't updating for interval set as less than 1 second.
 

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  1. POLocationRequest in Google Play Services isn't updating for interval set as less than 1 second.
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    <p>I'm developing an android app in which I need to show location updates with some 30-40 updates per second. I'm using the <a href="http://developer.android.com/google/play-services/location.html" rel="nofollow">Location APIs of Google Play Services</a>, introduced in Google I/O 2013. It uses a fused location provider (making use of accelerometers and other sensors along with GPS) for more accurate &amp; efficient location tracking.</p> <p>Here's my code:</p> <pre><code>protected void startLocationTracking() { if (GooglePlayServicesUtil.isGooglePlayServicesAvailable(this)) { mLocationClient = new LocationClient(this, mConnectionCallbacks, mConnectionFailedListener); mLocationClient.connect(); } } private ConnectionCallbacks mConnectionCallbacks = new ConnectionCallbacks() { @Override public void onDisconnected() { } @Override public void onConnected(Bundle arg0) { LocationRequest locationRequest = LocationRequest.create(); locationRequest.setFastestInterval(0); locationRequest.setInterval(0).setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY); mLocationClient.requestLocationUpdates(locationRequest, mLocationListener); } }; private OnConnectionFailedListener mConnectionFailedListener = new OnConnectionFailedListener() { @Override public void onConnectionFailed(ConnectionResult arg0) { Log.e(TAG, "ConnectionFailed"); } }; private LocationListener mLocationListener = new LocationListener() { private long mLastEventTime = 0; @Override public void onLocationChanged(Location location) { double delayBtnEvents = (System.nanoTime()- mLastEventTime )/(1000000000.0); mLastEventTime = System.nanoTime(); //Sampling rate is the frequency at which updates are received String samplingRate = (new DecimalFormat("0.0000").format(1/delayBtnEvents)); float speed = (float) (location.getSpeed() * 3.6); // Converting m/s to Km/hr tv.setText(speed + " kmph" + ", " + samplingRate + " Hz"); //Updating UI } }; </code></pre> <p><strong>I have set priority as PRIORITY_HIGH_ACCURACY and the interval &amp; the fastest interval as 0 milliseconds here. But I still receive updates on every 1 second only.</strong> </p> <blockquote> <p>This pretty much looks like the update frequency of the GPS sensor of any Android phone. But I was expecting more as this is using a Fusion Sensor (which includes accelerometer). Accelerometer being part of fusion sensor should yield higher frequency than this.</p> </blockquote> <p>I have tried other values for the interval, but could not get updates for less than 1 sec interval. Also ACCESS_FINE_LOCATION is used for permission in manifest.</p> <p>Am I missing something here? Is their any other approach to accomplish this? I'll be grateful for any help to solve this.</p>
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    1. USVinayak
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    1. COI am not able to get onLocationChange method call every 1 seconds. I have set Interval and Fast Interval both to 0. But location get updates at 5 seconds only. I wan updated location every 1 seconds. Can you please kindly help as you already did this.
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    2. CO@Scorpion Did you set priority in locationRequest as PRIORITY_HIGH_ACCURACY ? You refer the above code in onConnected() callback method.
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    3. COYes, And I did the same thing described above. If you want to check my code then please refer this link. http://stackoverflow.com/questions/20372079/drawing-path-on-google-maps-using-google-maps-android-api-v2
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