CODEWITHSUNDEEP
javaandroid
AndroidCoder
AndroidCoder

Reputation: 31

LocationServices.FusedLocationApi.requestLocationUpdates not setting location

I am trying to get real-time location updates using the GoogleAPIClient. While GoogleAPIClient is connected but the location object is null and it complains that location.getProvider() is null. Can someone please help?

This is my code :

public void onConnected(Bundle connectionHint) {
    Log.i(TAG, "Connected to GoogleApiClient " + myGoogleApiClient.isConnected());

    myCurrentLocation = LocationServices.FusedLocationApi.getLastLocation(myGoogleApiClient);
    // Debug - At this point myCurrentLocation  is NULL
        if (myCurrentLocation == null) {
            Log.i(TAG, "myCurrentLocation is : " + myCurrentLocation);
            // Debug - myCurrentLocation  is STILL NULL
            LocationServices.FusedLocationApi.requestLocationUpdates(
                    myGoogleApiClient, myLocationRequest, this);
            // Debug - app crashes with stack trace below at this point
            Log.i(TAG, "Doesnt't reach here : " + myCurrentLocation);
        }

        myLastUpdateTime = DateFormat.getTimeInstance().format(new Date());
        updateUILayout();

}

    protected synchronized void buildGoogleApiClient() {
    Log.i(TAG, "Building GoogleApiClient");
    myGoogleApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .addApi(LocationServices.API)
            .build();
    Log.i(TAG, "myGoogleApiClient is :" + myGoogleApiClient.isConnected());
    createLocationRequest();
}

protected void createLocationRequest() {
    myLocationRequest = new LocationRequest();
    myLocationRequest.setInterval(10000);
    myLocationRequest.setFastestInterval(5000);
    myLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
}

The main problem after debugging I found was with:

 LocationServices.FusedLocationApi.requestLocationUpdates(
                    myGoogleApiClient, myLocationRequest, this);

This is not setting myCurrentLocation. It's always NULL. And in the ADB logcat says:

java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.location.Location.getProvider()' on a null object reference
        at com.adrenalin.myfirstapp.MyActivity.onConnected(MyActivity.java:130)
        at com.google.android.gms.internal.jm.f(Unknown Source)
        at com.google.android.gms.common.api.c.gJ(Unknown Source)
        at com.google.android.gms.common.api.c.d(Unknown Source)
        at com.google.android.gms.common.api.c$2.onConnected(Unknown Source)
        at com.google.android.gms.internal.jm.f(Unknown Source)
        at com.google.android.gms.internal.jm.dU(Unknown Source)
        at com.google.android.gms.internal.jl$h.b(Unknown Source)

Upvotes: 1

Views: 9574

Answers (3)

pat
pat

Reputation: 11

In my case I'm using a fragment class, is there any workaround for using this on LocationServices.FusedLocationApi.requestLocationUpdates()? 

  @Override
    public void onLocationChanged(Location location) {
        mLastLocation = location;
        displayLocation();
    }

    private void startLocationUpdates() {
        if(ActivityCompat.checkSelfPermission( getActivity().getApplicationContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
                ActivityCompat.checkSelfPermission( getActivity().getApplicationContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED     )
        {
            return;
        }

        LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient,mLastLocation,this);
    }

Upvotes: 1

Gaurav
Gaurav

Reputation: 491

Use following method if you are getting Null localion

if (myCurrentLocation == null) { 
   LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
} else {
    //your location code here...
}

And override following method for retrying for location

@Override
public void onLocationChanged(Location location) {
   //your location code here...
}

Upvotes: 0

RonnyKnoxville
RonnyKnoxville

Reputation: 6394

When you are implementing 

LocationServices.FusedLocationApi.requestLocationUpdates(
                    myGoogleApiClient, myLocationRequest, this);

you need to override the callback for onLocationChanged so that it knows what to do with the location as it updates.

Try this:

@Override
public void onLocationChanged(Location location) {
    myCurrentLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
}

Upvotes: 1

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