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Can't use LocationCallback class

I want to override onLocationAvailability()

from LocationCallback

class (com.google.android.gms.location.LocationCallback)

.

According to this doc, LocationCallback

is an abstract class.

So, I tried to expand it, but I can't, nothing shows up in Android Studio.

I tried to implement it as per this , but android studio doesn't resolve it either.

Does anyone know how I can use this class to use onLocationAvailability()

?

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2 answers


Try adding google play services to your gradle file if you haven't followed it



dependencies {
    compile 'com.google.android.gms:play-services:7.5.0'
}
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Decision:

 protected LocationCallback mLocationCallback = new LocationCallback() // Implementacja abstract class
{
    @Override
    public void onLocationAvailability(LocationAvailability locationAvailability) {
        super.onLocationAvailability(locationAvailability);  
        if(!locationAvailability.isLocationAvailable())
        {// No location available
            checkLocationSettings();
            Snackbar snackLocationUnavailable = Snackbar.make(findViewById(R.id.myCoordinatorLayout), R.string.location_unavailable, Snackbar.LENGTH_LONG);
            snackLocationUnavailable.show();
        }
        else
        {
            Snackbar snackLocationAvailable = Snackbar.make(findViewById(R.id.myCoordinatorLayout), R.string.location_available, Snackbar.LENGTH_LONG);
            snackLocationAvailable.show();
        }
}


// ...

 LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, mLocationCallback, null).setResultCallback(new ResultCallback<Status>() {
                    @Override
                    public void onResult(@NonNull Status status) {
                        if (status.isSuccess()) { /** Udało się włączyć aktualizacje lokacji */
                            mRequestingLocationUpdates = true;

                        }
                        else {/** Nie udało się włączyć aktualizacji lokacji */
                            Snackbar.make(findViewById(R.id.myCoordinatorLayout), "Status Code: " + status.getStatusCode(), Snackbar.LENGTH_INDEFINITE).show();



                        }
                    }
                });

   private void stopLocationUpdates() {
    LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, mLocationCallback) // trzeba było castnąć bo jakieś jaja były z LocationCallback
            .setResultCallback(new ResultCallback<Status>() {
                @Override
                public void onResult(@NonNull Status status) {
                    if(status.isSuccess()) { /** Udało się wyłączyć aktualizacje lokacji */
                        mRequestingLocationUpdates = false;
                    }
                    else {/** Nie udało się wyłączyć aktualizacji lokacji */
                        // mRequestingLocationUpdates = true; // ?!!?
                    }
                }
            });
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