Predicate with block

gistfile1.m

//create predicate and filter the results
    NSPredicate *distancePredicate = [NSPredicate predicateWithBlock:^BOOL(Establishment *a, NSDictionary *binding)
    {
        CLLocation *myLocation = [[CLLocation alloc] initWithLatitude:[a.latitude doubleValue]
                                                            longitude:[a.longitude doubleValue]];
        return [location distanceFromLocation:myLocation] <= __distance;
    }];
    
    NSArray *resultado =  [shops filteredArrayUsingPredicate:distancePredicate];