- (void)locationManager:(CLLocationManager *)manager

     didUpdateLocations:(NSArray *)locations {

    // If it's a relatively recent event, turn off updates to save power
    NSLog(@"%@ locations",locations);

    float Lat = _locationManager.location.coordinate.latitude;
    float Long = _locationManager.location.coordinate.longitude;

    NSLog(@"Lat : %f  Long : %f",Lat,Long);

    CLLocationCoordinate2D center = CLLocationCoordinate2DMake(28.52171,77.2015457);

    NSLog(@"center check %@",center);
    CLCircularRegion *region = [[CLCircularRegion alloc] initWithCenter:center
                                                                 radius:500
                                                             identifier:@"new region"];
    BOOL doesItContainMyPoint = [region containsCoordinate:CLLocationCoordinate2DMake(Lat,Long)];

    NSLog(@"success %hhd", doesItContainMyPoint);

}

the issue is ,here i m providing a static region for which i m checking (center)
but the requirement is, this region will take the lat n long of the riders and riders can vary in number

i hv all lat n long in an array of dictionary. First the driver at pick the first rider in the list and at that time i need the region of rider 1 location.
I m not getting any idea how to achieve this

if i do like this
 for (NsMutableDictionary * dict in goersList)
    {
        rider_id=[dict valueForKey:@"trip_id"];
        lat=[dict valueForKey:@"origin_lat"];
        longi=[dict valueForKey:@"origin_long"];

}
then how will it knw that the first region is to be monitered and after existing from that range i hv to checkfor second location