WorldPin Socket Events

gistfile1.m

[self.socket on: @"update" callback: ^(SIOParameterArray *args)
{
    // pinData == @"pinID:lat,long"
    // self.pins == @{@"pinID": <WPAnnotation @ (lat, long)>}

    NSString *pinData = [args firstObject];

    NSArray *dataPieces = [pinData componentsSeparatedByString: @":"];
    NSString *pinID = [dataPieces firstObject];
    
    NSString *pinLocationString = [dataPieces lastObject];
    WPAnnotation *pin = [[WPAnnotation alloc] initWithCoordinateString: pinLocationString];
    
    if ([[self.pins allKeys] containsObject: pinID])
    {
        CLLocationCoordinate2D newCoordinate = pin.coordinate;
        pin = self.pins[pinID];
        
        pin.coordinate = newCoordinate;
        [self.mapView removeAnnotation: pin];
    }
    
    self.pins[pinID] = pin;
    [self.mapView addAnnotation: pin];
}];