Changing BaseMap using Gallery

Question

Hello Everyone,
I am having trouble changing my base map from and to one of the ESRI basemaps in my app.  I can get the portal group and items fine but when I try to get a AGSWebMap from the PortalItem and then try to create a base map from there I get a null basemap value.  I have been trying to follow this thread http://forums.arcgis.com/threads/57085-basemap-gallery?highlight=base and the portal sample but i seem to be failing somewhere.  Below is my current code for trying get the AGSWebMapBaseMap so I can use the openIntoMapView withAlternateBaseMap method.  
Any help would be great.
Cheers,
Jeff(void) didSelectNewBaseMap:(AGSPortalItem *)BaseMapPortalItem {     AGSWebMap *NewBaseWebMap = [[AGSWebMap alloc] initWithPortalItem:BaseMapPortalItem];     AGSWebMapBaseMap *NewWebmapBaseMap = [[AGSWebMapBaseMap alloc]init];     NewWebmapBaseMap = [NewBaseWebMap baseMap];     [self.webmap openIntoMapView:self.mapView withAlternateBaseMap:NewWebmapBaseMap resetMapView:NO]; }

NimeshJarecha · Accepted Answer

Hi Jeff,

Your code should look like this...-(void) didSelectNewBaseMap:(AGSPortalItem *)BaseMapPortalItem {     AGSWebMap *NewBaseWebMap = [AGSWebMap webMapWithPortalItem:BaseMapPortalItem];     NewBaseWebMap.delegate = self; }  //webmap delegate - (void)webMapDidLoad:(AGSWebMap *)webMap {     [self.webmap openIntoMapView:self.mapView withAlternateBaseMap:webMap.baseMap]; }

Regards,
Nimesh