how can i get graphics from featurelayer

[XiaoJing]

here is my code:

AGSFeatureLayer* featureLayer = [AGSFeatureLayer featureServiceLayerWithURL:[NSURL URLWithString:featureURL] mode:AGSFeatureLayerModeOnDemand];
[self.mapView addMapLayer:featureLayer withName:@"feature"];

- (void) mapView:(AGSMapView *)mapView didLoadLayerForLayerView:(UIView< AGSLayerView > *) layerView{
             if ([@"feature" isEqualToString:layerView.name]) {
  AGSFeatureLayer *featureLayer = (AGSFeatureLayer *)layerView.agsLayer;
  NSArray* ff = featureLayer.graphics;
  NSLog(@"%i", [ff count]);
}
}

the graphics array count always 0.Is there something I did is wrong?

[NimeshJarecha]

You are trying to get the graphics too soon. The graphics are not loaded in AGSFeatureLayer.graphics when layer is created. When layer is created and added to map, layer send a query to server to fetch the features. And after that you should try to get the graphics from feature layer.

Hope this helps!

Regards,
Nimesh