Adding Map Layers

JeffPapirtis

Since ESRI documentation on the Beta SDK is still a work in progress, can any one give me some help on adding individual map layers from a rest service?  I am pretty solid on adding the map service from the documentation thus far, but am not exactly sure on how to impelement individual layers within the map.

Ex: basemap rest service
(3) = roads

"http://server.maphost_example/ArcGIS/rest/services/basemap/MapServer/3"

I just want to add one layer from my map service.

Any Ideas?

Thanks in advance!

JeremyBixby

Use the addLayer method.  For example, this is from the header file from a map nib I have:

-(void) addLenexaTiledMapLayer:(NSString*)layerURL:(NSString*) lyrName;
-(void) addLenexaTiledMapLayerURL:(NSURL*)layerURL:(NSString*) lyrName;
-(void) removeLenexaMapLayer:(NSString*)layerName;
-(void) addLenexaDynamicMapLayer:(NSString*)layerURL:(NSString*) lyrName;

And here is the implementations of said functions, in the .m file:

-(void) addLenexaTiledMapLayerURL:(NSURL*)layerURL:(NSString*)lyrName{
 
 AGSTiledMapServiceLayer *tiledMapLyr = [[AGSTiledMapServiceLayer alloc] initWithURL:layerURL];
 [mapView addMapLayer:tiledMapLyr withName:lyrName];
 [tiledMapLyr release];
 
}

-(void) addLenexaTiledMapLayer:(NSString*)layerURL:(NSString*)lyrName{
 
 AGSTiledMapServiceLayer *tiledMapLyr = [[AGSTiledMapServiceLayer alloc] initWithURL:[NSURL URLWithString:layerURL]];
 [mapView addMapLayer:tiledMapLyr withName:lyrName];
 [tiledMapLyr release];

}
-(void) removeLenexaMapLayer:(NSString*)layerURL:(NSString*)lyrName{
 [mapView removeMapLayerWithName:lyrName];
}
-(void) addLenexaDynamicMapLayer:(NSString*)layerURL:(NSString*)lyrName{

 AGSDynamicMapServiceLayer *dynaMapLyr = [[AGSDynamicMapServiceLayer alloc] initWithURL:[NSURL URLWithString:layerURL]];
 dynaMapLyr.dpi = 96;
 [mapView addMapLayer:dynaMapLyr withName:lyrName];
 
 [dynaMapLyr release];
 
}

and then if you want to access the layer once it's been added to the map, use the appropriate layerview object:

 AGSTiledLayerView *basemapView = [self.mapView.mapLayerViews objectForKey:@myBasemap];
 basemapView.alpha = self.mySlider.value;