topic Re: Displaying callouts in ArcGIS Runtime SDK for iOS Questions

Displaying callouts

PhilippFauser — Fri, 09 Nov 2012 22:48:03 GMT

Hi,

I want to display callouts on my map.
The map and the layer for the graphic objects is displayed with this code:

NSString* passauStreetMapUrl = @"http://www.geoportal.passau.de/ArcGIS/rest/services/STADTPLAN/MapServer"; NSString* passauPoiLayerUrl = @"http://www.geoportal.passau.de/ArcGIS/rest/services/APPDATEN/MapServer"; NSString* worldMapUrl = @"http://server.arcgisonline.com/ArcGIS/rest/services/ESRI_StreetMap_World_2D/MapServer";  //set this class as the delegate for the callout (popups)     self.mapView.calloutDelegate = self;          //set this class as the delegate for the mapview     self.mapView.layerDelegate = self;              //set wrap around vor the world map view     self.mapView.wrapAround = YES;          //create url     NSURL* urlPassauMap = [NSURL URLWithString: passauStreetMapUrl];     NSURL* urlPassauPoiLayer = [NSURL URLWithString: passauPoiLayerUrl];          //create tiled(PassauAirMap) and dynamic(PassauMap with layers) maps     self.layerPassauMap = [AGSDynamicMapServiceLayer dynamicMapServiceLayerWithURL: urlPassauMap];     self.layerPassauPoi = [AGSDynamicMapServiceLayer dynamicMapServiceLayerWithURL: urlPassauPoiLayer];          //add maps to view     self.lyrView = [self.mapView addMapLayer:self.layerPassauMap withName:@"layerPassauMap"];     self.lyrView = [self.mapView addMapLayer:self.layerPassauPoi withName:@"layerPassauPoi"];          //set certain layers of the PassauMap to visible     self.layerPassauPoi.visibleLayers = [NSArray arrayWithObjects:[NSNumber numberWithInt:0], nil];

Now I want to add callout to the graphic objects on self.layerPassauPoi.
Is it possible to get the graphic objects out of the layerPassauPoi.visibleLayers (AGSDynamicMapServiceLayer) array and set the "infoTemplateDelegate" on these graphic objects? Or maybe not from the visibleLayers-array but from an other part of the AGSDynamicMapServiceLayer?
Or is this approach completely wrong?

It would be great if someone could give me a little hint!:)

______
Philipp

Re: Displaying callouts

PhilippFauser — Wed, 14 Nov 2012 10:36:54 GMT

Okay, I think I'm gonna rephrase my question:

First: I add a layer to my mapView. On this layer I use the layer.visibleLayers array to display the sub-layer (these are certain points of sights on the map)

Second: Now I want to show a popup window if the user clicks on a sight point.

Now my question:
Is "Second" possible with the method I display the points on the map (described in "First")?
The API about layer.visibleLayers says "The sub-layers to be included in the map image exported by the map service.". Does that mean the sight points are no extra graphics but included in the map image, so a click on a sight point is not recognized?

If all answers are "No": How can I achieve this functionality with other methods?

Re: Displaying callouts

PhilippFauser — Wed, 14 Nov 2012 17:39:23 GMT

And the answer is "No"! 😉
I have to use an AGSFeatureLayer instead of the AGSDynamicMapServiceLayer.

Re: Displaying callouts

NimeshJarecha — Wed, 14 Nov 2012 21:35:40 GMT

Yes, you are correct. You've to use AGSFeatureLayer if you want your tap to recognize graphic and show callout/popup.

Regards,
Nimesh

Re: Displaying callouts

DiveshGoyal — Mon, 19 Nov 2012 21:30:52 GMT

Check out our latest sample showing how to display popups.