topic Re: Legend in ArcGIS Runtime SDK for Android Questions

Legend

BrianGustafson — Mon, 30 Jul 2012 17:23:37 GMT

Are there any samples on using a legend with a service that is hosted from my ArcGIS Server. I keep getting errors when I try to usethe get legend method on the LayerInfos.

Re: Legend

tempJamiePowell — Wed, 01 Aug 2012 19:55:47 GMT

I dont see any samples currently available. What are the errors produced?

Re: Legend

BrianGustafson — Thu, 02 Aug 2012 12:24:00 GMT

The return from requesting the legend items is always null. Then when I try and access that collection it throws a nullpointerexception.

Re: Legend

tempJamiePowell — Thu, 02 Aug 2012 20:27:40 GMT

Do you get the same result when accessing any other services, or is it specific to that service?

Re: Legend

SimonKlein — Wed, 08 Aug 2012 04:45:04 GMT

Are you using 10.1 on your server?

Re: Legend

EgorFedorov — Tue, 08 Jul 2014 07:58:15 GMT

According to documentation, to have layer legend info available for your ArcGISDynamicMapServiceLayer you must call retrieveLegendInfo() method on this layer instance. Also it must be called in separate thread. The following seems to be good approach:

mapView.setOnStatusChangedListener(new OnStatusChangedListener() {

@Override

public void onStatusChanged(Object o, STATUS status) {

if (status == STATUS.LAYER_LOADED) {

if (o instanceof ArcGISDynamicMapServiceLayer) {

//retrieving legend info

new AsyncTask<Void, Void, Void>() {

@Override

protected Void doInBackground(Void... voids) {

dynamicLayer.retrieveLegendInfo();

return null;

}

}.execute();

}

});