topic Re: Add Legend Icon to LayerList ListItems in ArcGIS JavaScript Maps SDK Questions

Add Legend Icon to LayerList ListItems

GregoryBologna — Wed, 22 May 2019 21:32:13 GMT

How do I get to the appropriate legend icon data from within listItemCreatedFunction and add the icon graphic to a Layerlist item?

I am adding a legend to a LayerList with the legend button to the right of the layer title, and the legend icon graphic below the layer title.

added with the code here

var featureLayer = map.layers.getItemAt(2);

if (item.layer.type != "group") {

// don't show legend twice

item.panel = {

content: "legend",

layerInfos: [{

layer: featureLayer,

title: "blah"

}],

open: false

};

} // end type

I want to change this so that the legend icons are added to the LayerList Listitems instead.

(image is from a web app. builder. I am not using wab)

VictorTey — Thu, 23 May 2019 03:51:25 GMT

Not sure which part of the question are you stuck with

Do you need help getting the legend?

You can get the legend from

Or do you need help getting the legend to appear under the layerlist item

GregoryBologna — Thu, 23 May 2019 12:21:03 GMT

I need to add the legend icon to appear within each listitem. I will add a button beside the layer to toggle open\close state of all the listitems.

Web Layer Title [icon-button] <--- click button to open layer legend

Public Schools

Sales

Web Layer Title [icon-button] <--- click button to close layer legend

Public Schools

Sales