Custom Floor switcher widget WAB

ChadRicks

I've been trying to make a custom widget to switch between floors using radio buttons. I have a portal web map for each floor and want the radio button to display that floor with I click on it. It doesn't display to new map when clicked. What to do to make it work? Thanks!

define([

    'jimu/BaseWidget',

    "esri/dijit/BasemapLayer",

    "esri/arcgis/utils",

    'esri/layers/ImageParameters',

    'dojo/domReady!'

], function(

    BaseWidget,

    BasemapLayer,

    arcgisUtils,

    ImageParameters) {

    function FloorSwitchWidget(params) {

        this.constructor(params);

    }

    var map, baseStartup;

    FloorSwitchWidget.prototype = BaseWidget.prototype;

    FloorSwitchWidget.prototype.templateString =

        '<div><b>Choose a floor to view</b><br><br>\