如何在SAPUI5 XML视图中获取ActionSelect控件中的选定项文本

<mvc:View xmlns:mvc="sap.ui.core.mvc" xmlns="sap.m">
  <ActionSelect items="{/items}" change="onItemSelected">
    <items>
      <ActionSelectItem key="1" text="Option 1" />
      <ActionSelectItem key="2" text="Option 2" />
      <ActionSelectItem key="3" text="Option 3" />
    </items>
  </ActionSelect>
</mvc:View>

sap.ui.define([
  "sap/ui/core/mvc/Controller"
], function(Controller) {
  "use strict";
  
  return Controller.extend("myController", {
    onItemSelected: function(oEvent) {
      var oSelectedItem = oEvent.getParameter("selectedItem");
      var sSelectedText = oSelectedItem.getText();
      console.log("Selected Text: " + sSelectedText);
    }
  });
});