android/testData/menus/activity_main_drawer.xml

<?xml version="1.0" encoding="utf-8"?>

<menu xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:tools="http://schemas.android.com/tools"
      tools:showIn="navigation_view">

  <group android:checkableBehavior="single">
    <item
        android:id="@+id/nav_camera"
        android:icon="@drawable/ic_menu_camera"
        android:title="Import"/>

    <item
        android:id="@+id/nav_gallery"
        android:icon="@drawable/ic_menu_gallery"
        android:title="Gallery"/>

    <item
        android:id="@+id/nav_slideshow"
        android:icon="@drawable/ic_menu_slideshow"
        android:title="Slideshow"/>

    <item
        android:id="@+id/nav_manage"
        android:icon="@drawable/ic_menu_manage"
        android:title="Tools"/>
  </group>

  <item android:title="Communicate">
    <menu>
      <item
          android:id="@+id/nav_share"
          android:icon="@drawable/ic_menu_share"
          android:title="Share"/>

      <item
          android:id="@+id/nav_send"
          android:icon="@drawable/ic_menu_send"
          android:title="Send"/>
    </menu>
  </item>
</menu>