How to get dividers in NavigationView menu without titles?

From: NavigationView: how to insert divider without subgroup?

It looks like you just need to give your group tags unique ID's.

<group android:id="@+id/my_id">    <!-- Divider will appear above this item -->    <item ... /></group>

As the answer says:

[NavigationView] will create a divider every time the group id is changed

This is exact solution for your question here.

<?xml version="1.0" encoding="utf-8"?><menu xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto">    <group        android:id="@+id/menu_top"        android:checkableBehavior="single">        <item android:title="Switch Team">            <menu>                <item                    android:id="@+id/team"                    android:title=""                    app:actionLayout="@layout/layout_spinner_for_drawer"/>            </menu>        </item>    </group>    <group        android:id="@+id/menu_bottom"        android:checkableBehavior="single">            <item                android:id="@+id/nav_home"                android:icon="@drawable/home"                android:title="Home" />            <item                android:id="@+id/nav_share"                android:icon="@drawable/sharebox"                android:title="Sharebox" />            <item                android:id="@+id/nav_recognize"                android:icon="@drawable/recognize"                android:title="Recognize" />            <item                android:id="@+id/nav_contact_us"                android:icon="@drawable/contactus"                android:title="Contact Us" />            <item                android:id="@+id/nav_logout"                android:icon="@drawable/signout"                android:title="Logout" />    </group></menu>