app/src/main/res/menu/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_list_selection"
android:icon="@drawable/tick"
android:title="@string/menu_todo_lists" />
<item
android:id="@+id/nav_note_selection"
android:icon="@drawable/note"
android:title="@string/menu_notes" />
</group>
<item android:title="Settings">
<menu>
<group android:checkableBehavior="single">
<item
android:id="@+id/nav_profile"
android:icon="@drawable/profile"
android:title="@string/profile" />
<item
android:id="@+id/nav_credits"
android:icon="@drawable/credits"
android:title="@string/credits" />
</group>
</menu>
</item>
</menu>