<?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"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context=".ui.activities.MainActivity">

    <item
        android:id="@+id/action_library"
        android:title="@string/action_library"
        app:showAsAction="never">

        <menu>
            <group android:checkableBehavior="single">
                <item
                    android:id="@+id/action_library_jpop"
                    android:title="@string/jpop" />

                <item
                    android:id="@+id/action_library_kpop"
                    android:title="@string/kpop" />
            </group>
        </menu>

    </item>

    <item
        android:id="@+id/action_logout"
        android:title="@string/logout"
        app:showAsAction="never" />

    <item
        android:id="@+id/action_settings"
        android:title="@string/settings"
        app:showAsAction="never" />

    <item
        android:id="@+id/action_about"
        android:title="@string/about"
        app:showAsAction="never" />

    <item
        android:id="@+id/action_sleep_timer"
        android:title="@string/sleep_timer"
        app:showAsAction="never" />

</menu>

<?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"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context=".ui.activities.MainActivity">

    <item
        android:id="@+id/action_library"
        android:title="@string/action_library"
        app:showAsAction="never">

        <menu>
            <group android:checkableBehavior="single">
                <item
                    android:id="@+id/action_library_jpop"
                    android:title="@string/jpop" />

                <item
                    android:id="@+id/action_library_kpop"
                    android:title="@string/kpop" />
            </group>
        </menu>

    </item>

    <item
        android:id="@+id/action_settings"
        android:title="@string/settings"
        app:showAsAction="never" />

    <item
        android:id="@+id/action_about"
        android:title="@string/about"
        app:showAsAction="never" />

    <item
        android:id="@+id/action_sleep_timer"
        android:title="@string/sleep_timer"
        app:showAsAction="never" />

    <item
        android:id="@+id/action_logout"
        android:title="@string/logout"
        app:showAsAction="never" />

</menu>

Move logout to bottom of menu
Move logout to bottom of menu
