dandelion/app/src/main/res/menu/main__menu_top.xml

<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=".activity.MainActivity">

    <item
        android:id="@+id/action_notifications"
        android:icon="@drawable/ic_notifications_white_48px__layer"
        android:orderInCategory="100"
        android:title="@string/notifications"
        app:showAsAction="always">
        <menu>
            <item
                android:id="@+id/action_notifications_all"
                android:title="All Notifications" />

            <item
                android:id="@+id/action_notifications_also_commented"
                android:title="Also Commented" />

            <item
                android:id="@+id/action_notifications_comment_on_post"
                android:title="Comment on Post" />

            <item
                android:id="@+id/action_notifications_liked"
                android:title="Liked" />

            <item
                android:id="@+id/action_notifications_mentioned"
                android:title="Mentioned" />

            <item
                android:id="@+id/action_notifications_reshared"
                android:title="Reshared" />
            <item
                android:id="@+id/action_notifications_started_sharing"
                android:title="Started Sharing" />
        </menu>
    </item>
    <item
        android:id="@+id/action_conversations"
        android:icon="@drawable/ic_mail_white_48px__layer"
        android:orderInCategory="200"
        android:title="@string/conversations"
        app:showAsAction="always" />

</menu>