FossifyGallery/app/src/main/res/menu/menu_media.xml

<?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">
    <item
        android:id="@+id/sort"
        android:icon="@mipmap/sort"
        android:title="@string/sort_by"
        app:showAsAction="ifRoom"/>
    <item
        android:id="@+id/hide_folder"
        android:title="@string/hide_folder"
        app:showAsAction="never"/>

</menu>