IPrint/app/src/main/res/layout/activity_photo_folder.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:background="@color/all_black"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <include layout="@layout/navigationbar" />

    <ProgressBar
        android:layout_gravity="center"
        android:id="@+id/progress"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true" />

    <GridView
        android:gravity="center"
        android:id="@+id/grv_list_album"
        android:paddingTop="5dp"
        android:paddingBottom="5dp"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:horizontalSpacing="5dp"
        android:verticalSpacing="10dp"
        android:columnWidth="115dp"
        android:numColumns="auto_fit"
        android:layout_below="@+id/navigation_bar" />
</RelativeLayout>