<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="100dp"
    android:layout_height="100dp"
    android:background="@drawable/shape_main_dialog"
    android:gravity="center"
    android:orientation="vertical">

    <ProgressBar
        android:layout_width="60dp"
        android:indeterminate="true"
        android:layout_height="60dp" />

</LinearLayout>