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


    <FrameLayout
        android:id="@+id/rnFragmentView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"></FrameLayout>

    <ProgressBar
        android:id="@+id/rnLoadingView"
        android:layout_width="30dip"
        android:layout_height="30dip"
        android:layout_centerInParent="true" />

</RelativeLayout>