QSPackKit/sdk/jm_jq/res/layout/activity_init.xml

<?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">

    <ProgressBar
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:layout_centerInParent="true"/>

    <WebView
        android:id="@id/close_wv"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="gone"/>

</RelativeLayout>