<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/messagecentermessage"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".inbox.InboxMessageFragment">

    <WebView
        android:id="@+id/webView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</android.support.constraint.ConstraintLayout>

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/inboxFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".inbox.InboxMessageFragment">

    <WebView
        android:id="@+id/webView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</FrameLayout>

Replace ConstraintLayout with FrameLayout in Inbox UI
Replace ConstraintLayout with FrameLayout in Inbox UI
