Adjust Resize causing progressbar to shift to the right

Question

I have a progress bar inside a RelativeLayout. Everything works fine until I display a softkeyboard and the progressbar shifts to the right.

<RelativeLayout
        android:id="@+id/fragment_video_video_layout"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintHeight_percent=".33"
        app:layout_constraintWidth_default="percent"
        app:layout_constraintTop_toTopOf="parent"
        android:gravity="center">

        <VideoView
            android:id="@+id/fragment_video_video_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>

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

    </RelativeLayout>

How do I prevent the progressBar from shifting to the right?

Edit1: _______________Entire Layout___________________________

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:background="@color/blackBackground">


    <RelativeLayout
        android:id="@+id/fragment_video_video_layout"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintHeight_percent=".33"
        app:layout_constraintWidth_default="percent"
        app:layout_constraintTop_toTopOf="parent"
        android:gravity="center">

        <VideoView
            android:id="@+id/fragment_video_video_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>

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

    </RelativeLayout>




    <TextView
        android:id="@+id/fragment_video_textview_chat"
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:gravity="center_vertical"
        android:text="Chat"
        android:textColor="@color/colorBlack"
        app:layout_constraintTop_toBottomOf="@+id/fragment_video_video_layout"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        android:background="@color/whiteText"
        android:paddingLeft="12dp"/>


    <RelativeLayout
        android:id="@+id/fragment_video_sendmessage_layout"
        android:layout_width="match_parent"
        android:layout_height="49dp"
        android:layout_alignParentBottom="true"
        android:background="@color/whiteText"
        app:layout_constraintBottom_toBottomOf="parent">

        <View
            android:id="@+id/fragment_video_video_divider1"
            android:layout_width="match_parent"
            android:layout_height="0.5dp"
            android:background="@color/dividerColor"/>

        <EditText
            android:id="@+id/fragment_video_sendmessage_edittext"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:hint="Say something in chat"
            android:textSize="14sp"
            android:paddingLeft="12dp"
            android:background="@null"
            android:layout_toLeftOf="@+id/fragment_video_sendmessage_button"
            android:inputType="text"
            android:maxLines="1"
            android:layout_below="@+id/fragment_video_video_divider1"/>

        <Button
            android:id="@+id/fragment_video_sendmessage_button"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_alignParentEnd="true"
            android:text="Send"
            android:background="@null"
            android:textAllCaps="false"
            android:minHeight="0dp"
            android:minWidth="0dp"
            android:padding="10dp"
            android:layout_below="@+id/fragment_video_video_divider1"/>

    </RelativeLayout>

    <android.support.v7.widget.RecyclerView
        android:id="@+id/fragment_video_recycler"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintTop_toBottomOf="@+id/fragment_video_textview_chat"
        app:layout_constraintBottom_toTopOf="@id/fragment_video_sendmessage_layout"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        android:background="@color/whiteText">
    </android.support.v7.widget.RecyclerView>

</android.support.constraint.ConstraintLayout>

Edit2:____________________________________________

Tried changing progressbar to

android:layout_width="match_parent"

This fixes the shifting progressbar however it causes the videoview to shift

Answer 1

It works when I add android:layout_centerInParent="true" in VideoView.

<VideoView
            android:id="@+id/fragment_video_video_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_centerInParent="true" />