chinwag-android/app/src/main/res/layout/fragment_view_video.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_gravity="center"
    android:clickable="true"
    android:focusable="true">

    <TextView
        android:id="@+id/mediaDescription"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toBottomOf="@+id/toolbar"
        app:layout_constraintBottom_toTopOf="@+id/videoPlayer"
        android:background="#60000000"
        android:lineSpacingMultiplier="1.1"
        android:padding="8dp"
        android:textAlignment="center"
        android:textColor="#eee"
        android:textSize="?attr/status_text_medium"
        tools:text="Some media description" />

    <VideoView
        android:id="@+id/videoPlayer"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        android:layout_gravity="center"
        />

    <ProgressBar
        android:id="@+id/progressBar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        android:layout_gravity="center" />

</androidx.constraintlayout.widget.ConstraintLayout>