fedilab-Android-App/app/src/main/res/layout/fragment_slide_media.xml

<?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/main_container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/transparent">

    <RelativeLayout
        android:id="@+id/media_fragment_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/black">
        <!-- Main Loader -->
        <RelativeLayout
            android:id="@+id/loader"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:gravity="center">

            <ProgressBar
                android:id="@+id/pbar_inf"
                style="@style/Base.Widget.AppCompat.ProgressBar.Horizontal"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:indeterminate="false"
                android:max="100"
                android:progress="0" />

            <TextView
                android:id="@+id/loader_progress"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:gravity="center"
                android:textColor="@color/dark_text"
                android:textSize="12sp" />
        </RelativeLayout>

        <FrameLayout
            android:id="@+id/main_media_frame"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_centerInParent="true">

            <app.fedilab.android.webview.CustomWebview
                android:id="@+id/webview_video"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:visibility="gone" />
        </FrameLayout>

        <RelativeLayout
            android:id="@+id/videoLayout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@color/black"
            android:visibility="gone" />

        <FrameLayout
            android:id="@+id/media_picture_container"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_centerInParent="true">
            <!-- Description is set dynamically -->
            <com.github.chrisbanes.photoview.PhotoView
                android:id="@+id/media_picture"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:adjustViewBounds="true"
                android:visibility="gone" />
        </FrameLayout>

        <RelativeLayout
            android:id="@+id/content_audio"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            android:orientation="vertical"
            android:visibility="gone">

            <LinearLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentTop="true"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="50dp"
                android:orientation="vertical">

                <TextView
                    android:id="@+id/status"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginBottom="-10dp"
                    android:fontFamily="sans-serif-light"
                    android:textColor="@android:color/white"
                    android:textSize="20sp"
                    android:visibility="invisible" />

                <TextView
                    android:id="@+id/timer"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:fontFamily="sans-serif-thin"
                    android:text="00:00:00"
                    android:textColor="@android:color/white"
                    android:textSize="60sp"
                    tools:ignore="HardcodedText" />

            </LinearLayout>

            <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="@dimen/aar_footer_height"
                android:layout_alignParentBottom="true">

                <ImageButton
                    android:id="@+id/play"
                    style="@style/Widget.AppCompat.Button.Borderless"
                    android:layout_width="80dp"
                    android:layout_height="80dp"
                    android:layout_centerInParent="true"
                    android:layout_centerVertical="true"
                    android:layout_marginTop="50dp"
                    android:contentDescription="@string/play_video"
                    android:onClick="togglePlaying"
                    android:padding="10dp"
                    android:scaleType="fitCenter"
                    android:src="@drawable/aar_ic_play" />
            </RelativeLayout>

        </RelativeLayout>

        <com.google.android.exoplayer2.ui.PlayerView
            android:id="@+id/media_video"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_centerInParent="true"
            android:visibility="gone" />


        <ImageView
            android:id="@+id/media_prev"
            android:layout_width="30dp"
            android:layout_height="50dp"
            android:layout_alignParentStart="true"
            android:layout_centerVertical="true"
            android:layout_marginStart="5dp"
            android:layout_marginLeft="5dp"
            android:layout_marginTop="5dp"
            android:layout_marginEnd="5dp"
            android:layout_marginRight="5dp"
            android:layout_marginBottom="5dp"
            android:background="@color/transparent_grey"
            android:contentDescription="@string/previous"
            android:src="@drawable/ic_first_page"
            android:tint="@color/white"
            android:visibility="gone" />

        <ImageView
            android:id="@+id/media_next"
            android:layout_width="30dp"
            android:layout_height="50dp"
            android:layout_alignParentEnd="true"
            android:layout_centerVertical="true"
            android:layout_marginStart="5dp"
            android:layout_marginLeft="5dp"
            android:layout_marginTop="5dp"
            android:layout_marginEnd="5dp"
            android:layout_marginRight="5dp"
            android:layout_marginBottom="5dp"
            android:background="@color/transparent_grey"
            android:contentDescription="@string/next"
            android:src="@drawable/ic_last_page"
            android:visibility="gone" />


        <TextView
            android:id="@+id/message_ready"
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:layout_alignBottom="@+id/media_picture_container"
            android:layout_marginBottom="40dp"
            android:background="@drawable/media_message_border"
            android:gravity="center"

            android:text="@string/media_ready"
            android:textColor="@color/dark_text"
            android:textSize="14sp"
            android:visibility="gone" />
    </RelativeLayout>
</FrameLayout>