Signal-Android/app/src/main/res/layout/thumbnail_view.xml

<?xml version="1.0" encoding="utf-8"?>
<merge 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"
    tools:parentTag="android.widget.FrameLayout"
    tools:viewBindingIgnore="true">

    <ImageView
        android:id="@+id/thumbnail_blurhash"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:adjustViewBounds="true"
        android:clickable="false"
        android:contentDescription="@string/conversation_item__mms_image_description"
        android:longClickable="false"
        android:scaleType="fitCenter" />

    <ImageView
        android:id="@+id/thumbnail_image"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:adjustViewBounds="true"
        android:clickable="false"
        android:contentDescription="@string/conversation_item__mms_image_description"
        android:longClickable="false"
        android:scaleType="centerCrop" />

    <ImageView
        android:id="@+id/thumbnail_caption_icon"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:contentDescription="@string/ThumbnailView_Has_a_caption_description"
        android:padding="6dp"
        android:src="@drawable/ic_caption_28"
        android:visibility="gone"
        tools:visibility="visible" />

    <androidx.appcompat.widget.AppCompatImageView
        android:id="@+id/thumbnail_error"
        android:layout_width="20dp"
        android:layout_height="20dp"
        android:layout_gravity="center"
        android:longClickable="false"
        android:visibility="gone"
        app:srcCompat="@drawable/ic_error_outline_24"
        app:tint="@color/signal_colorOnSurface"
        tools:visibility="visible" />

    <FrameLayout
        android:id="@+id/play_overlay"
        android:layout_width="48dp"
        android:layout_height="48dp"
        android:layout_gravity="center"
        android:background="@drawable/circle_white"
        android:longClickable="false"
        android:visibility="gone"
        tools:visibility="visible">

        <androidx.appcompat.widget.AppCompatImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_margin="12dp"
            android:contentDescription="@string/ThumbnailView_Play_video_description"
            android:paddingLeft="5dp"
            android:scaleType="fitXY"
            android:tint="@color/core_ultramarine"
            app:srcCompat="@drawable/triangle_right"
            tools:ignore="RtlHardcoded,RtlSymmetry" />

    </FrameLayout>

    <ViewStub
        android:id="@+id/transfer_controls_stub"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout="@layout/transfer_controls_stub" />

</merge>