session-android/res/layout/transfer_controls_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="org.thoughtcrime.securesms.components.TransferControlView">

    <com.pnikosis.materialishprogress.ProgressWheel
        android:id="@+id/progress_wheel"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:visibility="gone"
        android:padding="4dp"
        app:matProg_barColor="@color/core_blue"
        app:matProg_rimColor="@color/core_grey_05"
        app:matProg_linearProgress="true"
        app:matProg_spinSpeed="0.2"
        app:matProg_barWidth="2dp"
        app:matProg_rimWidth="2dp"
        app:matProg_circleRadius="24dp"
        tools:visibility="visible"/>

    <LinearLayout
        android:id="@+id/download_details"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:padding="4dp"
        android:gravity="center"
        android:orientation="horizontal"
        android:visibility="gone"
        tools:visibility="visible">

        <ImageView
            android:layout_width="24dp"
            android:layout_height="24dp"
            android:tint="@color/core_grey_60"
            app:srcCompat="@drawable/ic_arrow_down_circle_filled" />

        <TextView
            android:id="@+id/download_details_text"
            style="@style/Signal.Text.Preview"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="4dp"
            android:layout_marginEnd="4dp"
            android:fontFamily="sans-serif-medium"
            android:gravity="center"
            android:longClickable="false"
            android:textColor="@color/black" />

    </LinearLayout>

</merge>