linphone-android/app/src/main/res/layout/chat_bubble_content.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">

    <ImageView
        android:id="@+id/image"
        android:layout_width="wrap_content"
        android:layout_height="100dp"
        android:layout_margin="5dp"
        android:adjustViewBounds="true"
        android:visibility="gone" />

    <ImageView
        android:id="@+id/bigImage"
        android:layout_width="wrap_content"
        android:layout_height="300dp"
        android:layout_margin="5dp"
        android:adjustViewBounds="true"
        android:visibility="gone" />

    <TextView
        android:id="@+id/file"
        style="@style/chat_bubble_file_name_font"
        android:layout_width="150dp"
        android:layout_height="100dp"
        android:layout_margin="5dp"
        android:background="@color/colorN"
        android:ellipsize="end"
        android:gravity="center"
        android:textAlignment="center"
        android:visibility="gone" />

    <Button
        android:id="@+id/download"
        style="@style/font8"
        android:layout_width="137dp"
        android:layout_height="40dp"
        android:layout_margin="5dp"
        android:background="@drawable/resizable_assistant_button"
        android:ellipsize="end"
        android:padding="10dp"
        android:text="@string/download_file"
        android:visibility="gone" />

</RelativeLayout>