session-android/res/layout/media_view_edit_button.xml

<?xml version="1.0" encoding="utf-8"?>
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
           android:id="@+id/edit_image_button"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:layout_gravity="bottom|right"
           android:src="@drawable/conversation_attachment_edit"
           android:visibility="gone"/>