wulkanowy-mod/app/src/main/res/layout/item_message.xml

<androidx.constraintlayout.widget.ConstraintLayout 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"
    android:id="@+id/relativeLayout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="?selectableItemBackground"
    android:paddingLeft="16dp"
    android:paddingTop="10dp"
    android:paddingRight="16dp"
    android:paddingBottom="10dp"
    tools:context=".ui.modules.message.MessageItem">

    <TextView
        android:id="@+id/messageItemAuthor"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginEnd="10dp"
        android:layout_marginRight="10dp"
        android:ellipsize="end"
        android:singleLine="true"
        android:textSize="15sp"
        app:layout_constraintEnd_toStartOf="@+id/messageItemDate"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:text="@tools:sample/lorem/random" />

    <TextView
        android:id="@+id/messageItemDate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="end"
        android:textSize="13sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:text="@tools:sample/date/ddmmyy" />

    <TextView
        android:id="@+id/messageItemSubject"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="5dp"
        android:layout_marginEnd="10dp"
        android:ellipsize="end"
        android:singleLine="true"
        android:textColor="?android:textColorSecondary"
        android:textSize="12sp"
        app:layout_constraintEnd_toStartOf="@id/messageItemAttachmentIcon"
        app:layout_constraintStart_toStartOf="@id/messageItemAuthor"
        app:layout_constraintTop_toBottomOf="@+id/messageItemAuthor"
        app:layout_goneMarginEnd="0dp"
        tools:text="@tools:sample/lorem/random" />

    <ImageView
        android:id="@+id/messageItemAttachmentIcon"
        android:layout_width="16dp"
        android:layout_height="16dp"
        android:visibility="gone"
        app:layout_constraintBottom_toBottomOf="@id/messageItemSubject"
        app:layout_constraintEnd_toEndOf="@id/messageItemDate"
        app:srcCompat="@drawable/ic_attachment"
        app:tint="?colorOnBackground"
        tools:ignore="ContentDescription"
        tools:visibility="visible" />
</androidx.constraintlayout.widget.ConstraintLayout>