FairEmail/app/src/main/res/layout/include_message_attachments.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <View
        android:id="@+id/vSeparatorAttachments"
        android:layout_width="0dp"
        android:layout_height="1dp"
        android:layout_marginTop="3dp"
        android:background="?attr/colorSeparator"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/rvAttachment"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="6dp"
        android:layout_marginTop="3dp"
        android:layout_marginEnd="6dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/vSeparatorAttachments" />

    <CheckBox
        android:id="@+id/cbInline"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="3dp"
        android:text="@string/title_show_inline"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/rvAttachment" />

    <Button
        android:id="@+id/btnSaveAttachments"
        style="?android:attr/buttonStyleSmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:minWidth="0dp"
        android:minHeight="0dp"
        android:text="@string/title_save_all"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/cbInline" />

    <Button
        android:id="@+id/btnDownloadAttachments"
        style="?android:attr/buttonStyleSmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:minWidth="0dp"
        android:minHeight="0dp"
        android:text="@string/title_download_all"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@id/cbInline" />

    <androidx.constraintlayout.widget.Barrier
        android:id="@+id/barrier_internet"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:barrierDirection="bottom"
        app:constraint_referenced_ids="btnDownloadAttachments,btnSaveAttachments" />

    <TextView
        android:id="@+id/tvNoInternetAttachments"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="6dp"
        android:layout_marginEnd="6dp"
        android:text="@string/title_no_internet"
        android:textAppearance="@style/TextAppearance.AppCompat.Small"
        app:layout_constraintEnd_toEndOf="@id/rvAttachment"
        app:layout_constraintStart_toStartOf="@id/rvAttachment"
        app:layout_constraintTop_toBottomOf="@id/barrier_internet" />

    <androidx.constraintlayout.widget.Group
        android:id="@+id/grpAttachments"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:constraint_referenced_ids="vSeparatorAttachments,rvAttachment" />
</androidx.constraintlayout.widget.ConstraintLayout>