Added remark

app/src/main/res/layout/dialog_delete_attachments.xml

@@ -25,7 +25,7 @@
         app:fastScrollVerticalThumbDrawable="@drawable/scroll_thumb"
         app:fastScrollVerticalTrackDrawable="@drawable/scroll_track"
         app:layout_constrainedHeight="true"
-        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintBottom_toTopOf="@+id/tvRemark"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
@@ -41,4 +41,17 @@
         app:layout_constraintEnd_toEndOf="@id/rvAttachment"
         app:layout_constraintStart_toStartOf="@id/rvAttachment"
         app:layout_constraintTop_toTopOf="@id/rvAttachment" />
+
+    <TextView
+        android:id="@+id/tvRemark"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="12dp"
+        android:text="@string/title_delete_attachments_remark"
+        android:textAppearance="@style/TextAppearance.AppCompat.Small"
+        android:textStyle="italic"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/rvAttachment" />
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/values/strings.xml

@@ -1441,6 +1441,10 @@
     <string name="title_report_spam">Treat as spam</string>
     <string name="title_delete_permanently">Delete permanently</string>
     <string name="title_delete_attachments">Delete attachments</string>
+    <string name="title_delete_attachments_remark">
+        To delete attachments, a new message must be added and the old message must be deleted.
+        Since this may fail, the old message will be moved to the trash.
+    </string>
     <string name="title_snooze">Snooze &#8230;</string>
     <string name="title_archive">Archive</string>
     <string name="title_reply">Reply</string>