Composer: show number of attachments

app/src/main/java/eu/faircode/email/FragmentCompose.java

@@ -260,6 +260,7 @@ public class FragmentCompose extends FragmentBase {
     private ImageButton ibCcBcc;
     private ImageButton ibRemoveAttachments;
     private ImageButton ibExpanderAttachments;
+    private TextView tvAttachments;
     private RecyclerView rvAttachment;
     private TextView tvNoInternetAttachments;
     private TextView tvDsn;
@@ -423,6 +424,7 @@ public class FragmentCompose extends FragmentBase {
         ibCcBcc = view.findViewById(R.id.ibCcBcc);
         ibRemoveAttachments = view.findViewById(R.id.ibRemoveAttachments);
         ibExpanderAttachments = view.findViewById(R.id.ibExpanderAttachments);
+        tvAttachments = view.findViewById(R.id.tvAttachments);
         rvAttachment = view.findViewById(R.id.rvAttachment);
         tvNoInternetAttachments = view.findViewById(R.id.tvNoInternetAttachments);
         tvDsn = view.findViewById(R.id.tvDsn);
@@ -1534,6 +1536,8 @@ public class FragmentCompose extends FragmentBase {
             }
         });
 
+        tvAttachments.setVisibility(View.GONE);
+
         rvAttachment.setHasFixedSize(false);
         LinearLayoutManager llm = new LinearLayoutManager(getContext());
         rvAttachment.setLayoutManager(llm);
@@ -6754,6 +6758,9 @@ public class FragmentCompose extends FragmentBase {
                             ibRemoveAttachments.setVisibility(attachments.size() > 2 && !hide_attachments ? View.VISIBLE : View.GONE);
                             ibExpanderAttachments.setVisibility(attachments.size() > 1 ? View.VISIBLE : View.GONE);
                             ibExpanderAttachments.setImageLevel(hide_attachments ? 1 /* more */ : 0 /* less */);
+                            tvAttachments.setText(getResources()
+                                    .getQuantityString(R.plurals.title_attachments, attachments.size(), attachments.size()));
+                            tvAttachments.setVisibility(attachments.size() > 0 && hide_attachments ? View.VISIBLE : View.GONE);
                             grpAttachments.setVisibility(attachments.size() > 0 ? View.VISIBLE : View.GONE);
 
                             boolean downloading = false;

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

@@ -278,13 +278,25 @@
                     app:layout_constraintTop_toBottomOf="@id/vSeparatorAttachments"
                     app:srcCompat="@drawable/expander" />
 
+                <TextView
+                    android:id="@+id/tvAttachments"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_marginStart="6dp"
+                    android:layout_marginEnd="6dp"
+                    android:text="10 attachments"
+                    android:textAppearance="@style/TextAppearance.AppCompat.Small"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toBottomOf="@id/ibExpanderAttachments" />
+
                 <eu.faircode.email.FixedRecyclerView
                     android:id="@+id/rvAttachment"
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
                     app:layout_constraintEnd_toEndOf="parent"
                     app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintTop_toBottomOf="@+id/ibExpanderAttachments"
+                    app:layout_constraintTop_toBottomOf="@+id/tvAttachments"
                     app:layout_goneMarginTop="6dp" />
 
                 <TextView