Added hint about send dialog

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

@@ -3615,6 +3615,7 @@ public class FragmentCompose extends FragmentBase {
             final TextView tvRemindSubject = dview.findViewById(R.id.tvRemindSubject);
             final TextView tvRemindAttachment = dview.findViewById(R.id.tvRemindAttachment);
             final CheckBox cbNotAgain = dview.findViewById(R.id.cbNotAgain);
+            final TextView tvNotAgain = dview.findViewById(R.id.tvNotAgain);
 
             tvTo.setText(null);
             tvVia.setText(null);
@@ -3623,6 +3624,14 @@ public class FragmentCompose extends FragmentBase {
             tvRemindAttachment.setVisibility(remind_attachment ? View.VISIBLE : View.GONE);
             cbNotAgain.setChecked(!send_dialog);
             cbNotAgain.setVisibility(dialog ? View.VISIBLE : View.GONE);
+            tvNotAgain.setVisibility(cbNotAgain.isChecked() && send_dialog ? View.VISIBLE : View.GONE);
+
+            cbNotAgain.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+                @Override
+                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+                    tvNotAgain.setVisibility(isChecked && send_dialog ? View.VISIBLE : View.GONE);
+                }
+            });
 
             DB db = DB.getInstance(getContext());
             db.message().liveMessage(id).observe(getViewLifecycleOwner(), new Observer<TupleMessageEx>() {

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

@@ -151,5 +151,16 @@
             android:textAppearance="@style/TextAppearance.AppCompat.Small"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/tvRemindAttachment" />
+
+        <TextView
+            android:id="@+id/tvNotAgain"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="6dp"
+            android:text="@string/title_send_dialog_hint"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
+            android:textStyle="italic"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/cbNotAgain" />
     </androidx.constraintlayout.widget.ConstraintLayout>
 </ScrollView>

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

@@ -587,6 +587,7 @@
     <string name="title_attachment_keywords">attached,attachment,attachments,included</string>
     <string name="title_attachment_reminder">Did you intend to add an attachment?</string>
     <string name="title_attachments_missing">Not all attachments are downloaded</string>
+    <string name="title_send_dialog_hint">This dialog will still be available via the three dot overflow menu in the action bar</string>
     <string name="title_draft_deleted">Draft discarded</string>
     <string name="title_draft_saved">Draft saved</string>
     <string name="title_ask_send_via">Send message to %1$s via %2$s?</string>