Create outbox on setup

To make sure the event listener is started

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

@@ -599,20 +599,9 @@ public class FragmentCompose extends Fragment {
                     if (draft.to == null && draft.cc == null && draft.bcc == null)
                         throw new MessagingException(getContext().getString(R.string.title_to_missing));
 
-                    // Get outbox
-                    EntityFolder outbox = folder.getOutbox();
-                    if (outbox == null) {
-                        outbox = new EntityFolder();
-                        outbox.name = "OUTBOX";
-                        outbox.type = EntityFolder.TYPE_OUTBOX;
-                        outbox.synchronize = false;
-                        outbox.after = 0;
-                        outbox.id = folder.insertFolder(outbox);
-                    }
-
                     // Build outgoing message
                     EntityMessage out = new EntityMessage();
-                    out.folder = outbox.id;
+                    out.folder = folder.getOutbox().id;
                     out.identity = draft.identity;
                     out.replying = draft.replying;
                     out.thread = draft.thread;

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

@@ -37,6 +37,8 @@ import android.widget.ProgressBar;
 import android.widget.TextView;
 
 import java.util.List;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
 
 public class FragmentSetup extends Fragment {
     private Button btnAccount;
@@ -48,6 +50,8 @@ public class FragmentSetup extends Fragment {
     private TextView tvIdentityDone;
     private TextView tvPermissionsDone;
 
+    private ExecutorService executor = Executors.newCachedThreadPool();
+
     private static final String[] permissions = new String[]{
             Manifest.permission.READ_CONTACTS
     };
@@ -151,7 +155,7 @@ public class FragmentSetup extends Fragment {
         tvIdentityDone.setVisibility(View.INVISIBLE);
         tvPermissionsDone.setVisibility(View.INVISIBLE);
 
-        DB db = DB.getInstance(getContext());
+        final DB db = DB.getInstance(getContext());
 
         db.account().liveAccounts(true).observe(this, new Observer<List<EntityAccount>>() {
             @Override
@@ -173,6 +177,22 @@ public class FragmentSetup extends Fragment {
 
         onRequestPermissionsResult(0, permissions, grantResults);
 
+        // Creat outbox
+        executor.submit(new Runnable() {
+            @Override
+            public void run() {
+                EntityFolder outbox = db.folder().getOutbox();
+                if (outbox == null) {
+                    outbox = new EntityFolder();
+                    outbox.name = "OUTBOX";
+                    outbox.type = EntityFolder.TYPE_OUTBOX;
+                    outbox.synchronize = false;
+                    outbox.after = 0;
+                    outbox.id = db.folder().insertFolder(outbox);
+                }
+            }
+        });
+
         return view;
     }