Fix button visibility on connect

Bug: 5750846
Change-Id: I1f31308a21f7f6876f12eb4f1ab45ecd1bc74092

src/com/android/settings/wifi/WifiConfigController.java

@@ -271,7 +271,7 @@ public class WifiConfigController implements TextWatcher,
     }
 
     /* show submit button if password, ip and proxy settings are valid */
-    private void enableSubmitIfAppropriate() {
+    void enableSubmitIfAppropriate() {
         Button submit = mConfigUi.getSubmitButton();
         if (submit == null) return;
         boolean enabled = false;

src/com/android/settings/wifi/WifiDialog.java

@@ -56,6 +56,9 @@ class WifiDialog extends AlertDialog implements WifiConfigUiBase {
         setInverseBackgroundForced(true);
         mController = new WifiConfigController(this, mView, mAccessPoint, mEdit);
         super.onCreate(savedInstanceState);
+        /* During creation, the submit button can be unavailable to determine
+         * visibility. Right after creation, update button visibility */
+        mController.enableSubmitIfAppropriate();
     }
 
     @Override