Add dev options to set swXdp

Change-Id: Ibe88e2b1a2e818838baf452b6da204fc9e004a42
Fixes: 27734698

src/com/android/settings/CustomEditTextPreference.java

@@ -105,6 +105,7 @@ public class CustomEditTextPreference extends EditTextPreference {
 
         @Override
         public void onDialogClosed(boolean positiveResult) {
+            super.onDialogClosed(positiveResult);
             getCustomizablePreference().onDialogClosed(positiveResult);
         }