Setup: I'm trying to do a lightweight Core Data migration in my app. I added a new Core Data model version and added the new improvements (added 9 attributes to existing entities, 2 new entities, relationships between the new and existing entities).
Issue: Switching from a build with the old database to the new one causes the app to have no data. But once I quit the app and come back, the data is all there (I'm assuming it was just being migrated).
Question: Is there a way to know when the Core Data is starting a migration (to let the users know) and when the migration is finished (to refresh their view with the new data)? I've done so much searching this past couple of weeks and have not come with much.
Thank you in advance!
