How to handle web-app data sync with iPhone Fetched Results Controller

You can create a separate NSManagedObjectContext to use during your syncing operation. 退房 TopSongs sample project. 它使用CD和 NSOperation to perform the refresh on a separate thread. When you save in your syncing context notifications will be posted which you can use to signal that you need to update your view. 登记 NSManagedObjectContextDidSaveNotification in your viewController that has the FRC.