Jon Rose questions

Jon Rose answers

• Core Data Save Error on iOS 10: Unresolved error Error Domain=NSCocoaErrorDomain Code=133020
• iOS Core Data Merge Policy - NSMergeByPropertyStoreTrumpMergePolicy
• Data not persistent in Core Data when app re-launches
• fetchBatchSize and cache in NSFetchedResultsController ignored
• In NSManagedObjectContextObjectsDidChangeNotification what is the difference between NSUpdatedObjectsKey and NSRefreshedObjectsKey
• Merge conflict when multiple core data inserts are dispatched to NSPersistentContainer using performBackgroundTask
• Swift 3 - Saving images to Core Data
• iOS: crash if sharing with "Message" option
• How to speed up updating relationship among tables, after one or both tables are already saved?
• How to writeValue forCharacteristic with response AND read response BLE