Profile Photo
WWDC 2019 Session 230 (Making Apps with Core Data) introduced a new Core Data feature, derived attributes. In a demo of the feature a postCount attribute was added to an entity, with the derived expression of "posts.@count". As far as I can tell the demo only worked because the context was "fresh". If you make any changes to a context, derived… (Show more)
in Core Data
Profile Photo
I'm trying to store a 2 separated Strings (73067 bytes) and (280628 bytes) to User Defaults, in older iOS versions just work fine, but in iOS 13, i can't save this data.     This is how i save the data:   UserDefaults.standard.set(myData1, forKey: KEY_MY_DATA_1) UserDefaults.standard.synchronize()     UserDefaults.standard.set(myData2, forKey:… (Show more)
in iOS 13 beta
Profile Photo
I made new project on Xcode 11 beta 7 and just run app on simulator and go back to home screen. Then debugger shows the message below, although I didn't implement codes related background task.   Can't end BackgroundTask: no background task exists with identifier 1 (0x1), or it may have already been ended. Break in… (Show more)
in iOS 13 beta