not able to call back didUpdateValueForDescriptor method for desritor
not able to call back didUpdateValueForDescriptor method for desritor
Any context? Or you really expect anyone to answer sentence which even doesn't have start and end (not speaking about almost zero information inside)?
Not sure what you mean. This is not something you call, instead this method is invoked when your app calls the readValueForDescriptor: method. Please check the API reference.