iOS Persistence and Core Data Simple PersistenceLearn about simple persistence and how to save small pieces of data, like user preference, using NSUserDefaults.iOS File System and SandboxingLearn about the iOS File System, the “sandbox”, and how to access these files using NSFileManager.Introducing Core DataExplore what a data layer is, and how to convert a non-Core Data app to have a Core Data model.The Core Data StackSet up the classes we need to get Core Data up and running so that we can create, save, and delete model objects.Simpler Code with Core DataEnable user interfaces to reactively update whenever the model changes.Rounding Out Core DataSafely migrate user data between versions, and move slow work to the background.CompanyAbout UsWhy Udacity?BlogIn the NewsJobs at UdacityBecome a MentorPartner with UdacityResourcesCatalogCareer OutcomesHelp and FAQScholarshipsResource CenterFeatured ProgramsBusiness AnalyticsSQLAWS Cloud ArchitectData AnalystIntro to ProgrammingDigital MarketingSelf Driving Car EngineerOnly at UdacityArtificial IntelligenceDeep LearningDigital MarketingFlying Car and Autonomous Flight EngineerIntro to Self-Driving CarsMachine Learning EngineerRobotics Software EngineerAI Master’sMaster of Business AdministrationMaster of Science in AIUdacity SchoolsSchool of Animation and Game DevelopmentSchool of Artificial IntelligenceSchool of Autonomous SystemsSchool of BusinessCareer ResourcesSchool of Cloud ComputingSchool of CybersecuritySchool of Data ScienceSchool of DevOpsSchool of Executive LeadershipSchool of Product ManagementSchool of Programming and Development