Complete Core Data Guide: From Beginner to Advanced
Complete Core Data Guide: From Beginner to Advanced A Comprehensive Tutorial for iOS Development with Swift Table of Contents Introduction to Core Data Setting Up Core Data in Xcode Core Data Stack Components Data Models and Entities CRUD Operations Fetching Data Relationships Predicates and Sorting 1. Introduction to Core Data What is Core Data? Core Data is Apple's object graph and persistence framework for iOS, macOS, watchOS, and tvOS. Despite common misconceptions, Core Data is not a database but rather an object graph management framework that can persist data to disk using SQLite, XML, or binary formats. Key Benefits Core Data provides automatic memory management for object graphs, undo/redo functionality, lazy loading of data, built-in data validation, schema migration tools, and integration with iCloud. It reduces the amount of code needed to manage the model layer of applications by 50-70% compared to manual implementations. When to Use Core Data Use Core Data when you ...