Objective-C for Legacy iOS and Enterprise Development
Objective-C remains the language behind millions of lines of production iOS code. If you maintain enterprise apps, work with a legacy codebase, or need to bridge older Objective-C with modern Swift, this track gives you the skills to do it with confidence. You will learn how the language actually works — its runtime, memory model, and design patterns — rather than treating it as an obstacle to route around.
What You Will Learn
The track covers object-oriented programming with Objective-C classes, protocols, and categories; UIKit construction for legacy iOS interfaces; data persistence strategies; and the manual and ARC memory management that defines Objective-C's runtime behavior. You will also work through Swift interoperability using bridging headers and mixed-language targets, networking and Grand Central Dispatch concurrency, enterprise integration patterns, and the security, testing, and deployment practices required for regulated or long-lived apps.
The Learning Path
Twelve courses span A1 through C1. The opening course establishes the development environment and language foundations. Intermediate courses — UIKit Fundamentals for Legacy iOS Apps, Data Persistence in Objective-C Applications, and Objective-C Memory Management Deep Dive — build the skills needed to read and extend real production code. The track then shifts to modernization: Navigating and Modernizing Legacy Objective-C Codebases and Objective-C and Swift Interoperability prepare you to work in mixed codebases. The final four C1 courses — Advanced Enterprise Integration Patterns, Optimizing Performance and Debugging Legacy Apps, Security, Testing, and Deployment for Enterprise iOS, and Advanced Refactoring and Long-Term Maintenance — address the concerns that matter most in professional settings.
How It Works
Each course is split into short, hands-on lessons you complete in the built-in code editor with real-time feedback. An AI tutor is available whenever you get stuck, so you can move through dense topics like memory management or bridging headers without losing momentum.
