Learn OBJECTIVE-C with Real Code Examples

Defining classes and methods

Implementing delegate patterns

Using categories to extend functionality

Creating simple iOS/macOS apps

Interfacing Objective-C with C/C++ code

Check header imports and class visibility

Ensure ARC settings are consistent

Verify proper selector usage

Debug memory leaks with Instruments

Resolve framework linking issues

Write unit tests with XCTest

Test delegate and data source methods

Validate UI and functional workflows

Profile for performance bottlenecks

Check memory management via Instruments

macOS apps via Mac App Store

iOS apps via App Store or TestFlight

Frameworks/libraries for internal use

Command-line tools on macOS

Enterprise distribution for iOS/macOS

Xcode IDE

Clang/LLVM compiler

Instruments for performance analysis

Cocoa and Cocoa Touch frameworks

Third-party libraries via CocoaPods or Swift Package Manager

C and C++ code integration

Swift interoperability in mixed projects

Apple system frameworks (Foundation, UIKit, AppKit)

Networking, graphics, and audio libraries

Unit testing frameworks like XCTest

Use Xcode templates and snippets

Leverage Interface Builder for UI design

Regularly refactor to maintain readability

Automate builds and tests with Xcode schemes

Use CocoaPods or Swift Package Manager for dependencies

Debug ARC and memory issues

Integrate Objective-C with Swift in mixed projects

Refactor legacy code for maintainability

Implement dynamic runtime features effectively

Optimize performance in system-level apps