Setting Up Xcode for Objective-C
Configure Xcode for Objective-C development, create your first project, and navigate the project structure.
Setting Up Xcode for Objective-C is a free Objective-C iOS Development for Legacy & Enterprise Apps lesson on CoddyKit — lesson 3 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the Objective-C iOS Development for Legacy & Enterprise Apps learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.
Meet Xcode: Your iOS IDE
Xcode is Apple's all-in-one IDE: you write code, design UI, debug, and ship to the App Store, all from one tool.
Download & Install Xcode
Grab Xcode free from the Mac App Store. Just note it is 30+ GB, so clear some disk space first.
Your First Project: Setup
Launch Xcode and choose Create a new Xcode project — or File > New > Project if it is already open.
Selecting Project Template
Pick the iOS > App template. It scaffolds a single view controller — the perfect minimal base for learning.
Name Your App & Configure
Configure your project: Product Name and Organization Identifier form your Bundle Identifier. Crucially, set Language to Objective-C.
Exploring Project Structure
Xcode opens with the Project Navigator on the left, listing files like AppDelegate, SceneDelegate, ViewController, main.m, and the storyboard.
The App's Entry Point: main.m
Every app starts at main.m, the entry point — just like main() in C. It boots the app object and your app delegate.
#import <UIKit/UIKit.h>
#import "AppDelegate.h"
int main(int argc, char * argv[]) {
NSString * appDelegateClassName;
@autoreleasepool {
// Setup code that might create objects goes here.
appDelegateClassName = NSStringFromClass([AppDelegate class]);
}
return UIApplicationMain(argc, argv, nil, appDelegateClassName);
}App & Scene Delegates
The App Delegate manages your whole app lifecycle; the Scene Delegate (iOS 13+) manages each individual window or scene.
UI: View Controllers & Storyboards
Your UI lives in View Controllers (the code for one screen) and the storyboard, a visual editor for laying out elements.
Build & Run on a Simulator
To see your app, pick a simulator like iPhone 15 Pro and hit Run. Xcode builds and launches it as a virtual iPhone on your Mac.
Quick Check: Xcode Setup
Let's test your understanding of setting up an Objective-C project in Xcode.
Recap: Your Xcode Journey Begins
Recap: you installed Xcode, created an Objective-C app, met key files like main.m and the delegates, and ran it on a simulator.
Frequently asked questions
Is the “Setting Up Xcode for Objective-C” lesson free?
Yes — the full text of “Setting Up Xcode for Objective-C” is free to read here on the web, and the Objective-C iOS Development for Legacy & Enterprise Apps course includes 4 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the Objective-C iOS Development for Legacy & Enterprise Apps course, upgrade to CoddyKit PRO.
What will I learn in “Setting Up Xcode for Objective-C”?
Configure Xcode for Objective-C development, create your first project, and navigate the project structure. You practise Objective-C iOS Development for Legacy & Enterprise Apps with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start Objective-C iOS Development for Legacy & Enterprise Apps?
No prior experience is required. Objective-C iOS Development for Legacy & Enterprise Apps on CoddyKit is structured for beginners through advanced learners; this is — lesson 3 of 4, so you can start here or from the beginning and move at your own pace.
How long does the “Setting Up Xcode for Objective-C” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this Objective-C iOS Development for Legacy & Enterprise Apps lesson?
Yes. Every Objective-C iOS Development for Legacy & Enterprise Apps lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- Introduction to Objective-C
- Basic Syntax and Data Types
- Setting Up Xcode for Objective-C
- Working with NSString and Foundation Types