Objective-C for Swift Developers (Udacity)

In the course, students will write classes and add functionality to classes by writing and calling methods. After learning some basic Objective-C syntax, students will examine and break down an app written in Objective-C and rewrite it in Swift. The course will conclude with a review of and practice with the most common challenges for interoperability between Objective-C and Swift.

What You Will Learn

Lesson 1
Objective-C and Swift, Compare and Contrast

• Learn the distinguishing language features of Objective-C.
• Compare and contrast Objective-C and Swift language features.
• Practice answering interview questions about language features.

Lesson 2
Writing Classes

• Familiarize yourself with Objective-C syntax.
• Write some classes and properties from scratch.
• Build a simple Objective-C program with classes.

Lesson 3
Adding Functionality to a Class: Methods and Messages

• Master how to write and call methods in Objective-C.
• Learn basic control flow syntax.
• Build a functioning rock paper scissors game.

Lesson 4
Migrate an App from Objective-C to Swift: Part I

• Learn how to write custom classes.
• Incorporate third party frameworks and extensions.
• Begin porting an existing Objective-C project into Swift.

Lesson 5
Migrate an App from Objective-C to Swift: Part II

• Persist data with NSCoder and NSKeyedArchiver.
• Implement navigation with a collection view.
• Finish porting an existing Objective-C project into Swift.

Lesson 6
Common Interoperability Challenges

• Facilitate communication between the languages of iOS.
• Add functionality to a mixed language project.
• Complete a set of coding challenges to sharpen interop skills.