This video walks you through creating a very simple Objective-C app that calculates the area and circumference of a circle and prints data to the console.
- [Instructor] You might be asking yourself,…why two programming languages?…The answer's reasonably simple.…Objective-C has been available…for a very long time in the Mac ecosystem.…When iOS was launched, it was the only programming language…available to create iOS apps.…In short, until very recently, if you were an iOS developer,…you did nearly all of your work in Objective-C.…With the release of the more modern Swift language,…Apple is moving toward modern programming practices.…Most new development for iOS is being done in Swift.…
Having said that, just by sheer volume,…you're almost certain to run into Objective-C…at some point while creating iOS apps.…You'll want to know the very basics at least.…You may inherit an app written in Objective-C…that you'll be tasked with maintaining or even extending.…The good news is that you can combine Swift…and Objective-C in a single iOS app.…In addition, most of the frameworks in the iOS language…are written in Objective-C or C.…If you need to dive into the source code…
- iOS platform architecture
- Generic smartphone app life cycle
- iOS app life cycle
- Object-oriented programming (OOP) and Swift
- Inheritance vs. delegation
- Getting started with Xcode
- Xcode vs. Android Studio
- Creating a simple Swift app
Skill Level Beginner
1. Platform Architectures
iOS platform architecture3m 12s
2. App Life Cycle
3. Programming Language
4. Development Tools
5. Build an App
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