This video presents an overview of inheritance, used heavily in Android apps, and delegation, used heavily in iOS apps
- [Instructor] In computer science, design patterns…are general solutions to a recurring problem.…They aren't code, but rather like templates…that can be translated into code.…In short, they describe how to solve a problem…from a high level.…Android and iOS utilize two different design patterns…when creating apps.…Android relies heavily on inheritance,…while iOS makes use of delegation.…Inheritance is an object-oriented design pattern…where classes fall into a strict hierarchy.…Each class accepts its position in the hierarchy,…and the path from one class to another is strictly defined.…
Each class in an inheritance-based model has a superclass.…A superclass sits above the given class in the hierarchy,…and in general, is less concrete and more abstract.…Subclasses inherit data and behavior from superclasses.…Subclasses are more concrete…and less abstract than superclasses.…As you progress further down the hierarchy,…information is added to subsequent classes.…In an inheritance-based model,…a subclass is an instance of a superclass.…
- 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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