Design Patterns in Swift

This repository is part of the Refactoring.Guru project.

It contains Swift examples for all classic GoF design patterns.

There are two examples for each of the patterns:

• Conceptual examples illustrate the internal structure of a pattern, explained with detailed comments.

• RealWorld examples illustrate how patterns can be used in real-world Swift applications.

Requirements

For the best experience, we recommend working with examples with Swift 5 and Xcode IDE.

Usage

For the sake of simplicity, we tried to limit the scope of these examples to the code, related to the actual patterns. That's why didn't implement full-blown Swift apps, accompanied with Run targets. Instead, our examples are packaged as unit tests, where each Unit Test target executes a specific example of a pattern.

To run an example, browse it in the project directory, select the Unit Test scheme and launch the example.

FAQ

1. What is the Client Code?

Client means client of classes, defined as part of a pattern, which is merely a caller of the given methods or a user of the given classes. In other words, it's the part of your application's code that uses the pattern's classes.

2. I don't understand the roles you're referring to in RealWorld examples.

Take a look at the structural example first. There you'll find detailed descriptions of each class in a pattern, its role, and connection to other classes.

License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Credits

"Design Patterns in Swift" were created by Maxim Eremenko for Refactoring.Guru.