What does a delegate do in Swift? What is one-to-one communication? Delegates are a common component in Swift, and understanding how to properly implement a delegate pattern is a key skill for any Swift developer. The topics discussed in this course will build on your knowledge of protocols and classes in Swift and help you understand how you can allow a class to hand off some of its responsibilities to instances of another class.
In this course on Swift: Delegations, you will learn about delegates in Swift. We will explain what delegates are, set up a delegate project, and review how to implement delegates in Swift. By the end of this course, you will have the knowledge and skills you need to delegate actions and implement delegate patterns in your code.
Learning Objectives
- Explain how to set up a delegate in Swift
- Discuss delegate implementation in Swift
Skills you’ll gain
Delegation SkillsSwift (Programming Language)What You'll Learn
- Explain what delegates are and how they enable one-to-one communication in Swift
- Set up a delegate project in Swift
- Implement the delegate pattern in your Swift code
- Allow a class to hand off some of its responsibilities to instances of another class
- Apply your knowledge of protocols and classes to delegate actions
Key Takeaways
- Delegates are a common component in Swift, and understanding how to properly implement a delegate pattern is a key skill for any Swift developer.
- The delegate pattern allows a class to hand off some of its responsibilities to instances of another class.
- This course builds on existing knowledge of protocols and classes in Swift.
- By the end of the course, you will have the knowledge and skills needed to delegate actions and implement delegate patterns in your code.
Frequently Asked Questions
What will I learn in this course?
You will learn what delegates are, how to set up a delegate project in Swift, and how to implement delegates, so you can delegate actions and implement delegate patterns in your code.
Who is this course for?
It is for Swift developers, as understanding how to properly implement a delegate pattern is described as a key skill for any Swift developer.
What prior knowledge do I need?
The course builds on your knowledge of protocols and classes in Swift.
What topics or lessons does the course cover?
The course covers three lessons: What Are Delegates?, Setting Up Our Delegate Project, and Implementing the Delegate.
What skills does this course develop?
It develops delegation skills and skills in the Swift programming language.
Transcript
Show transcript (free preview lesson)
Transcript of the free preview lesson. Remaining lessons unlock with the full course.
Hi, my name is Mark Nair, and in these lessons, you'll learn about delegates in Swift and the delegate pattern. We'll talk about delegates and then we'll set up a small project and implement a delegate inside of it. Delegation in Swift is very, very common. The pattern is a one-to-one communication pattern, and it's just like how you delegate something in the real world. So let's say you're running a restaurant. You certainly can't be running around prepping the meals, cooking, waiting on tables, serving the food, fixing the work schedules, and cleaning up at the end of the night. Well, you could, but you'll run yourself into the ground really quickly. So you delegate some of those responsibilities to other people. We do the same thing in our code. So delegation is a design pattern that lets a class or structure hand off, or in this case delegate, some of the responsibilities to an instance of another type. Training pattern is implemented by defining a protocol. Now the protocol is the thing that will give us the blueprint or the steps that we have to follow for the pattern to complete. So what we'll do is set up a project in playgrounds right here, and we'll walk through how classes talk to each other, how that sort of inheritance works, but then how we communicate backward with those instances, and then you'll see how the delegate really comes in handy. Thanks for watching, stay tuned for the next lesson where we'll set up our delegate project.
Learn on the Go
Take your learning anywhere — the KnowledgeCity mobile app lets you watch lessons on the go.