Скачать или смотреть Delegation in Kotlin - Object Oriented Programming(OOP)

Kotlin and Android Full Course: https://www.udemy.com/course/kotlin-m...

What is Kotlin delegation?

In Kotlin, delegation is a design pattern that allows an object to pass on its responsibilities to another object. This is achieved using the `by` keyword when declaring a class. There are two main types of delegation in Kotlin:

1. *Interface Delegation:* A class can implement an interface by delegating its methods to an instance of another class that implements the same interface. This is done using the `by` keyword followed by the instance of the implementing class.

```kotlin
interface SomeInterface {
fun doSomething()
}

class SomeClass(delegate: SomeInterface) : SomeInterface by delegate
```

2. *Property Delegation:* Kotlin provides a convenient way to delegate the implementation of property accessors (getters and setters) to a separate class. This is useful for code reuse and cleaner design. The `by` keyword is used here as well

Delegation allows for code reuse, separation of concerns, and cleaner class implementations.