Introduction to Mixins
Explore how to use Dart mixins to write reusable and modular code by sharing common behaviors across different classes. Understand mixin declaration, their use cases with examples, and enforcing class restrictions for mixin application.
We'll cover the following...
Introduction
Mixins allow Dart code to be reusable across separate classes. It is more efficient to reuse common code from multiple classes that share common behaviors.
A mixin class contains methods used by other classes without being their parent. It allows us to use a class’ code without having to inherit from it. This is how mixins differ from interfaces and abstract classes.
Declaring Mixins
Mixins are declared using the keyword mixin like below:
mixin SharedBehavior {
}
We can understand this with the help of an example of different people with different occupations: artist, engineer, doctor, and sportsman or athlete.
Assume there are common behaviors between different people like sketching, reading, exercising, and boxing.
The above four types of people may share a combination of common behaviors in addition to inheriting a common class Person. So, at a given time, each type of ...