In Flutter, you can insert various types of code in a mixin and add it with the with
keyword. Here are some examples:
Functions
You can define functions in a mixin that can be used by classes that inherit from it.
mixin MyMixin on Object {
void myFunction() {
print('Hello from mixin!');
}
}
class MyClass with MyMixin {}
Properties
You can define properties in a mixin that can be used by classes that inherit from it.
mixin MyMixin on Object {
int myProperty = 10;
}
class MyClass with MyMixin {}
Methods
You can define methods in a mixin that can be used by classes that inherit from it.
mixin MyMixin on Object {
void myMethod() {
print('Hello from mixin!');
}
}
class MyClass with MyMixin {}
Operators
You can define operators in a mixin that can be used by classes that inherit from it.
mixin MyMixin on Object {
int get myProperty => 10;
}
class MyClass with MyMixin {}
Constructors or something like an abstract super class
You can define constructors in a mixin that can be used by classes that inherit from it.
mixin MyMixin on Object {
MyMixin({required this.myProperty}) : myProperty = 10;
int myProperty;
}
class MyClass with MyMixin {}
Abstract methods
You can define abstract methods in a mixin that must be implemented by classes that inherit from it.
mixin MyMixin on Object {
void myAbstractMethod();
}
class MyClass with MyMixin {
@override
void myAbstractMethod() {
print('Hello from class!');
}
}
Static properties and methods
You can define static properties and methods in a mixin that can be used without creating an instance of the class.
mixin MyMixin on Object {
static int myStaticProperty = 10;
static void myStaticMethod() {
print('Hello from mixin!');
}
}
class MyClass with MyMixin {}
Getters and setters
You can define getters and setters in a mixin that can be used by classes that inherit from it.
mixin MyMixin on Object {
int get myGetter => 10;
set mySetter(int value) => this.myProperty = value;
int myProperty;
}
class MyClass with MyMixin {}
These are some examples of the types of code you can insert in a mixin and add it with the with
keyword. Check out more Flutter articles here and products here