Call class A method from class B using function handle?

Please see below example:
classdef MainClass
properties
Prop1
end
methods
function obj = MainClass()
obj.Prop1 = ClassB;
obj.Prop1.SetMethod(@MyMethod);
end
function MyMethod(obj)
disp('MainClass MyMethod called')
end
end
end
classdef ClassB < handle
properties
UpdateMethod
end
methods
function SetMethod(obj,newMethod)
obj.UpdateMethod = newMethod;
end
function CallUpdateMethod(obj)
obj.UpdateMethod();
end
end
end
>> x = MainClass;
>> x.Prop1.CallUpdateMethod;
Unrecognized function or variable 'MyMethod'.
Error in ClassB/CallUpdateMethod (line 10)
obj.UpdateMethod();
I'd like to call MainClass MyMethod from ClassB however am misunderstanding how this should be done. Any help would be appreciated. Thanks

 采纳的回答

function obj = MainClass()
obj.Prop1 = ClassB;
obj.Prop1.SetMethod(@()obj.MyMethod);
end

3 个评论

Thanks Matt, I couldn't figure this out from the docs. I'm still having an issue. Say MyMethod takes in an argument e.g. function MyMethod(obj, arg1). How should the function handle signature be?
obj.Prop1.SetMethod(@(arg1)obj.MyMethod(arg1))

请先登录,再进行评论。

更多回答(0 个)

类别

帮助中心File Exchange 中查找有关 Linear Algebra 的更多信息

产品

版本

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by