Custom subclass of App Designer Component doesn't show up

Hi,

When constructing a custom UI component whose class inherits an App-Designer-Components class, the constructed component doesn't show up.

I can't figure out why, any ideas?

Or maybe, App-Designer-Components class were initilally thought to be sealed?

Thank you very much! ;)

FZ

test script:

hf = uifigure();
hb = UIButtonSubClass('Parent', hf);

custom class:

classdef UIButtonSubClass < matlab.ui.control.Button
    properties
        additionalProperty
    end
    
    methods
        function this = UIButtonSubClass(varargin)
            % constructor
            this = [e-mail](varargin{:});
            this.additionalProperty = 'something';
        end
    end
end

R2019b

[Nicolas B.]

Looking to my test, MATLAB does not accept that a uifigure has a non-native MATLAB class as a children. So unfortunately, it's not possible to do what you want.

However, as alternative solution, you can freely use the property UserData of any MATLAB graphical class.