Duplicating lines of menu/toolbar when running the APP

Hi all,

Recently I had an issue with my MATLAB app. Everytime I open the app, it added lines of toolbars and menu to itself. Deleting them and save will fix the issue for one time but when I open the app next time, it again automatically adds lines of toolbars and menu to itself.

Did anyone encounter similar issue? And what's your solution to it?

Thanks everyon!

Best

Zach

Answer 1

[Anushka]

Hi @Yan Zihan,

I was able to reproduce this behaviour at my end. Based on my observations, you can follow the mentioned workaround to stop duplication of toolbars and menus:

1. Open the app in MATLAB App Designer.
2. Go to 'Code View' and inspect the 'StartupFcn' or any other initialization functions for code that adds toolbars or menus. For example, you can look for lines like:

uimenu(f, 'Text', 'New Menu');
uitoolbar(f);

In case you find such code, you can either remove it or modify it to ensure it only runs once.

3. If you want to keep the tool bar and menu creation code, implement a 'flag' to ensure it executes only once:

properties (Access = private)
    MenuCreated = false;
end

function startupFcn(app)
    if ~app.MenuCreated
        createMenuAndToolbar(app);
        app.MenuCreated = true;
    end
end

By following these steps, your app should no longer add duplicate toolbars and menus each time it opens.

Hope this helps!