app designer switch problem

Hello community!

I want to use a switch to control the UI theme, like light mode and dark mode. But I can only switch it once, the second time I click, no response. Here are the codes:

% Value changed function: Switch2

function Switch2ValueChanged(app, event)

value = app.Switch2.Value;

if value

app.UIFigure.Color = [0.5, 0.5, 0.5];

else

app.UIFigure.Color = [1, 1, 1];

end

end

related photos, before I click:

after I click:

However, it can only work once. Can you help me, please?

Answer 1

[Kojiro Saito]

Items property of app.Switch2 is 'On' and 'Off' in this app, so you need to change the if condition to value == "On".

function Switch2ValueChanged(app, event)
    value = app.Switch2.Value;
    if value == "On"
        app.UIFigure.Color = [0.5, 0.5, 0.5];
    else
        app.UIFigure.Color = [1, 1, 1];
    end
end

[Dick]

Fantastic! Problem solved.

Best Wishes.@Kojiro Saito