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app designer switch problem

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Dick
Dick on 27 Mar 2024
Commented: Dick on 27 Mar 2024
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?

Accepted Answer

Kojiro Saito
Kojiro Saito on 27 Mar 2024
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

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