App Designer button callback

2019 4 2
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更新时间：2020 2 21
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function GOButtonPushed(app, event)
app.Lamp.Color = 'yellow';
% Some long computation.
app.Lamp.Color = 'green';
end
If I have the above code the lamp never turns yellow. It seems like the UI doensn't refresh until the entire callback finishes.
Is there a way to fix this?

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Rik
Rik 2019-4-2

0 个投票

You can force a graphics update with drawnow, or by introducing a small pause (in general I see people using pause(0.01) or a similar amount of time). Either will flush the queue of graphics updates.

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Evan Bates
Evan Bates 2020-2-21
Is this still the solution? I have the same problem.
Rik
Rik 2020-2-21
I would expect so. Have you tried it?

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