How can I set a minimum window size for an app developed in app designer?

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I am currently working on a app in app designer and I've been using the SizeChangedFcn call back to code for resizing the components. I want to set a minimum window size so it cannot be resized smaller than a certain size. I've been trying methods such as the one mentioned here ( but it's not working, If someone knows how to do this, please can you help me?

Accepted Answer

Adam Danz
Adam Danz on 26 Jul 2021
Edited: Adam Danz on 26 Jul 2021
  1. Set the minimum size as an app property named minSize defined by 1x2 vector describing the minimum [width, height] (see how to define an app property). Example: minSize = [400, 300];
  2. Set the SizeChangedFcn to the two lines below. The second line assures that the App stays on your the screen.
Don't forget that AutoResizeChildren needs to be set to off to use SizeChangedFcn.
function UIFigureSizeChanged(app, event)
app.UIFigure.Position(3:4) = max(app.UIFigure.Position(3:4), minSize);

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