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How can I change the icon of my AppDesigner-produced GUIs?

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I would like to easily distinguage my GUI from the figures when pressing Alt+Tab so I can access it faster. Now when I run the GUIs they have the same icon as a regular figure...
Marc McLean
Marc McLean on 19 Apr 2019
How do you change the icon in the upper left of the .mlappp GUI launched from AppDesigner?

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Accepted Answer

Cris LaPierre
Cris LaPierre on 29 Oct 2020
Starting with R2020b, you can now specify custom icons for UI figure windows and toolbar push and toggle tools. See the release notes here.

More Answers (3)

li li
li li on 11 Dec 2021
Edited: li li on 11 Dec 2021
R2020b OR Last version
function startupFcn(app)
app.uifigure .Icon='logo.png';

Cris LaPierre
Cris LaPierre on 20 Apr 2019
Edited: Cris LaPierre on 29 Oct 2020
R2020b update: See this answer.
  1 Comment
Micke Malmström
Micke Malmström on 5 Mar 2020
Note that I dont want to change the icon of the Matlab application (which "this answer" says you cant and which is understandable). I only want to change the icon of one particular figure window, so that I can find it easily when I have >25 figures open at the same time.

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Robert on 29 Oct 2020
Add this to your startupFcn:
t = 0;
tMax = 5;
dt = 0.1;
while ~isfield(struct(struct(app.UIFigure).Controller), 'PlatformHost') && t < tMax
% Keep waiting until the window is found.
t = t + dt;
win = struct(struct(struct(app.UIFigure).Controller).PlatformHost).CEF;
win.Icon = 'C:\Folder\MyIcon.ico';
Of course, you may have renamed the UIFIgure property of your app.
In R2016b and older, replace 'PlatformHost' with 'Container'.


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