MATLAB: How to call an GUI created using App Designer with input argument

appdesignerargumentsinputMATLABmlappoutput

How to make apps created using App Designer accept input arguments or return outputs?

Best Answer

In R2017b, App Designer supports input arguments for apps. To add input arguments to an app, open the app in App Designer and click *Code View*. Then click *App Input Arguments*

in the *Editor* tab.

For the detail, please refer following documentation.

http://www.mathworks.com/help/matlab/creating_guis/app-designer-startup-function.html?lang=en#mw_03cf51bb-739e-414e-a71b-ac880b736cfa

If you use R2017a or previous version, please refer following workaround:

A workaround is to create a public function in your app (use the "+ Function" in Code View and choose the "public" option) and use that to pass in any "input variables" after the app is created.

For example:

     hApp = myapp;
     MySetupFunction(hApp, input1, input2);

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MATLAB: Plotting in App designer

x = 1:10;
y = sin(x);
plot(app.UIAxes,x,y);

MATLAB: Do functions like “linkaxes” or “linkprop” work with uifigure in AppDesigner

As of MATLAB R2020a, the "linkaxes" and "linkprop" functionalities are not supported using uifigure in App Designer. Our development team has been notified of this enhancement, and will consider it for future releases of MATLAB.

In the meantime, starting in MATLAB R2020a, you can use regular Axes within App Designer, and both "linkprop" and "linkaxes" are fully supported by regular axes when used within App Designer. Note that, in order to create a regular axes in App Designer, you need to programmatically call the "axes" command. My recommendation is to create a panel in your App while designing your app, and then use that panel as the parent for the axes.

A simple example about how to use regular Axes in an app written in App Designer is as follows:

1. Create a new app.

2. Drag a panel into your app where you want your axes. Set the "Title" to empty to remove the title from the panel. You can also change the border if desired.

3. Add a new property called "Axes", as follows:

properties
    Axes matlab.graphics.axis.Axes
end

4. In the "Code View", create a new Callback for the the UIFigure's StartupFcn.

5. Add this code to the new "startupFcn" (please note that both the signature and the end of the function will be generated automatically by App Designer for you)

function startupFcn(app)
    app.Axes = axes(app.Panel);
end

You can then use "linkaxes" and "linkprop" on the app.Axes property.

Best Answer

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MATLAB: Plotting in App designer

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