How to select camera like drop down button APP designer?

Hi All,

I am learning to design an app that can select the avaiable camera from computer as fig bellow.

Could you help me or give some guide ?

Thanks !

Answer 1

[Ajay Gajulapally]

Please Ensure you have the add-on: “MATLAB Support package for USB Webcams" installed before following the procedure.

1. Create a property cam in the app designer:

   properties (Access = private)
        cam % Description
   end

2. Create a startupFunction for the app which by default opens webcam 1

Include this code in the function.

   app.cam = webcam(1);
   preview(app.cam);

3. Create a Value Change function for the drop down and update the code:

   function CameraDropDownValueChanged(app, event)
            delete(app.cam);
            value = app.CameraDropDown.Value;
            if value == "Cam 1"
               app.cam = webcam(1);
            else
                app.cam = webcam(2);
            end
            
            preview(app.cam);
    end

4. Now try running the app. Hope this helps!

[Jenifer NG]

thanks you it work for me!