Issue with Switch state in AppDesigner

Question

Jason 2020-1-16

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/500651-issue-with-switch-state-in-appdesigner

评论： Cameron B 2020-1-16

Hello, I am migrating from GUIDE to Appdesigner and can't understand why Im getting an error

I have a switch that I want to change the color of a lamp component:

        % Value changed function: VioletSwitch
        function VioletSwitchValueChanged(app, event)
            value = app.VioletSwitch.Value
            if value=='On'
                app.Lamp_V.Color='#b700ff';
            else
                app.Lamp_V.Color='r';
            end  

This works when the switch is on, but not when the switch is off, I get the following error message which I dont understand

value =
    'Off'
Matrix dimensions must agree.
Error in Spectrometer/VioletSwitchValueChanged (line 174)
            if value=='On'

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Answer 1

Cameron B 2020-1-16

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/500651-issue-with-switch-state-in-appdesigner#answer_410488

编辑：Cameron B 2020-1-16

在 MATLAB Online 中打开

function VioletSwitchValueChanged(app, event)
            value = app.VioletSwitch.Value
            if strcmpi(value,'On') == 1 
                app.Lamp_V.Color='g';
            else
                app.Lamp_V.Color='r';
            end  