Getting inputs from App designer and saving them at a mat file or .mfile

Question

Nwasinachi 2022-11-17

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1854158-getting-inputs-from-app-designer-and-saving-them-at-a-mat-file-or-mfile

评论： Nwasinachi 2022-11-18

I am currently using Tab Group in App designer, and there are several radio button and list boxes that i need the inputs to put into a struct, but i am unsure about how to go about it. Everything i do breaks the App. How do i grab the inputs from the UI via class object?

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Answer 1

Eric Delgado 2022-11-18

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1854158-getting-inputs-from-app-designer-and-saving-them-at-a-mat-file-or-mfile#answer_1103368

在 MATLAB Online 中打开

app1.mlapp

Hey... I made an app in R2021b showing how to keep the main info of selected buttongroup and listbox objects. You should use "Tag" property a lot! :)

Hope it's helpful.

app.myStruct = struct('Type', {}, 'ParentTag', {}, 'SelectedObjectText', {});
hObj = [];
for ii = 1:numel(app.Tab.Children)
    if ismember(app.Tab.Children(ii).Type, {'uibuttongroup' , 'uilistbox'})
        hObj = [hObj; app.Tab.Children(ii)];
    end
end
for ii = 1:numel(hObj)
    switch hObj(ii).Type
        case 'uibuttongroup'
            selected = hObj(ii).SelectedObject.Text;
        case 'uilistbox'
            selected = hObj(ii).Value;
    end
    app.myStruct(end+1) = struct('Type', hObj(ii).Type, ...
                                 'ParentTag', hObj(ii).Tag, ...)
                                 'SelectedObjectText', selected);
end

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Nwasinachi 2022-11-18

在 MATLAB Online 中打开

Dummy.mlapp

So you created a pushbutton for the struct ? I am trying to pull the class objects directly into an array. I have included the code and the app.

lassdef Dummy < matlab.apps.AppBase
    % Properties that correspond to app components
    properties (Access = public)
        UIFigure             matlab.ui.Figure
        TabGroup             matlab.ui.container.TabGroup
        WelcomeTab           matlab.ui.container.Tab
        TextArea             matlab.ui.control.TextArea
        TextAreaLabel        matlab.ui.control.Label
        NEXTButton_4         matlab.ui.control.Button
        AgeTab               matlab.ui.container.Tab
        ListBox              matlab.ui.control.ListBox
        TextArea2            matlab.ui.control.TextArea
        TextArea2Label       matlab.ui.control.Label
        NEXTButton           matlab.ui.control.Button
        GenderTab            matlab.ui.container.Tab
        NEXTButton_2         matlab.ui.control.Button
        ListBox_3            matlab.ui.control.ListBox
        ListBox_3Label       matlab.ui.control.Label
        TextArea3            matlab.ui.control.TextArea
        TextArea3Label       matlab.ui.control.Label
        LanguageTab          matlab.ui.container.Tab
        NEXTButton_3         matlab.ui.control.Button
        ListBox_4            matlab.ui.control.ListBox
        ListBox_4Label       matlab.ui.control.Label
        TextArea4            matlab.ui.control.TextArea
        TextArea4Label       matlab.ui.control.Label
        InstructionsTab      matlab.ui.container.Tab
        NEXTButton_5         matlab.ui.control.Button
        TextArea5            matlab.ui.control.TextArea
        TextArea5Label       matlab.ui.control.Label
        TestsoundsTab        matlab.ui.container.Tab
        NEXTButton_6         matlab.ui.control.Button
        PresstoplayButton_2  matlab.ui.control.Button
        ButtonGroup_2        matlab.ui.container.ButtonGroup
        NOButton_2           matlab.ui.control.RadioButton
        YESButton_2          matlab.ui.control.RadioButton
        TextArea6_2          matlab.ui.control.TextArea
        TextArea6_2Label     matlab.ui.control.Label
        PresstoplayButton    matlab.ui.control.Button
        ButtonGroup          matlab.ui.container.ButtonGroup
        NOButton             matlab.ui.control.RadioButton
        YESButton            matlab.ui.control.RadioButton
        TextArea6            matlab.ui.control.TextArea
        TextArea6Label       matlab.ui.control.Label
        Instruction2Tab      matlab.ui.container.Tab
        Question1Tab         matlab.ui.container.Tab
        Question2Tab         matlab.ui.container.Tab
        Question3Tab         matlab.ui.container.Tab
        Question3Tab_2       matlab.ui.container.Tab
        Question4Tab         matlab.ui.container.Tab
        Question5Tab         matlab.ui.container.Tab
        FinalpageTab         matlab.ui.container.Tab
    end
    
    % Callbacks that handle component events
    methods (Access = private)
        % Code that executes after component creation
        function startupFcn(app)
            
        end
        % Callback function: NEXTButton_4, WelcomeTab
        function ButtonPushed(app, event)
         
            app.TabGroup.SelectedTab = app.AgeTab
           
        end
        % Value changed function: ListBox
        function ListBoxValueChanged(app, event)
            value = app.ListBox.Value;
            if strcmp(app.ListBox.Value ,'18-28')||strcmp(app.ListBox.Value ,'29-39')||strcmp(app.ListBox.Value,'40-50')||strcmp(app.ListBox.Value,'51-61')...
                    ||strcmp(app.ListBox.Value,'62-72');
              set(app.NEXTButton,'Enable','on');
            end
                        
        end
        % Button pushed function: NEXTButton
        function NEXTButtonPushed(app, event)
            app.TabGroup.SelectedTab = app.GenderTab
           
        end
        % Button pushed function: NEXTButton_2
        function NEXTButton_2Pushed(app, event)
            app.TabGroup.SelectedTab = app.LanguageTab
        end
        % Value changed function: ListBox_3
        function ListBox_3ValueChanged(app, event)
            value = app.ListBox_3.Value;
      
            if strcmp(app.ListBox.Value,'Female')|| strcmp(app.ListBox.Value,'Male')||strcmp(app.ListBox.Value,'Intersex')||strcmp(app.ListBox.Value,'Non-conforming')...
                    ||strcmp(app.ListBox.Value,'Gender-fluid')||strcmp(app.ListBox.Value,'Genderqueer')||strcmp(app.ListBox.Value,'Transgender');
                set(app.NEXTButton_2,'Enable','on');
            end % simple loop that allows the push button to stay disabled until the person selects an option.
        end
        % Button pushed function: NEXTButton_3
        function NEXTButton_3Pushed(app, event)
                        app.TabGroup.SelectedTab = app.InstructionsTab
        end
        % Value changed function: ListBox_4
        function ListBox_4ValueChanged(app, event)
            value = app.ListBox_4.Value;
            if strcmp(app.ListBox.Value ,'One')|| strcmp(app.ListBox.Value ,'Two')|| strcmp(app.ListBox.Value ,'Three')...
                            || strcmp(app.ListBox.Value ,'Four')|| strcmp(app.ListBox.Value ,'Polygot');
                                set(app.NEXTButton_3,'Enable','on');
                            end
        end
        % Button pushed function: NEXTButton_5
        function NEXTButton_5Pushed(app, event)
                                    app.TabGroup.SelectedTab = app.TestsoundsTab
        end
    end
    % Component initialization
    methods (Access = private)
        % Create UIFigure and components
        function createComponents(app)
            % Create UIFigure and hide until all components are created
            app.UIFigure = uifigure('Visible', 'off');
            app.UIFigure.AutoResizeChildren = 'off';
            app.UIFigure.Position = [100 100 1116 480];
            app.UIFigure.Name = 'MATLAB App';
            app.UIFigure.Resize = 'off';
            % Create TabGroup
            app.TabGroup = uitabgroup(app.UIFigure);
            app.TabGroup.AutoResizeChildren = 'off';
            app.TabGroup.Position = [1 1 1116 602];
            % Create WelcomeTab
            app.WelcomeTab = uitab(app.TabGroup);
            app.WelcomeTab.AutoResizeChildren = 'off';
            app.WelcomeTab.Title = 'Welcome';
            app.WelcomeTab.BackgroundColor = [0.502 0.502 0.502];
            app.WelcomeTab.ButtonDownFcn = createCallbackFcn(app, @ButtonPushed, true);
            % Create NEXTButton_4
            app.NEXTButton_4 = uibutton(app.WelcomeTab, 'push');
            app.NEXTButton_4.ButtonPushedFcn = createCallbackFcn(app, @ButtonPushed, true);
            app.NEXTButton_4.BackgroundColor = [0.3922 0.8314 0.0745];
            app.NEXTButton_4.FontSize = 16;
            app.NEXTButton_4.FontWeight = 'bold';
            app.NEXTButton_4.Visible = 'off';
            app.NEXTButton_4.Position = [683 131 100 32];
            app.NEXTButton_4.Text = 'NEXT';
            % Create TextAreaLabel
            app.TextAreaLabel = uilabel(app.WelcomeTab);
            app.TextAreaLabel.HorizontalAlignment = 'right';
            app.TextAreaLabel.Position = [224 376 55 22];
            app.TextAreaLabel.Text = 'Text Area';
            % Create TextArea
            app.TextArea = uitextarea(app.WelcomeTab);
            app.TextArea.FontName = 'Arial Black';
            app.TextArea.FontSize = 16;
            app.TextArea.FontWeight = 'bold';
            app.TextArea.BackgroundColor = [0.502 0.502 0.502];
            app.TextArea.Position = [66 131 761 434];
            app.TextArea.Value = {''; ''; ''; 'Hello Welcome to my World.'; ''; ''; ''; 'Thank you for particpating in this audio test. There will be a set of questions on the next few screens. '; 'You will not be able to proceed to the next phase without making a selction. '; ''; ''; ''; 'Once again thank you particpating.'};
            % Create AgeTab
            app.AgeTab = uitab(app.TabGroup);
            app.AgeTab.AutoResizeChildren = 'off';
            app.AgeTab.Title = 'Age';
            app.AgeTab.BackgroundColor = [0.502 0.502 0.502];
            % Create NEXTButton
            app.NEXTButton = uibutton(app.AgeTab, 'push');
            app.NEXTButton.ButtonPushedFcn = createCallbackFcn(app, @NEXTButtonPushed, true);
            app.NEXTButton.BackgroundColor = [0.3922 0.8314 0.0745];
            app.NEXTButton.FontSize = 16;
            app.NEXTButton.FontWeight = 'bold';
            app.NEXTButton.Enable = 'off';
            app.NEXTButton.Position = [711 162 100 31];
            app.NEXTButton.Text = 'NEXT';
            % Create TextArea2Label
            app.TextArea2Label = uilabel(app.AgeTab);
            app.TextArea2Label.BackgroundColor = [0.502 0.502 0.502];
            app.TextArea2Label.HorizontalAlignment = 'right';
            app.TextArea2Label.Position = [197 470 62 22];
            app.TextArea2Label.Text = 'Text Area2';
            % Create TextArea2
            app.TextArea2 = uitextarea(app.AgeTab);
            app.TextArea2.FontName = 'Arial Black';
            app.TextArea2.FontSize = 16;
            app.TextArea2.FontWeight = 'bold';
            app.TextArea2.BackgroundColor = [0.502 0.502 0.502];
            app.TextArea2.Position = [40 202 795 300];
            app.TextArea2.Value = {'Please choose an age group. You will be unabe to use the next button untill a selection has been made.'; ''; 'This program doesnt allow the user to see the previous page. '; 'So confirm that input is correct.'};
            % Create ListBox
            app.ListBox = uilistbox(app.AgeTab);
            app.ListBox.Items = {'18-28', '29-39', '40-50', '51-61', '62-72', '73-83'};
            app.ListBox.ValueChangedFcn = createCallbackFcn(app, @ListBoxValueChanged, true);
            app.ListBox.FontName = 'Arial Black';
            app.ListBox.FontSize = 16;
            app.ListBox.FontColor = [0.3922 0.8314 0.0745];
            app.ListBox.BackgroundColor = [0.502 0.502 0.502];
            app.ListBox.Position = [40 202 795 169];
            app.ListBox.Value = '51-61';
            % Create GenderTab
            app.GenderTab = uitab(app.TabGroup);
            app.GenderTab.AutoResizeChildren = 'off';
            app.GenderTab.Title = 'Gender';
            app.GenderTab.BackgroundColor = [0.502 0.502 0.502];
            % Create TextArea3Label
            app.TextArea3Label = uilabel(app.GenderTab);
            app.TextArea3Label.HorizontalAlignment = 'right';
            app.TextArea3Label.Position = [161 184 62 22];
            app.TextArea3Label.Text = 'Text Area3';
            % Create TextArea3
            app.TextArea3 = uitextarea(app.GenderTab);
            app.TextArea3.Editable = 'off';
            app.TextArea3.FontName = 'Arial Black';
            app.TextArea3.FontSize = 16;
            app.TextArea3.BackgroundColor = [0.502 0.502 0.502];
            app.TextArea3.Position = [66 148 737 390];
            app.TextArea3.Value = {'What gender do you identify as?'; ''; ''; 'You will be unable to use the next button untill a selection has been made.'; 'This program doesnt allow the user to see the previous page. '; 'So confirm that your input is correct.'};
            % Create ListBox_3Label
            app.ListBox_3Label = uilabel(app.GenderTab);
            app.ListBox_3Label.BackgroundColor = [0 0 0];
            app.ListBox_3Label.HorizontalAlignment = 'right';
            app.ListBox_3Label.FontColor = [0.3922 0.8314 0.0745];
            app.ListBox_3Label.Position = [75 328 49 22];
            app.ListBox_3Label.Text = 'List Box';
            % Create ListBox_3
            app.ListBox_3 = uilistbox(app.GenderTab);
            app.ListBox_3.Items = {'Female', 'Male', 'Intersex', 'Non-conforming', 'Gender-fluid', 'Genderqueer', 'Transgender'};
            app.ListBox_3.ValueChangedFcn = createCallbackFcn(app, @ListBox_3ValueChanged, true);
            app.ListBox_3.FontSize = 16;
            app.ListBox_3.FontWeight = 'bold';
            app.ListBox_3.FontColor = [0.3922 0.8314 0.0745];
            app.ListBox_3.BackgroundColor = [0.502 0.502 0.502];
            app.ListBox_3.Position = [75 178 728 172];
            app.ListBox_3.Value = 'Male';
            % Create NEXTButton_2
            app.NEXTButton_2 = uibutton(app.GenderTab, 'push');
            app.NEXTButton_2.ButtonPushedFcn = createCallbackFcn(app, @NEXTButton_2Pushed, true);
            app.NEXTButton_2.BackgroundColor = [0.3922 0.8314 0.0745];
            app.NEXTButton_2.FontSize = 16;
            app.NEXTButton_2.FontWeight = 'bold';
            app.NEXTButton_2.Position = [735 86 100 33];
            app.NEXTButton_2.Text = 'NEXT';
            % Create LanguageTab
            app.LanguageTab = uitab(app.TabGroup);
            app.LanguageTab.AutoResizeChildren = 'off';
            app.LanguageTab.Title = 'Language';
            app.LanguageTab.BackgroundColor = [0.502 0.502 0.502];
            % Create TextArea4Label
            app.TextArea4Label = uilabel(app.LanguageTab);
            app.TextArea4Label.BackgroundColor = [0.502 0.502 0.502];
            app.TextArea4Label.HorizontalAlignment = 'right';
            app.TextArea4Label.Position = [600 227 62 22];
            app.TextArea4Label.Text = 'Text Area4';
            % Create TextArea4
            app.TextArea4 = uitextarea(app.LanguageTab);
            app.TextArea4.Editable = 'off';
            app.TextArea4.FontName = 'Arial Black';
            app.TextArea4.FontSize = 16;
            app.TextArea4.FontWeight = 'bold';
            app.TextArea4.BackgroundColor = [0.502 0.502 0.502];
            app.TextArea4.Position = [53 162 774 387];
            app.TextArea4.Value = {'Language Proficiency'; ''; 'How many languages do you speak?'; ''; 'Please only consider languages that you can speak proficiently and hold a conversation.'; ''; 'Also remember that once you push next you are unable to see this page. Carefully select your anwser. '; ''};
            % Create ListBox_4Label
            app.ListBox_4Label = uilabel(app.LanguageTab);
            app.ListBox_4Label.BackgroundColor = [0.502 0.502 0.502];
            app.ListBox_4Label.HorizontalAlignment = 'right';
            app.ListBox_4Label.FontColor = [0.3922 0.8314 0.0745];
            app.ListBox_4Label.Position = [68 267 49 22];
            app.ListBox_4Label.Text = 'List Box';
            % Create ListBox_4
            app.ListBox_4 = uilistbox(app.LanguageTab);
            app.ListBox_4.Items = {'One', 'Two', 'Three', 'Four', 'Polygot'};
            app.ListBox_4.ValueChangedFcn = createCallbackFcn(app, @ListBox_4ValueChanged, true);
            app.ListBox_4.FontSize = 16;
            app.ListBox_4.FontWeight = 'bold';
            app.ListBox_4.FontColor = [0.3922 0.8314 0.0745];
            app.ListBox_4.BackgroundColor = [0.502 0.502 0.502];
            app.ListBox_4.Position = [53 178 774 143];
            app.ListBox_4.Value = 'One';
            % Create NEXTButton_3
            app.NEXTButton_3 = uibutton(app.LanguageTab, 'push');
            app.NEXTButton_3.ButtonPushedFcn = createCallbackFcn(app, @NEXTButton_3Pushed, true);
            app.NEXTButton_3.BackgroundColor = [0.3922 0.8314 0.0745];
            app.NEXTButton_3.FontSize = 16;
            app.NEXTButton_3.FontWeight = 'bold';
            app.NEXTButton_3.Position = [727 86 100 37];
            app.NEXTButton_3.Text = 'NEXT';
            % Create InstructionsTab
            app.InstructionsTab = uitab(app.TabGroup);
            app.InstructionsTab.AutoResizeChildren = 'off';
            app.InstructionsTab.Title = 'Instructions';
            app.InstructionsTab.BackgroundColor = [0.502 0.502 0.502];
            % Create TextArea5Label
            app.TextArea5Label = uilabel(app.InstructionsTab);
            app.TextArea5Label.BackgroundColor = [0.502 0.502 0.502];
            app.TextArea5Label.HorizontalAlignment = 'right';
            app.TextArea5Label.Position = [234 326 62 22];
            app.TextArea5Label.Text = 'Text Area5';
            % Create TextArea5
            app.TextArea5 = uitextarea(app.InstructionsTab);
            app.TextArea5.FontName = 'Arial Black';
            app.TextArea5.FontSize = 16;
            app.TextArea5.BackgroundColor = [0.502 0.502 0.502];
            app.TextArea5.Position = [53 139 774 386];
            app.TextArea5.Value = {'You  are going to hear different sounds. '; ''; ''; 'For these test sounds you have to respond with a yes or no. '; ''; ''; 'Please pay attention to the sounds and answer appropiately. '; ''; ''; 'you are allowed to replay the sounds 3 times and then you have to respond.'; ''; ''; 'You must choose a response to be able to proceed to the next screen.'};
            % Create NEXTButton_5
            app.NEXTButton_5 = uibutton(app.InstructionsTab, 'push');
            app.NEXTButton_5.ButtonPushedFcn = createCallbackFcn(app, @NEXTButton_5Pushed, true);
            app.NEXTButton_5.BackgroundColor = [0.3922 0.8314 0.0745];
            app.NEXTButton_5.FontSize = 16;
            app.NEXTButton_5.FontWeight = 'bold';
            app.NEXTButton_5.Position = [735 74 100 28];
            app.NEXTButton_5.Text = 'NEXT';
            % Create TestsoundsTab
            app.TestsoundsTab = uitab(app.TabGroup);
            app.TestsoundsTab.AutoResizeChildren = 'off';
            app.TestsoundsTab.Title = 'Test sounds';
            app.TestsoundsTab.BackgroundColor = [0.502 0.502 0.502];
            % Create TextArea6Label
            app.TextArea6Label = uilabel(app.TestsoundsTab);
            app.TextArea6Label.HorizontalAlignment = 'right';
            app.TextArea6Label.FontName = 'Arial Black';
            app.TextArea6Label.FontWeight = 'bold';
            app.TextArea6Label.Position = [196 516 78 22];
            app.TextArea6Label.Text = 'Text Area6';
            % Create TextArea6
            app.TextArea6 = uitextarea(app.TestsoundsTab);
            app.TextArea6.FontName = 'Arial Black';
            app.TextArea6.FontWeight = 'bold';
            app.TextArea6.BackgroundColor = [0.502 0.502 0.502];
            app.TextArea6.Position = [40 501 787 37];
            app.TextArea6.Value = {'Can you hear this sound?'};
            % Create ButtonGroup
            app.ButtonGroup = uibuttongroup(app.TestsoundsTab);
            app.ButtonGroup.AutoResizeChildren = 'off';
            app.ButtonGroup.BackgroundColor = [0.502 0.502 0.502];
            app.ButtonGroup.Position = [40 436 184 58];
            % Create YESButton
            app.YESButton = uiradiobutton(app.ButtonGroup);
            app.YESButton.Text = 'YES';
            app.YESButton.Position = [11 31 45 22];
            app.YESButton.Value = true;
            % Create NOButton
            app.NOButton = uiradiobutton(app.ButtonGroup);
            app.NOButton.Text = 'NO';
            app.NOButton.Position = [11 9 40 22];
            % Create PresstoplayButton
            app.PresstoplayButton = uibutton(app.TestsoundsTab, 'push');
            app.PresstoplayButton.BackgroundColor = [1 0.4118 0.1608];
            app.PresstoplayButton.Position = [330 466 100 22];
            app.PresstoplayButton.Text = 'Press to play';
            % Create TextArea6_2Label
            app.TextArea6_2Label = uilabel(app.TestsoundsTab);
            app.TextArea6_2Label.HorizontalAlignment = 'right';
            app.TextArea6_2Label.FontName = 'Arial Black';
            app.TextArea6_2Label.FontWeight = 'bold';
            app.TextArea6_2Label.Position = [259 354 78 22];
            app.TextArea6_2Label.Text = 'Text Area6';
            % Create TextArea6_2
            app.TextArea6_2 = uitextarea(app.TestsoundsTab);
            app.TextArea6_2.FontName = 'Arial Black';
            app.TextArea6_2.FontWeight = 'bold';
            app.TextArea6_2.BackgroundColor = [0.502 0.502 0.502];
            app.TextArea6_2.Position = [40 339 787 37];
            app.TextArea6_2.Value = {'Can you hear this sound?'};
            % Create ButtonGroup_2
            app.ButtonGroup_2 = uibuttongroup(app.TestsoundsTab);
            app.ButtonGroup_2.AutoResizeChildren = 'off';
            app.ButtonGroup_2.BackgroundColor = [0.502 0.502 0.502];
            app.ButtonGroup_2.Position = [40 267 183 62];
            % Create YESButton_2
            app.YESButton_2 = uiradiobutton(app.ButtonGroup_2);
            app.YESButton_2.Text = 'YES';
            app.YESButton_2.Position = [11 35 45 22];
            app.YESButton_2.Value = true;
            % Create NOButton_2
            app.NOButton_2 = uiradiobutton(app.ButtonGroup_2);
            app.NOButton_2.Text = 'NO';
            app.NOButton_2.Position = [11 13 40 22];
            % Create PresstoplayButton_2
            app.PresstoplayButton_2 = uibutton(app.TestsoundsTab, 'push');
            app.PresstoplayButton_2.BackgroundColor = [1 0.4118 0.1608];
            app.PresstoplayButton_2.Position = [331 288 100 22];
            app.PresstoplayButton_2.Text = 'Press to play';
            % Create NEXTButton_6
            app.NEXTButton_6 = uibutton(app.TestsoundsTab, 'push');
            app.NEXTButton_6.BackgroundColor = [0.3922 0.8314 0.0745];
            app.NEXTButton_6.FontName = 'Arial Black';
            app.NEXTButton_6.Position = [737 71 100 22];
            app.NEXTButton_6.Text = 'NEXT';
            % Create Instruction2Tab
            app.Instruction2Tab = uitab(app.TabGroup);
            app.Instruction2Tab.AutoResizeChildren = 'off';
            app.Instruction2Tab.Title = 'Instruction2';
            app.Instruction2Tab.BackgroundColor = [0.502 0.502 0.502];
            % Create Question1Tab
            app.Question1Tab = uitab(app.TabGroup);
            app.Question1Tab.AutoResizeChildren = 'off';
            app.Question1Tab.Title = 'Question1';
            app.Question1Tab.BackgroundColor = [0.502 0.502 0.502];
            % Create Question2Tab
            app.Question2Tab = uitab(app.TabGroup);
            app.Question2Tab.AutoResizeChildren = 'off';
            app.Question2Tab.Title = 'Question2';
            app.Question2Tab.BackgroundColor = [0.502 0.502 0.502];
            % Create Question3Tab
            app.Question3Tab = uitab(app.TabGroup);
            app.Question3Tab.AutoResizeChildren = 'off';
            app.Question3Tab.Title = 'Question3';
            app.Question3Tab.BackgroundColor = [0.502 0.502 0.502];
            % Create Question3Tab_2
            app.Question3Tab_2 = uitab(app.TabGroup);
            app.Question3Tab_2.AutoResizeChildren = 'off';
            app.Question3Tab_2.Title = 'Question3';
            app.Question3Tab_2.BackgroundColor = [0.502 0.502 0.502];
            % Create Question4Tab
            app.Question4Tab = uitab(app.TabGroup);
            app.Question4Tab.AutoResizeChildren = 'off';
            app.Question4Tab.Title = 'Question4';
            app.Question4Tab.BackgroundColor = [0.502 0.502 0.502];
            % Create Question5Tab
            app.Question5Tab = uitab(app.TabGroup);
            app.Question5Tab.AutoResizeChildren = 'off';
            app.Question5Tab.Title = 'Question5';
            % Create FinalpageTab
            app.FinalpageTab = uitab(app.TabGroup);
            app.FinalpageTab.Title = 'Final page';
            % Show the figure after all components are created
            app.UIFigure.Visible = 'on';
        end
    end
    % App creation and deletion
    methods (Access = public)
        % Construct app
        function app = Dummy
            % Create UIFigure and components
            createComponents(app)
            % Register the app with App Designer
            registerApp(app, app.UIFigure)
            % Execute the startup function
            runStartupFcn(app, @startupFcn)
            if nargout == 0
                clear app
            end
        end
        % Code that executes before app deletion
        function delete(app)
            % Delete UIFigure when app is deleted
            delete(app.UIFigure)
        end
    end
end

Eric Delgado 2022-11-18

Dummy.mlapp

Ok. See app attached.

Nwasinachi 2022-11-18

i have created an empty struct in the properties. i am assuming that was the change you made to the last code.

i guess my question now is would the struct be included in each buttons call back? that i need to save the information for?

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Getting inputs from App designer and saving them at a mat file or .mfile

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Getting inputs from App designer and saving them at a mat file or .mfile

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