Find Selected button in Button Group CallBack

I have a group of 5 buttons (including a dummy one for "none"

In the callback I want to do something based on the selected button.

Here is the default start of the callback:

function ManualRewardsButtonGroupSelectionChanged(app, event)

selectedButton = app.ManualRewardsButtonGroup.SelectedObject;

So why is the selectedButton always 1? I'd like 1 to 5 so I can do the appropriate

switch app.ManualRewardsButtonGroup.NewValue % or what here?

case 1

% Give LA reward

case 2

% Give LB reward

case 3

% Give RA reward

case 4

% Give RA reward

end

Help shows that I could use event.NewValue (since selectedButton doesn't work) but that also returns 1

https://www.mathworks.com/help/matlab/ref/matlab.ui.container.buttongroup-properties.html

Van I set each button to have a different value? (I clicked on the Value check box in the Component but no opportunity to set it. I've even tried assigning Tags though I don't know what they do.

App Designer doesn't set values and doesn't let me do it either

% Create ManualRewardsButtonGroup

app.ManualRewardsButtonGroup = uibuttongroup(app.RewardControls);

app.ManualRewardsButtonGroup.AutoResizeChildren = 'off';

app.ManualRewardsButtonGroup.SelectionChangedFcn = createCallbackFcn(app, @ManualRewardsButtonGroupSelectionChanged, true);

app.ManualRewardsButtonGroup.TitlePosition = 'centertop';

app.ManualRewardsButtonGroup.Title = 'Manual Rewards';

app.ManualRewardsButtonGroup.FontSize = 10;

app.ManualRewardsButtonGroup.Position = [38 6 190 95];

% Create Rew_ALeftButton

app.Rew_ALeftButton = uiradiobutton(app.ManualRewardsButtonGroup);

app.Rew_ALeftButton.Tag = '1';

app.Rew_ALeftButton.Text = 'Rew_A Left';

app.Rew_ALeftButton.FontSize = 10;

app.Rew_ALeftButton.Position = [11 49 73 22];

% Create Rew_ARightButton

app.Rew_ARightButton = uiradiobutton(app.ManualRewardsButtonGroup);

app.Rew_ARightButton.Tag = '2';

app.Rew_ARightButton.Text = 'Rew_A Right';

app.Rew_ARightButton.FontSize = 10;

app.Rew_ARightButton.Position = [101 49 80 22];

% Create Rew_BLeftButton

app.Rew_BLeftButton = uiradiobutton(app.ManualRewardsButtonGroup);

app.Rew_BLeftButton.Tag = '3';

app.Rew_BLeftButton.Text = 'Rew_B Left';

app.Rew_BLeftButton.FontSize = 10;

app.Rew_BLeftButton.Position = [11 27 74 22];

% Create Rew_BRightButton

app.Rew_BRightButton = uiradiobutton(app.ManualRewardsButtonGroup);

app.Rew_BRightButton.Tag = '4';

app.Rew_BRightButton.Text = 'Rew_B Right';

app.Rew_BRightButton.FontSize = 10;

app.Rew_BRightButton.Position = [101 27 80 22];

app.Rew_BRightButton.Value = true;

% Create OffButton

app.OffButton = uiradiobutton(app.ManualRewardsButtonGroup);

app.OffButton.Text = 'Off';

app.OffButton.FontSize = 10;

app.OffButton.Position = [85 5 35 22];% Create ManualRewardsButtonGroup

app.ManualRewardsButtonGroup = uibuttongroup(app.RewardControls);

app.ManualRewardsButtonGroup.AutoResizeChildren = 'off';

app.ManualRewardsButtonGroup.SelectionChangedFcn = createCallbackFcn(app, @ManualRewardsButtonGroupSelectionChanged, true);

app.ManualRewardsButtonGroup.TitlePosition = 'centertop';

app.ManualRewardsButtonGroup.Title = 'Manual Rewards';

app.ManualRewardsButtonGroup.FontSize = 10;

app.ManualRewardsButtonGroup.Position = [38 6 190 95];

% Create Rew_ALeftButton

app.Rew_ALeftButton = uiradiobutton(app.ManualRewardsButtonGroup);

app.Rew_ALeftButton.Tag = '1';

app.Rew_ALeftButton.Text = 'Rew_A Left';

app.Rew_ALeftButton.FontSize = 10;

app.Rew_ALeftButton.Position = [11 49 73 22];

% Create Rew_ARightButton

app.Rew_ARightButton = uiradiobutton(app.ManualRewardsButtonGroup);

app.Rew_ARightButton.Tag = '2';

app.Rew_ARightButton.Text = 'Rew_A Right';

app.Rew_ARightButton.FontSize = 10;

app.Rew_ARightButton.Position = [101 49 80 22];

% Create Rew_BLeftButton

app.Rew_BLeftButton = uiradiobutton(app.ManualRewardsButtonGroup);

app.Rew_BLeftButton.Tag = '3';

app.Rew_BLeftButton.Text = 'Rew_B Left';

app.Rew_BLeftButton.FontSize = 10;

app.Rew_BLeftButton.Position = [11 27 74 22];

% Create Rew_BRightButton

app.Rew_BRightButton = uiradiobutton(app.ManualRewardsButtonGroup);

app.Rew_BRightButton.Tag = '4';

app.Rew_BRightButton.Text = 'Rew_B Right';

app.Rew_BRightButton.FontSize = 10;

app.Rew_BRightButton.Position = [101 27 80 22];

app.Rew_BRightButton.Value = true;

% Create OffButton

app.OffButton = uiradiobutton(app.ManualRewardsButtonGroup);

app.OffButton.Text = 'Off';

app.OffButton.FontSize = 10;

app.OffButton.Position = [85 5 35 22];

Answer 1

[Voss]

function ManualRewardsButtonGroupSelectionChanged(app, event)
    selectedButton = app.ManualRewardsButtonGroup.SelectedObject;
    switch selectedButton
        case app.Rew_ALeftButton
            % Give LA reward
        case app.Rew_BLeftButton
            % Give LB reward
        case app.Rew_ARightButton
            % Give RA reward 
        case app.Rew_BRightButton
            % Give RB reward  
    end
end

or

function ManualRewardsButtonGroupSelectionChanged(app, event)
    switch event.NewValue
        case app.Rew_ALeftButton
            % Give LA reward
        case app.Rew_BLeftButton
            % Give LB reward
        case app.Rew_ARightButton
            % Give RA reward 
        case app.Rew_BRightButton
            % Give RB reward  
    end
end

[Alessandro Livi]

Thanks, that fixed it. so the Value is a red herring, the Radio buttons do have numbers! TMI I missed that at the top

selectedButton =

RadioButton (2) with properties:

Value: 1

Text: 'Rew_A Right'

Position: [101 29 80 22]

This one can close

[Voss]

You're welcome! Any questions, let me know. Otherwise, please "Accept" this answer. Thanks!