Possibility of dropdown from a toolbar button in app designer?

I'd like to create a dropdown menu from the upper toolbar of an app that im designing. This dropdown would be to select the color pallete of a figure in the app. Is it possible to have a dropdown menu appear from a toolbar button?

Answer 1

[Ayush Modi]

Hi Ian,

I am assuming by upper toolbar, you mean the Push Tool button in the toolbar of the App Designer. Yes, you can have a dropdown menu appear from a toolbar button. Here, are the required steps to achieve the same:

1- Create the Toolbar Button

2- Add a DropDown Component.

3- Create a Callback for the Toolbar Button - To read more about the callbacks in the app-designer, refer to the following MathWorks documentation - https://www.mathworks.com/help/matlab/creating_guis/write-callbacks-for-gui-in-app-designer.html

4- Hide the DropDown Initially - You can change the visibility of the DropDown using the 'Visible' property.

function startupFcn(app)
    % Hide the DropDown component initially
    app.DropDown.Visible = 'off';
end

5- Show the DropDown When Toolbar Button is Pressed.

function ToolbarButtonPushed(app, event)
    % Make the DropDown component visible
    app.DropDown.Visible = 'on';
end
% Code that runs after component creation

6- Create a Callback for the DropDown - Write the code to select the color pallete in it.