MATLAB provides a graphical user interface (GUI) development environment called App Designer, which allows users to easily build GUIs and desktop applications without needing extensive programming knowledge. Here’s how you can build GUIs and desktop applications with MATLAB using App Designer:
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Start App Designer: Launch MATLAB and open the App Designer by typing
appdesignerin the Command Window or clicking on the “Apps” tab in the MATLAB Toolstrip and selecting “App Designer.” -
Design Interface: In App Designer, you can design the interface of your GUI by dragging and dropping components from the Component Library onto the canvas. Components include buttons, sliders, drop-down menus, text boxes, plots, and more.
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Set Properties: Customize the properties of each component by selecting them and modifying their properties in the Property Inspector. Properties include size, position, font, color, and behavior.
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Write Callbacks: Add interactivity to your GUI by writing callbacks for user actions such as button clicks, slider movements, or text input. You can define callback functions using MATLAB code, which will execute in response to specific events triggered by the user.
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Test and Debug: Use the “Run” button in App Designer to test your GUI interactively. You can interact with the GUI in real-time to verify its functionality and behavior. App Designer also provides debugging tools to identify and fix any issues in your code.
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Deploy Application: Once your GUI is complete, you can deploy it as a standalone desktop application or share it with others. MATLAB provides deployment options to package your application for distribution, including standalone executables, web apps, or app files that can be run within MATLAB.
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Explore Examples and Documentation: App Designer includes built-in examples and extensive documentation to help you learn how to create GUIs and desktop applications effectively. You can access examples and documentation from within App Designer or through the MATLAB Help Browser.
Here’s a simple example of creating a GUI with App Designer:
classdef SimpleGUI < matlab.apps.AppBase
% Properties that correspond to app components
properties (Access = private)
UIFigure matlab.ui.Figure
Button matlab.ui.control.Button
Label matlab.ui.control.Label
end
% Callbacks that handle component events
methods (Access = private)
% Button pushed function: Button
function ButtonPushed(app, ~)
app.Label.Text = ‘Hello, MATLAB!’;
end
end
% App creation and deletion
methods (Access = public)
% Construct the app
function app = SimpleGUI
% Create UIFigure and components
createComponents(app);
% Register the app with App Designer
registerApp(app, app.UIFigure);
% Execute the startup function
runStartupFcn(app, @ButtonPushed, true);
% Show the figure after all components are created
app.UIFigure.Visible = ‘on’;
end
end
% Component initialization
methods (Access = private)
% Create UIFigure and components
function createComponents(app)
% Create UIFigure
app.UIFigure = uifigure;
app.UIFigure.Position = [100 100 250 150];
app.UIFigure.Name = ‘SimpleGUI’;
% Create Button
app.Button = uibutton(app.UIFigure, ‘push’);
app.Button.ButtonPushedFcn = createCallbackFcn(app, @ButtonPushed, true);
app.Button.Position = [90 70 70 22];
app.Button.Text = ‘Click Me’;
% Create Label
app.Label = uilabel(app.UIFigure);
app.Label.Position = [95 110 60 22];
app.Label.Text = ”;
end
end
% App initialization
methods (Access = public)
% Code that executes after component creation
function startupFcn(app)
end
end
% Component initialization
methods (Access = private)
% Create UIFigure and components
function createComponents(app)
% Create UIFigure
app.UIFigure = uifigure;
app.UIFigure.Position = [100 100 250 150];
app.UIFigure.Name = ‘SimpleGUI’;
% Create Button
app.Button = uibutton(app.UIFigure, ‘push’);
app.Button.ButtonPushedFcn = createCallbackFcn(app, @ButtonPushed, true);
app.Button.Position = [90 70 70 22];
app.Button.Text = ‘Click Me’;
% Create Label
app.Label = uilabel(app.UIFigure);
app.Label.Position = [95 110 60 22];
app.Label.Text = ”;
end
end
end
This example creates a simple GUI with a button and a label. When the button is clicked, the label text changes to “Hello, MATLAB!”.