MATLAB Creating Graphical User Interfaces

Example of a Simple Layout

Here is the code for a simple app containing an axes and a button. To see how it works,
copy and paste this code into the editor and run it.

function myui
% Add the UI components
hs = addcomponents;

% Make figure visible after adding components
hs.fig.Visible = 'on';

function hs = addcomponents
% add components, save handles in a struct
hs.fig = figure('Visible','off',...
'Resize','off',...
'Tag','fig');
hs.btn = uicontrol(hs.fig,'Position',[10 340 70 30],...
'String','Plot Sine',...
'Tag','button',...
'Callback',@plotsine);
hs.ax = axes('Parent',hs.fig,...
'Position',[0.20 0.13 0.71 0.75],...
'Tag','ax');
end

function plotsine(hObject,event)
theta = 0:pi/64:6*pi;
y = sin(theta);
plot(hs.ax,theta,y);
end
end

This code performs the following tasks:

• The main function, myui, calls the addcomponents function. The addcomponents
  function returns a structure, hs, containing the handles to all the UI components.


• The addcomponents function creates a figure, an axes, and a button, each with
  specific Position values.
  
  
  • Notice that the Resize property of the figure is 'off'. This value disables the
    resizing capability of the figure.
  
  
  • Notice that the Visible property of the figure is 'off' inside the
    addcomponents function. The value changes to 'on' after addcomponents
  
  
  
  

Lay Out a UI Programmatically