Yair, the following didn’t work for me either:

jh.setBorderPainted(false);

Regards,
Kim

The default Java Look&Feel for UI buttons paints the border together with the contents, and apparently prevents changing both of them together (reference). Changing to a different Look&Feel might possibly help, and of course you could always create and use a custom Java class that inherits JButton. In any case, this is a pure Java Swing issue (not Matlab) so you should search for answers in Java forums.

Cross-reference: http://undocumentedmatlab.com/articles/customizing-uicontrol-border

If I change the border of a button, then change the background color, the border resets. Then I am not able to change the border whatsoever. Is there a way I can change the border and the background? I do not want to be stuck using borderless buttons if I don’t have to

Thanks

@David – you can place the relevant setIcon() code in a small function and set the parent’s SizeChangedFcn callback to this function’s handle. This way whenever the parent resizes the icon will get repainted. Add a call to jButton.repaint() after setIcon(), to ensure that it actually gets repainted.

f = figure;
b = uicontrol(f);
jButton = java(findjobj(b))
jButton.setIcon(javax.swing.ImageIcon(iconPath))

I am using R2015a and Windows7

@Brian –

jh.setBorderPainted(false);  % or: jh.BorderPainted=false;

I’ve had a heck of a time trying to figure out how to do a border-less button. I tried using both the null vector ‘[]’ approach and by setting the border directly by using the methods from the border factory class from the link you posted above (see below). However none of these attempts result in a border-less button.

I followed your example of a borderless button from here:
http://undocumentedmatlab.com/blog/borderless-button-used-for-plot-properties

I just can’t understand why this won’t work here in this simplified example. My simple code looks like this so far:

f=figure('Menubar','none', 'Position',[200 200 300 200]);
p=uipanel(f, 'BackgroundColor', [0 0 1]);
h = uicontrol('parent', p, 'Style','pushbutton', 'String','click', ...
   'Units','normalized', 'Position',[0.3 0.3 0.5 0.5],'BackgroundColor', [0 0 1]);
jh = findjobj(h);
jh.setBorder(javax.swing.BorderFactory.createEmptyBorder()); %attempt 1 does not remove border
jh.border=[];                                                %attempt 2 does not remove border
jh.setBorder([]);                                            %attempt 3 does not remove border
jh.border=javax.swing.BorderFactory.createEmptyBorder();     %attempt 4 does not remove border

I’m using MATLAB 2015a and Windows7. Any way you can provide a simple complete code for a border-less button or edit above?

Thank You!

 
info_icon_path = fullfile('C:\Users\Zhang\Desktop\icons\ModelAdvisor.png');
info_aSi = uicontrol('Style','PushButton',...   
                 'position',[10,10,120,70],...
                 'TooltipString','',...  
                 'fontsize',10,...      
                 'fontweight','bold',...      
                 'String','Description',...
                 'Enable','on');

jButton_info_nFS = findjobj(info_aSi);              %find Java-Handle of Button
jButton_info_nFS.setIcon(javax.swing.ImageIcon(info_icon_path));    %add image to button
set(jButton_info_nFS,'HorizontalTextPosition',javax.swing.SwingConstants.RIGHT);    %align text
set(jButton_info_nFS,'VerticalTextPosition',javax.swing.SwingConstants.CENTER);   

OK, thanks.

@Chris – axes are not Java objects, so you cannot use findjobj with them. And no, they don’t have tooltips.