jQuery Uniform Checkbox does not (un)check

SIMPLE SOLUTION

This is because UniformJs requires that you update your modification on uniform elements if you need to change values on the form dynamically:

$('#checkbox').prop('checked',true);$.uniform.update();

Edit

If you wish to update the #checkbox only:

$('#checkbox').prop('checked',true);$.uniform.update('#checkbox');

Just do this:

$('#checkbox').prop('checked',true).uniform('refresh');

I know this may be a bit late, but hopefully it will help someone. I had to add a couple lines to the uniform code so it would look for pre checked checkboxes. This code starts at line 262 for me. I am using Uniform version 1.7.5. The lines between the 'added by John' notes are what I added.

        "click.uniform touchend.uniform": function(){      if(!$(elem).attr("checked")){        //box was just unchecked, uncheck span        spanTag.removeClass(options.checkedClass);      // Added by John to look for checkboxes with the attr "checked" that have been click to uncheck      }else if(!$(elem).is(':checked')){        spanTag.removeClass(options.checkedClass);      // end addition by john      }else{        //box was just checked, check span.        spanTag.addClass(options.checkedClass);      }    },