Bootstrap collapse and ui-router

Answer 1

You could simply fix you issue by using data-target attribute(will do the same work) instead of using href attribute which is affecting routing

Markup

<div class="panel panel-default" id="accordion" >
    <div role="tab" id="headingOne">
       <a role="button" href="javascript:;" data-toggle="collapse" data-parent="#accordion" 
          data-target="#collapseOne" aria-expanded="false" aria-controls="collapseOne">
            Click me
        </a>
    </div>
    <div id="collapseOne" class="panel-collapse collapse" role="tabpanel"
     aria-labelledby="headingOne">
        Data
    </div>
</div>