I have a single-page AngularJS app. 
The index.html file looks like this:
<html ng-app="myApp" ng-controller="MyCtrl as myctrl">
  <head>
    <link rel="stylesheet" href="my-style-sheet.css">
    <title>{{myctrl.title}}</title>
  </head>
  <body>
    <div class="container">
      <ol>
        <li><a ui-sref="stateA">StateA</a></li>
        <li><a ui-sref="stateB">StateB</a></li>
      </ol>
      <div ui-view></div>
    </div>
    <script src="my-app.js"></script>
  </body>
</html>
As the user clicks on the StateA or StateB links, the page displays the content of those pages in place of <div ui-view></div>. Terrific.
As the user clicks around, the displayed content changes. I need the title of the page to change too. Currently it gets the title from the controller MyCtrl like this: <title>{{myctrl.title}}</title>. But when the user clicks those links, those states each have their own controllers. So I cannot use <title>{{myctrl.title}}</title>. 
How can I update the title when various states the user clicks on have different controllers?
 
     
     
    