title: Check if Webpage/Webview contains certain words (android)
body: <p>I am creating an application, and I would like to give a notification to the user if the a webpage (which displays canceled classes) contains the class you're in.<br><br>
  How can this be done?<br> Do I have to use a <code>webview</code> and reload every x minutes on the background and check if it contains certain words, and if it does, give a notification? And if this is the way, how do I check for certain words within a <code>webview</code>?</p>