title: how to make every URL open in android app
body: <p>For my website, I had built an android app just as a wrapper to the website in an android studio.</p>
  
  <p>I have two-buttons on my website,</p>
  
  <ol>
  <li>Calling Button: when I click on that it calls will connect to the
  specific customers' mobile.</li>
  <li>WhatsApp button: when I click on this it will redirect WhatsApp
  application for sending a message that customers.</li>
  </ol>
  
  <p>These two buttons are working fine on the website.</p>
  
  <p>The problem is when I try to use these buttons on the Android app it's not working.</p>
  
  <p>it is showing webpage not available</p>