addToHome/index.html at master · Progressive-Web-App-Components/addToHome · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Music Finder</title>
  <meta name="theme-color" content="#303f9f" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=3.0">
  <link rel="manifest" href="./manifest.json">

</head>
<body>
  <p>Follow the steps to add this page to home screen.</p>
  <ul>
    <li>Open Developer Tools</li>
    <li>Go to Application</li>
    <li>Click on Service Worker. Unregister all service worker and refresh the page.</li>
    <li>Click on Manifest on the left side.</li>
    <li>Click the link, Add to homescreen.</li>
  </ul>


  <script>
    if ('serviceWorker' in navigator) {
      window.addEventListener('load', () => {
        navigator.serviceWorker.register('./sw.js').then(registration => {
          console.log('SW registered: ', registration);
        }).catch(registrationError => {
          console.log('SW registration failed: ', registrationError);
        });
      });
    } else {
      console.log('service worker not supported');
    }
    window.addEventListener('beforeinstallprompt', function(e) {
  // beforeinstallprompt Event fired

  // e.userChoice will return a Promise.
  // For more details read: https://developers.google.com/web/fundamentals/getting-started/primers/promises
  e.userChoice.then(function(choiceResult) {

    console.log(choiceResult.outcome);

    if(choiceResult.outcome == 'dismissed') {
      console.log('User cancelled home screen install');
    }
    else {
      console.log('User added to home screen');
    }
  });
});

  </script>
</body>
</html>