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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>PWA Demo</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"
integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p"
crossorigin="anonymous"></script>
<link rel="manifest" href="manifest.webmanifest">
<script src="sw.js"></script>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
<div class="container-fluid">
<a class="navbar-brand" href="#">PWA</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse"
data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false"
aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" role="button"
data-bs-toggle="dropdown" aria-expanded="false">
Dropdown link
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li>
<hr class="dropdown-divider">
</li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</li>
</ul>
</div>
</div>
</nav>
<div class="mt-2 mb-4 bg-light rounded-3">
<div class="container py-5">
<h1 class="display-5 fw-bold">Welcome to PWA</h1>
<p class="col-md-8 fs-4">Progressive Web Apps (PWAs) are web apps that use service workers, manifests, and
other web-platform features in combination with progressive enhancement to give users an experience on
par with native apps.</p>
<button class="btn btn-primary btn-lg" type="button">Learn More</button>
</div>
</div>
<div class="container">
<div class="row">
<div class="col-md-4">
<div class="card">
<div class="card-body">
<h5 class="card-title">What makes a PWA</h5>
<p class="card-text">Progressive Web Apps (PWA) are built and enhanced with modern APIs to
deliver enhanced capabilities, reliability, and installability while reaching anyone,
anywhere, on any device with a single codebase. To help you create the best possible
experience, use the core and optimal checklists and recommendations to guide you.</p>
<a href="#" class="btn btn-primary">Progressive Web App Checklist </a>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card">
<div class="card-body">
<h5 class="card-title">How Progressive Web Apps can drive business success</h5>
<p class="card-text">Progressive Web Apps are on a lot of companies' roadmap to modernize their
website and adapt to users' new expectations. Like all new concepts and technical
capabilities, they raise questions: is it what my customers want, how much will it grow my
business, what is technically feasible?</p>
<a href="#" class="btn btn-primary">PWAs solve customer needs </a>
</div>
</div>
</div>
</div>
<button class="add-button">Add to home screen</button>
</body>
<script>
let deferredPrompt;
const addBtn = document.querySelector('.add-button');
addBtn.style.display = 'none';
window.addEventListener('beforeinstallprompt', (e) => {
// Prevent Chrome 67 and earlier from automatically showing the prompt
e.preventDefault();
// Stash the event so it can be triggered later.
deferredPrompt = e;
// Update UI to notify the user they can add to home screen
addBtn.style.display = 'block';
addBtn.addEventListener('click', (e) => {
// hide our user interface that shows our A2HS button
addBtn.style.display = 'none';
// Show the prompt
deferredPrompt.prompt();
// Wait for the user to respond to the prompt
deferredPrompt.userChoice.then((choiceResult) => {
if (choiceResult.outcome === 'accepted') {
console.log('User accepted the A2HS prompt');
} else {
console.log('User dismissed the A2HS prompt');
}
deferredPrompt = null;
});
});
});
</script>
</html>