flutter_package / dart_pdf

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David PHAM-VAN
c85bcfc7 1 parent 5c042555

Add loader

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Showing 1 changed file with 77 additions and 2 deletions
... ... @@ -18,7 +18,7 @@
<meta charset="UTF-8">
<meta content="IE=Edge" http-equiv="X-UA-Compatible">
<meta name="description" content="A new Flutter project.">
<meta name="description" content="Pdf Printing Demo">
<!-- iOS meta tags & icons -->
<meta name="apple-mobile-web-app-capable" content="yes">
... ... @@ -31,8 +31,83 @@
<title>Flutter PDF Demo</title>
<link rel="manifest" href="manifest.json">
<style type="text/css">
#loading {
position: absolute;
width: 400px;
height: 300px;
top: 50%;
left: 50%;
margin: -200px 0 0 -200px;
text-align: center;
font-family: sans-serif
}
#progress {
margin-top: 20px;
height: 10px;
background-color: #ebebeb;
}
#progress div {
background-color: #08a5d7;
height: 100%;
width: 0;
transition: width ease-out 300ms;
}
@media (prefers-color-scheme: dark) {
body {
background-color: black;
}
#loading {
color: white;
}
#progress {
background-color: #393939;
}
}
</style>
</head>
<body>
<script src="flutter_bootstrap.js" async></script>
<div id="loading">
<img src="icons/Icon-192.png" width="192" height="192" alt="">
<h1>Flutter PDF Demo</h1>
<div id="progress">
<div></div>
</div>
</div>
<script>
{{flutter_js}}
{{flutter_build_config}}
function progress(value) {
let el = document.getElementById("progress");
if (el) el.firstElementChild.style.width = value + "%";
}
window.addEventListener('load', function (ev) {
progress(30);
});
window.addEventListener('flutter-first-frame', function () {
let el = document.getElementById("loading");
if (el) el.remove();
});
_flutter.loader.load({
onEntrypointLoaded: async function (engineInitializer) {
progress(60);
const appRunner = await engineInitializer.initializeEngine();
progress(100);
await new Promise(resolve => setTimeout(resolve, 200));
await appRunner.runApp();
}
});
</script>
</body>
</html>
... ...