我们在 https://web.sharezone.net 下提供了 Flutter web。在 Android、macOS 和 Windows（Linux 尚未测试）上，可以将我们的 Flutter 网络应用安装为 PWA。但是，在 iOS 上，这是不可能的。在 iOS 上，Safari 一直在 Safari 内部打开网站。
但是，可以在 Safari 上将 Flutter 网络应用程序安装为 PWA，因为您可以尝试使用 https://pwa_demo.codemagic.app（源代码）。
这是我们的
index.html<!DOCTYPE html>
<!--
Copyright (c) 2022 Sharezone UG (haftungsbeschränkt)
Licensed under the EUPL-1.2-or-later.
You may obtain a copy of the Licence at:
https://joinup.ec.europa.eu/software/page/eupl
SPDX-License-Identifier: EUPL-1.2
-->
<html>
<head>
<!--
If you are serving your web app in a path other than the root, change the
href value below to reflect the base path you are serving from.
The path provided below has to start and end with a slash "/" in order for
it to work correctly.
For more details:
* https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
This is a placeholder for base href that will be replaced by the value of
the `--base-href` argument provided to `flutter build`.
-->
<base href="$FLUTTER_BASE_HREF">
<meta charset="UTF-8">
<meta content="IE=Edge" http-equiv="X-UA-Compatible">
<!-- Caching of HTML for about 6 hours-->
<meta http-equiv="cache-control" content="max-age=21600" />
<!-- iOS meta tags & icons -->
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="apple-mobile-web-app-title" content="fix">
<link rel="apple-touch-icon" href="icons/Icon-192.png">
<link rel="icon" type="image/png" href="favicon.png">
<link rel="manifest" href="manifest.json">
<!-- SEO and SMO -->
<meta name="description"
content="Sharezone ist ein vernetzter Schulplaner, mit dem sich Schüler, Lehrkräfte und Eltern gemeinsam, schnell und datenschutzkonform organisieren können.">
<!-- Favicon -->
<link rel="icon" type="image/png" href="favicon.png" />
<title>Sharezone</title>
<meta name="theme-color" content="#40c4ff">
<link rel="stylesheet" href="index.css" type="text/css" media="screen,projection">
<!-- Required for QR Login -->
<script src="assets/packages/fast_rsa/web/assets/wasm_exec.js" type="application/javascript"></script>
<!-- Required for Google Sign In -->
<meta name="google-signin-client_id"
content="730263787697-s5tqfln3apv1j27netnnv8p8305ns3j9.apps.googleusercontent.com">
<script>
// The value below is injected by flutter build, do not touch.
var serviceWorkerVersion = null;
</script>
<!-- This script adds the flutter initialization JS code -->
<script src="flutter.js" defer></script>
</head>
<body>
<script>
window.addEventListener('load', function (ev) {
// Download main.dart.js
_flutter.loader.loadEntrypoint({
serviceWorker: {
serviceWorkerVersion: serviceWorkerVersion,
},
onEntrypointLoaded: function (engineInitializer) {
engineInitializer.initializeEngine().then(function (appRunner) {
appRunner.runApp();
});
}
});
});
</script>
<div class="spinner">
<div class="double-bounce1"></div>
<div class="double-bounce2"></div>
</div>
<!-- Required for the pdfx package -->
<script src="https://cdn.jsdelivr.net/npm/[email protected]/build/pdf.js" type="text/javascript"></script>
<script type="text/javascript">
pdfjsLib.GlobalWorkerOptions.workerSrc = "https://cdn.jsdelivr.net/npm/[email protected]/build/pdf.worker.min.js";
pdfRenderOptions = {
cMapUrl: 'https://cdn.jsdelivr.net/npm/[email protected]/cmaps/',
cMapPacked: true,
}
</script>
</body>
</html>
我们的
manifest.json{
"name": "Sharezone",
"short_name": "Sharezone",
"start_url": ".",
"display": "standalone",
"background_color": "#0175C2",
"theme_color": "#0175C2",
"description": "Der vernetzte Schulplaner",
"orientation": "portrait-primary",
"prefer_related_applications": false,
"icons": [
{
"src": "icons/Icon-192.png",
"sizes": "192x192",
"type": "image/png"
},
{
"src": "icons/Icon-512.png",
"sizes": "512x512",
"type": "image/png"
},
{
"src": "icons/Icon-maskable-192.png",
"sizes": "192x192",
"type": "image/png",
"purpose": "maskable"
},
{
"src": "icons/Icon-maskable-512.png",
"sizes": "512x512",
"type": "image/png",
"purpose": "maskable"
}
]
}
我们的源代码：https://github.com/SharezoneApp/sharezone-app/tree/update-index-html
我们正在使用 Flutter v3.7.10