bizz84/flutter_bootstrap.js

## flutter_bootstrap.js
{{flutter_js}}
{{flutter_build_config}}

// Manipulate the DOM to add a loading spinner will be rendered with this HTML:
// <div class="loading">
//   <div class="loader" />
// </div>
const loadingDiv = document.createElement('div');
loadingDiv.className = "loading";
document.body.appendChild(loadingDiv);
const loaderDiv = document.createElement('div');
loaderDiv.className = "loader";
loadingDiv.appendChild(loaderDiv);

// Customize the app initialization process
_flutter.loader.load({
  onEntrypointLoaded: async function(engineInitializer) {
    const appRunner = await engineInitializer.initializeEngine();

    // Remove the loading spinner when the app runner is ready
    if (document.body.contains(loadingDiv)) {
      document.body.removeChild(loadingDiv);
    }
    await appRunner.runApp();
  }
});

## index.html
<!DOCTYPE html>
<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">
  <meta name="description" content="A new Flutter project.">

  <!-- 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="starter_architecture_flutter_firebase">
  <link rel="apple-touch-icon" href="icons/Icon-192.png">

  <!-- Favicon -->
  <link rel="icon" type="image/png" href="favicon.png"/>

  <title>starter_architecture_flutter_firebase</title>
  <link rel="manifest" href="manifest.json">

  <!-- Custom CSS styling for the loading spinner -->
  <style>
    .loading {
      display: flex;
      justify-content: center;
      align-items: center;
      margin: 0;
      position: absolute;
      top: 50%;
      left: 50%;
      -ms-transform: translate(-50%, -50%);
      transform: translate(-50%, -50%);
    }

    .loader {
      /* border and border-top should match the app theme */
      border: 4px solid #FFFFFF;
      border-top: 4px solid #3F51B5;
      border-radius: 50%;
      /* similar size to CircularProgressIndicator */
      width: 35px;
      height: 35px;
      /* similar animation to CircularProgressIndicator */
      animation: spin 1s linear infinite;
    }

    @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }
  </style>
</head>
<body>
  <script src="flutter_bootstrap.js" async></script>
</body>
</html>
	{{flutter_js}}
	{{flutter_build_config}}

	// Manipulate the DOM to add a loading spinner will be rendered with this HTML:
	// <div class="loading">
	// <div class="loader" />
	// </div>
	const loadingDiv = document.createElement('div');
	loadingDiv.className = "loading";
	document.body.appendChild(loadingDiv);
	const loaderDiv = document.createElement('div');
	loaderDiv.className = "loader";
	loadingDiv.appendChild(loaderDiv);

	// Customize the app initialization process
	_flutter.loader.load({
	onEntrypointLoaded: async function(engineInitializer) {
	const appRunner = await engineInitializer.initializeEngine();

	// Remove the loading spinner when the app runner is ready
	if (document.body.contains(loadingDiv)) {
	document.body.removeChild(loadingDiv);
	}
	await appRunner.runApp();
	}
	});
	<!DOCTYPE html>
	<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">
	<meta name="description" content="A new Flutter project.">

	<!-- 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="starter_architecture_flutter_firebase">
	<link rel="apple-touch-icon" href="icons/Icon-192.png">

	<!-- Favicon -->
	<link rel="icon" type="image/png" href="favicon.png"/>

	<title>starter_architecture_flutter_firebase</title>
	<link rel="manifest" href="manifest.json">

	<!-- Custom CSS styling for the loading spinner -->
	<style>
	.loading {
	display: flex;
	justify-content: center;
	align-items: center;
	margin: 0;
	position: absolute;
	top: 50%;
	left: 50%;
	-ms-transform: translate(-50%, -50%);
	transform: translate(-50%, -50%);
	}

	.loader {
	/* border and border-top should match the app theme */
	border: 4px solid #FFFFFF;
	border-top: 4px solid #3F51B5;
	border-radius: 50%;
	/* similar size to CircularProgressIndicator */
	width: 35px;
	height: 35px;
	/* similar animation to CircularProgressIndicator */
	animation: spin 1s linear infinite;
	}

	@keyframes spin {
	0% { transform: rotate(0deg); }
	100% { transform: rotate(360deg); }
	}
	</style>
	</head>
	<body>
	<script src="flutter_bootstrap.js" async></script>
	</body>
	</html>