wilsonowilson/index.html

## index.html

<body>

  <script src="js/renderer_switcher.js"></script>

  <script>
   <!-- Service worker code -->
    <!-- This script installs service_worker.js to provide PWA functionality to application. For more information, see: https://developers.google.com/web/fundamentals/primers/service-workers -->

...

## renderer_switcher.dart
abstract class RendererSwitcher {
  static void setHtml() {
    js.context.callMethod('setHtml');
  }

  static void setCanvaskit() {
    js.context.callMethod('setCanvaskit');
  }

  static WebRenderer get renderer {
    return js.context.callMethod('getRenderer') == 'html'
        ? WebRenderer.html
        : WebRenderer.canvaskit;
  }

  static bool get usingHtml {
    return renderer == WebRenderer.html;
  }

  static bool get usingCanvaskit {
    return !usingHtml;
  }
}

enum WebRenderer { html, canvaskit }

## renderer_switcher.js
// Add the file to the root of your web folder.

let localStorage = window.localStorage;
let renderer = getRenderer();
let useHtml = renderer == 'html';

if (useHtml) {
    window.flutterWebRenderer = "html";
} else {
    window.flutterWebRenderer = "canvaskit";
}

console.log(`Running on ${window.flutterWebRenderer}`);


function setHtml() {
    localStorage.setItem('renderer', 'html');
    window.location.reload();
}

function setCanvaskit() {
    localStorage.setItem('renderer', 'canvaskit');
    window.location.reload();
}

function getRenderer() {
    return localStorage.getItem('renderer');
}

	<body>

	<script src="js/renderer_switcher.js"></script>

	<script>
	<!-- Service worker code -->
	<!-- This script installs service_worker.js to provide PWA functionality to application. For more information, see: https://developers.google.com/web/fundamentals/primers/service-workers -->

	...
	abstract class RendererSwitcher {
	static void setHtml() {
	js.context.callMethod('setHtml');
	}

	static void setCanvaskit() {
	js.context.callMethod('setCanvaskit');
	}

	static WebRenderer get renderer {
	return js.context.callMethod('getRenderer') == 'html'
	? WebRenderer.html
	: WebRenderer.canvaskit;
	}

	static bool get usingHtml {
	return renderer == WebRenderer.html;
	}

	static bool get usingCanvaskit {
	return !usingHtml;
	}
	}

	enum WebRenderer { html, canvaskit }
	// Add the file to the root of your web folder.

	let localStorage = window.localStorage;
	let renderer = getRenderer();
	let useHtml = renderer == 'html';

	if (useHtml) {
	window.flutterWebRenderer = "html";
	} else {
	window.flutterWebRenderer = "canvaskit";
	}

	console.log(`Running on ${window.flutterWebRenderer}`);


	function setHtml() {
	localStorage.setItem('renderer', 'html');
	window.location.reload();
	}

	function setCanvaskit() {
	localStorage.setItem('renderer', 'canvaskit');
	window.location.reload();
	}

	function getRenderer() {
	return localStorage.getItem('renderer');
	}