flutter - 如何为我的 Flutter Web 应用程序配置图标？

很高兴你问！作为该项目的所有者，我可以告诉您我是如何做到的：

更新：支持 PWA 和 Flutter 2

1- 在您的/web文件夹内（要推送到服务器），添加一个 /icons 文件夹（如果您还没有）。

2- 一旦你在那里，你需要上传你的一组图片到这样的网站。

3-看起来像这样：

4-你应该有一个manifest.json并且看起来像这样：

{
    "name": "Tap Hero",
    "short_name": "Tap Hero",
    "start_url": ".",
    "display": "standalone",
    "background_color": "#000000", // any HEX color works
    "theme_color": "#000000", // any HEX color works
    "description": "anything you want here",
    "orientation": "portrait" // or changed as you wish
    "prefer_related_application": false,
    "icons": [
        {
            "src": "\/icons/android-icon-36x36.png",
            "sizes": "36x36",
            "type": "image\/png",
            "density": "0.75"
        },
        {
            "src": "\/icons/android-icon-48x48.png",
            "sizes": "48x48",
            "type": "image\/png",
            "density": "1.0"
        },
        {
            "src": "\/icons/android-icon-72x72.png",
            "sizes": "72x72",
            "type": "image\/png",
            "density": "1.5"
        },
        {
            "src": "\/icons/android-icon-96x96.png",
            "sizes": "96x96",
            "type": "image\/png",
            "density": "2.0"
        },
        {
            "src": "\/icons/android-icon-144x144.png",
            "sizes": "144x144",
            "type": "image\/png",
            "density": "3.0"
        },
        {
            "src": "\/icons/android-icon-192x192.png",
            "sizes": "192x192",
            "type": "image\/png",
            "density": "4.0"
        }
    ]
}

5-完成所有这些后，将其余图标添加到您的index.html：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Tap Hero</title>
    <meta name="description" content="Tap Hero">
    <meta name="keywords" content="Flutter, Tap, Hero, Game">
    <meta name="author" content="Mariano Zorrilla">
    <meta name="theme-color" content="#6200EA" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta content="IE=Edge" http-equiv="X-UA-Compatible">
    <link rel="apple-touch-icon" sizes="57x57" href="icons/apple-icon-57x57.png">
    <link rel="apple-touch-icon" sizes="60x60" href="icons/apple-icon-60x60.png">
    <link rel="apple-touch-icon" sizes="72x72" href="icons/apple-icon-72x72.png">
    <link rel="apple-touch-icon" sizes="76x76" href="icons/apple-icon-76x76.png">
    <link rel="apple-touch-icon" sizes="114x114" href="icons/apple-icon-114x114.png">
    <link rel="apple-touch-icon" sizes="120x120" href="icons/apple-icon-120x120.png">
    <link rel="apple-touch-icon" sizes="144x144" href="icons/apple-icon-144x144.png">
    <link rel="apple-touch-icon" sizes="152x152" href="icons/apple-icon-152x152.png">
    <link rel="apple-touch-icon" sizes="180x180" href="icons/apple-icon-180x180.png">
    <link rel="icon" type="image/png" sizes="192x192" href="icons/android-icon-192x192.png">
    <link rel="icon" type="image/png" sizes="32x32" href="icons/favicon-32x32.png">
    <link rel="icon" type="image/png" sizes="96x96" href="icons/favicon-96x96.png">
    <link rel="icon" type="image/png" sizes="16x16" href="icons/favicon-16x16.png">

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

    <!-- ALTERNATIVE <link rel="icon" type="image/x-icon" href="favicon.ico" /> -->
    
    <link rel="manifest" href="icons/manifest.json">
    <meta name="msapplication-TileColor" content="#6200EA">
    <meta name="msapplication-TileImage" content="icons/ms-icon-144x144.png">
    <script>
       if ('serviceWorker' in navigator) {
         window.addEventListener('flutter-first-frame', function () {
           navigator.serviceWorker.register('flutter_service_worker.js');
         });
       }
    </script>
    <script defer src="main.dart.js" type="application/javascript"></script>
</head>
<body>
</body>
</html>

如果（任何机会）您的/weband ormanifest.json文件已损坏/损坏/等，您可以删除整个文件并执行“flutter create”。这将为您再次生成所有内容，并且每次都可以进行新的尝试。

flutter - 如何为我的 Flutter Web 应用程序配置图标？

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