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快速上手 PWA 应用配置

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Norman pong

本文主要讲述智能设备(安卓、iOS)配置 PWA ,可以令 web 应用使用上更像原生应用。影响 PWA 网页应用关键是以下三样东西:<mate><link> 以及 manifest.json 文件。

iOS PWA 应用

iOS PWA 应用

Android PWA 应用

Android PWA 应用

复习一下:HTML是一门标签语言

共有属性

<link rel="manifest" href="/manifest.json">
<link rel="icon" href="/img/norman-logo.png">

Apple 私有属性

参考:developer.apple.com

iOS 设备需要单独添加的属性,其中第一项 link 是设置启动图标,建议使用将透明的边缘都填满颜色,不然 iOS 能将其边缘填充为黑色 (注意:这样的图标看上去是相当难看)

<link rel="apple-touch-icon" href="/apple-touch-icon.png">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
  • apple-mobile-web-app-capablecontent 有两个值 yesno,当我们需要显示工具栏和菜单栏时,这个行meta就不用加了,默认就是显示。
  • apple-mobile-web-app-status-bar-style :默认值为 default(白色),可以定为black(黑色)和 black-translucent(透明)。

注意: 若值为“black-translucent”将会占据页面px位置,浮在页面上方。

过渡页

  • 安卓手机只需要设置 manifest.json 中的 nameshort_nametheme_coloricons,即可自动匹配。
  • iOS 需要在 meta 中继续添加标签,还需要用到媒体查询的语法去适配,不然当尺寸不匹配时,效果将不生效。
<link rel="apple-touch-startup-image" href="/launch.png">
<!-- or 使用媒体查询为条件匹配 -->
<link rel="apple-touch-startup-image" media="screen and (device-width: 320px) and (device-height: 568px) and (-webkit-device-pixel-ratio: 2) and (orientation: landscape)" href="/lanuch.png">

使用 pwa-asset-generator 生成 PWA 配置

npm install -g pwa-asset-generator

使用 logo 生成过渡页

pwa-asset-generator ./icon.png

结果如下,可手动复制到对应的文件中,也可以根据命令生成文件,详细通过 pwa-asset-genrator -h 进行查看。

saveImages Saved image apple-splash-2048-2732 🙌
saveImages Saved image apple-splash-2732-2048 🙌
saveImages Saved image apple-splash-1668-2388 🙌
saveImages Saved image apple-splash-2388-1668 🙌
...

[
{
"src": "manifest-icon-192.maskable.png",
"sizes": "192x192",
"type": "image/png",
"purpose": "any"
},
{
"src": "manifest-icon-192.maskable.png",
"sizes": "192x192",
"type": "image/png",
"purpose": "maskable"
},
{
"src": "manifest-icon-512.maskable.png",
"sizes": "512x512",
"type": "image/png",
"purpose": "any"
},
{
"src": "manifest-icon-512.maskable.png",
"sizes": "512x512",
"type": "image/png",
"purpose": "maskable"
}
]
注意

当 iOS 设备需要设置过渡页时 <meta name="apple-mobile-web-app-capable" content="yes"> content 必须为 yes

完整的参考配置

manifest.json 参考

MDN:Manifest

{
"name": "Norman·Pong Website",
"short_name": "NormanSite",
"theme_color": "#FFFFFF",
"background_color": "#424242",
"display": "standalone",
"orientation": "portrait",
"scope": "./",
"start_url": "./index.html",
"description": "骚气十足且不专注于软件开发的技术博客",
"icons": [
{
"src": "img/icons/icon-192x192.png",
"sizes": "192x192",
"type": "image/png"
},
{
"src": "img/icons/icon-512x512.png",
"sizes": "512x512",
"type": "image/png"
}
]
}
<link rel="manifest" href="/manifest.json">
<link rel="icon" href="/img/norman-logo.png">

<!-- apple -->
<link rel="apple-touch-icon" href="/apple-touch-icon.png">
<meta name="apple-mobile-web-app-capable" content="yes">
<!-- 将状态栏设置为透明,若应用中有固定的导航栏,不建议使用 -->
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">

<!-- apple 设备参考,更详细的尺寸可使用 pwa-asset-generator 生成与查看 -->
<link rel="apple-touch-startup-image" media="(device-width: 390px) and (device-height: 844px) and (-webkit-device-pixel-ratio: 3) and (orientation: portrait)" href="/img/apple-splash/apple-splash-1170-2532.jpg">
<link rel="apple-touch-startup-image" media="(device-width: 414px) and (device-height: 896px) and (-webkit-device-pixel-ratio: 2) and (orientation: portrait)" href="/img/apple-splash/apple-splash-828-1792.jpg">
<link rel="apple-touch-startup-image" media="(device-width: 375px) and (device-height: 812px) and (-webkit-device-pixel-ratio: 3) and (orientation: portrait)" href="/img/apple-splash/apple-splash-1125-2436.jpg">
<link rel="apple-touch-startup-image" media="(device-width: 393px) and (device-height: 852px) and (-webkit-device-pixel-ratio: 3) and (orientation: portrait)" href="/img/apple-splash/apple-splash-1179-2556.jpg">
<link rel="apple-touch-startup-image" media="(device-width: 414px) and (device-height: 736px) and (-webkit-device-pixel-ratio: 3) and (orientation: portrait)" href="/img/apple-splash/apple-splash-1242-2208.jpg">
<link rel="apple-touch-startup-image" media="(device-width: 414px) and (device-height: 896px) and (-webkit-device-pixel-ratio: 3) and (orientation: portrait)" href="/img/apple-splash/apple-splash-1242-2688.jpg">
<link rel="apple-touch-startup-image" media="(device-width: 428px) and (device-height: 926px) and (-webkit-device-pixel-ratio: 3) and (orientation: portrait)" href="/img/apple-splash/apple-splash-1284-2778.jpg">
<link rel="apple-touch-startup-image" media="(device-width: 430px) and (device-height: 932px) and (-webkit-device-pixel-ratio: 3) and (orientation: portrait)" href="/img/apple-splash/apple-splash-1290-2796.jpg">