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我的网络应用程序中有以下代码<head>，但我的 iPhone 3GS 在加载 DOM 而不是启动屏幕时只是在我的 iPhone 3GS 上得到一个白屏。

<meta name="viewport" content="width=device-width, initial-scale=1"> 
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />

<!--STYLES-->

<!--SCRIPTS-->

<!-- iPhone LAUNCHSCREEN-->
<link href="includes/images/apple-launch-480h.png" sizes="320x480" media="(device-height: 480px)" rel="apple-touch-startup-image">
<!-- iPhone (Retina) LAUNCHSCREEN-->
<link href="includes/images/apple-launch-480h2X.png" sizes="640x920" media="(device-height: 480px) and (-webkit-device-pixel-ratio: 2)" rel="apple-touch-startup-image">
<!-- iPhone 5+ LAUNCHSCREEN-->
<link href="includes/images/apple-launch-568h.png" sizes="640x1136" media="(device-height: 568px)" rel="apple-touch-startup-image">

如何让我的启动画面在所有版本的 iPhone 上正确显示？代码未显示，但我的 Web 应用程序图标在添加到主页时可以正常工作。我正在使用 jQuery Mobile 来构建这个网络应用程序。

我还确认 PNG 图像的大小完全正确，我已经删除了 Web 应用程序图标、刷新并多次重新添加到主屏幕。我在 StackOverflow 上找到的所有解决方案都不适合我。我没有尝试过 JavaScript 解决方案，因为我确信有一个纯 CSS 解决方案。

4

2 回答 2

52

该sizes属性适用于apple-touch-icons，但不适用于apple-touch-startup-images。定位启动图像的唯一方法是使用媒体查询。亚当的回答很好，但依赖于<link>s 的特定顺序，因为媒体查询未指定。以下是完全限定的媒体查询：

<!-- iPhone -->
<link href="apple-touch-startup-image-320x460.png"
      media="(device-width: 320px) and (device-height: 480px)
         and (-webkit-device-pixel-ratio: 1)"
      rel="apple-touch-startup-image">
<!-- iPhone (Retina) -->
<link href="apple-touch-startup-image-640x920.png"
      media="(device-width: 320px) and (device-height: 480px)
         and (-webkit-device-pixel-ratio: 2)"
      rel="apple-touch-startup-image">
<!-- iPhone 5 -->
<link href="apple-touch-startup-image-640x1096.png"
      media="(device-width: 320px) and (device-height: 568px)
         and (-webkit-device-pixel-ratio: 2)"
      rel="apple-touch-startup-image">
<!-- iPad (portrait) -->
<link href="apple-touch-startup-image-768x1004.png"
      media="(device-width: 768px) and (device-height: 1024px)
         and (orientation: portrait)
         and (-webkit-device-pixel-ratio: 1)"
      rel="apple-touch-startup-image">
<!-- iPad (landscape) -->
<link href="apple-touch-startup-image-748x1024.png"
      media="(device-width: 768px) and (device-height: 1024px)
         and (orientation: landscape)
         and (-webkit-device-pixel-ratio: 1)"
      rel="apple-touch-startup-image">
<!-- iPad (Retina, portrait) -->
<link href="apple-touch-startup-image-1536x2008.png"
      media="(device-width: 768px) and (device-height: 1024px)
         and (orientation: portrait)
         and (-webkit-device-pixel-ratio: 2)"
      rel="apple-touch-startup-image">
<!-- iPad (Retina, landscape) -->
<link href="apple-touch-startup-image-1496x2048.png"
      media="(device-width: 768px) and (device-height: 1024px)
         and (orientation: landscape)
         and (-webkit-device-pixel-ratio: 2)"
      rel="apple-touch-startup-image">

另请注意，某些视口会导致您的 Web 应用程序在 iPhone 5 上被加黑：

<!-- Letterboxed on iPhone 5 -->
<meta name="viewport"
      content="width=device-width">
<meta name="viewport"
      content="width=320">
<!-- Not letterboxed on iPhone 5 -->
<meta name="viewport"
      content="initial-scale=1.0">
<meta name="viewport"
      content="width=320.1">

我用一个最小的 iOS 网络应用程序维护一个要点，包括启动图像和图标。如果您想要更多评论，我还写了一篇关于 iPhone 5 启动图像的博客文章。

于 2012-10-03T15:03:20.227 回答
3

以下是要使用的尺寸：

<!-- iPhone -->
<link href="http://www.example.com/mobile/images/apple-startup-iPhone.jpg" media="(device-width: 320px)" rel="apple-touch-startup-image">

<!-- iPhone (Retina) -->
<link href="http://www.example.com/mobile/images/apple-startup-iPhone-RETINA.jpg" media="(device-width: 320px) and (-webkit-device-pixel-ratio: 2)" rel="apple-touch-startup-image">

<!-- iPhone Tall (Retina) -->
<link href="http://www.example.com/mobile/images/apple-startup-iPhone-Tall-RETINA.jpg" rel="apple-touch-startup-image" sizes="640x1096">

<!-- iPad (portrait) -->
<link href="http://www.example.com/mobile/images/apple-startup-iPad-Portrait.jpg" media="(device-width: 768px) and (orientation: portrait)" rel="apple-touch-startup-image">

<!-- iPad (landscape) -->
<link href="http://www.example.com/mobile/images/apple-startup-iPad-Landscape.jpg" media="(device-width: 768px) and (orientation: landscape)" rel="apple-touch-startup-image">

<!-- iPad (Retina, portrait) -->
<link href="http://www.example.com/mobile/images/apple-startup-iPad-RETINA-Portrait.jpg" media="(device-width: 768px) and (orientation: portrait) and (-webkit-device-pixel-ratio: 2)" rel="apple-touch-startup-image">

<!-- iPad (Retina, landscape) -->
<link href="http://www.example.com/mobile/images/apple-startup-iPad-RETINA-Landscape.jpg" media="(device-width: 768px) and (orientation: landscape) and (-webkit-device-pixel-ratio: 2)" rel="apple-touch-startup-image">
于 2012-09-28T16:28:01.440 回答