iPad apple-touch-startup-image实现portrait和landscape

iPad apple-touch-startup-image实现portrait和landscape

为ipad制作web应用程序的启动画面时发现个问题，只能显示竖屏图，横屏图出不来，网上的朋友都说无法解决，做了无数次尝试，终于成功，如下：

首先页面头部里要加入

<link rel=”apple-touch-startup-image” media=”screen and (orientation: portrait)” href=”/apple_startup.png”>
<link rel=”apple-touch-startup-image” media=”screen and (orientation: landscape)” href=”/apple_startup1.png”>

重点在下面：

两张图片必须符合宽高标准才能正常显示：

startup_portrait.png  768×1004

startup_landscape.png 748×1024

1、要注意横屏用图必须竖过来，也就是宽748高1024才能显示，怕说不清楚做了个示意图

2、今天又发现，在safari里选“添加到主屏幕”时要保证设备是竖放，才能在完成后成功显示启动画面。

以上在iPad 1代 4.3.1系统上实验成功。

<!-- iPhone ICON -->

<link href="apple-touch-icon-57x57.png" sizes="57x57" rel="apple-touch-icon">

<!-- iPad ICON-->

<link href="apple-touch-icon-72x72.png" sizes="72x72" rel="apple-touch-icon">

<!-- iPhone (Retina) ICON-->

<link href="apple-touch-icon-114x114.png" sizes="114x114" rel="apple-touch-icon">

<!-- iPad (Retina) ICON-->

<link href="apple-touch-icon-144x144.png" sizes="144x144" rel="apple-touch-icon">

<!-- iPhone SPLASHSCREEN-->

<link href="apple-touch-startup-image-320x460.png" media="(device-width: 320px)" rel="apple-touch-startup-image">

<!-- iPhone (Retina) SPLASHSCREEN-->

<link href="apple-touch-startup-image-640x920.png" media="(device-width: 320px) and (-webkit-device-pixel-ratio: 2)" rel="apple-touch-startup-image">

<!-- iPad (portrait) SPLASHSCREEN-->

<link href="apple-touch-startup-image-768x1004.png" media="(device-width: 768px) and (orientation: portrait)" rel="apple-touch-startup-image">

<!-- iPad (landscape) SPLASHSCREEN-->

<link href="apple-touch-startup-image-748x1024.png" media="(device-width: 768px) and (orientation: landscape)" rel="apple-touch-startup-image">

<!-- iPad (Retina, portrait) SPLASHSCREEN-->

<link href="apple-touch-startup-image-1536x2008.png" media="(device-width: 1536px) and (orientation: portrait) and (-webkit-device-pixel-ratio: 2)" rel="apple-touch-startup-image">

<!-- iPad (Retina, landscape) SPLASHSCREEN-->

<link href="apple-touch-startup-image-2048x1496.png" media="(device-width: 1536px)  and (orientation: landscape) and (-webkit-device-pixel-ratio: 2)" rel="apple-touch-startup-image">