在web上从macOS中辨别iPadOS

Question

在iPadOS测试版上，Safari的用户代理与在macOS上的Safari完全相同。有没有其他方法来区分iPad和Mac？

iPad running iOS
Mozilla/5.0 (iPad; CPU OS 10_3_3 like Mac OS X) AppleWebKit/603.3.8 (KHTML, like Gecko) Version/10.0 Mobile/14G60 Safari/602.1

iPadOS, developer beta 1
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15

iPadOS, beta 2, simulator
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15

iPadOS, beta 3, (simulator)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15

iPadOS, developer beta 3
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15

iPadOS, developer beta 4
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15

iPadOS 13.1, developer beta 1
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15

iPadOS 13.1, developer beta 2
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15

iPadOS 13.1, developer beta 3
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.1 Safari/605.1.15

iPadOS 13.1, developer beta 4
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.1 Safari/605.1.15

macOS Catalina 
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15

macOS (older version)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.1.1 Safari/605.1.15

macOS Catalina developer beta 7
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15

macOS Catalina developer beta 8
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.1 Safari/605.1.15

当播放HLS视频时，iPadOS代理似乎是：

AppleCoreMedia/1.0.0.17A5821e (iPad; U; CPU OS 13_1 like Mac OS X; en_us)

Answer 1

我正在使用这个测试客户端：

   if (navigator.userAgent.match(/Mac/) && navigator.maxTouchPoints && navigator.maxTouchPoints > 2) {
     ...must be iPad OS...

由于Mac没有官方的触摸屏，所以看起来很安全。iPad上的maxTouchPoints的实际值是5，BTW。

Answer 2

我正在使用这个工作很好：

const ua = window.navigator.userAgent.toLowerCase();
const isiPad = ua.indexOf('ipad') > -1 || ua.indexOf('macintosh') > -1 && 'ontouchend' in document;

Answer 3

正如@Jonny提到的，你可以尝试检测触摸事件，这是我目前使用的解决方案

function isTouchDevice() {
  if (typeof window === 'undefined') return false
  const prefixes = ' -webkit- -moz- -o- -ms- '.split(' ')
  function mq(query) {
    return typeof window !== 'undefined' && window.matchMedia(query).matches
  }
  if ('ontouchstart' in window || (window?.DocumentTouch && document instanceof DocumentTouch)) return true
  const query = ['(', prefixes.join('touch-enabled),('), 'heartz', ')'].join('') // include the 'heartz' - https://git.io/vznFH
  return mq(query)
}

detecting touch events上的有趣帖子

另外请注意，Ipad上的Firefox使用相同的safari用户代理：