问题
What is the code to detect touch devices (smartphones and tablets) vs desktops browsers using userAgent.match and return a boolean variable (for example 'isipad')?
I need to test this against Android and Apple devices mainly. If the device browser is Android or Apple, return isipad = false. Else, return isipad = true.
So far I went about it like this (for iDevice browser detection) :
if( navigator.userAgent.match(/iPhone/i) || navigator.userAgent.match(/iPod/i) ||navigator.userAgent.match(/iPad/i) )
{var isipad = true;}
else
{var isipad = false;}
It seems to work, however I would love to be able to add the android browser as well, in this case.
Thanks in advance. Alex
回答1:
if ("ontouchstart" in document.documentElement)
{
alert("It's a touch screen device.");
}
else
{
alert("Others devices");
}
most simple code i found after browsing a lot here and there
回答2:
You really should not try to figure out what type of device it is. Instead, you should examine the capabilities of the host device and have your code adapt to the capabilities it finds regardless of what type of device it is. This is called "feature detection" and is considered a much better way to do things than detecting a particular browser or device.
For example, when Windows 8 tablets come out, there will be devices with both mouse and touch.
There are lots written on how to detect touch capabilities. See these for ideas:
http://alastairc.ac/2010/03/detecting-touch-based-browsing/
Optimize website for touch devices
https://stackoverflow.com/a/4819886/816620
回答3:
Although I agree with @jfriend00 that you should use "feature detection" rather than using the user agent, but it sounds like the user agent is your only option. I use this web site for mobile browser detection. They frequently update their code based on new devices, so update yours occasionaly. Here is the JS code:
(function(a,b){if(/android.+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|meego.+mobile|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(di|rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4)))window.location=b})(navigator.userAgent||navigator.vendor||window.opera,'http://detectmobilebrowser.com/mobile');
Here is a fiddle of it in action.
回答4:
I've tested up against detectmobilebrowsers.com with and iPad mini and a Surface-tablet, and both of them returned ”No mobile browser detected”.
The strangest part about that was, that the User-Agent string for iPad mini actually contains the word "Mobile", which would suggest that it wouldn't be so difficult to determine as a mobile device.
来源：https://stackoverflow.com/questions/12342092/how-to-detect-touch-device-browsers-vs-desktop-using-javascript