我正在寻找一个函数，返回一个布尔值，如果用户正在使用移动浏览器与否。
我知道我可以使用导航器。userAgent并使用regex编写该函数，但是用户代理对于不同的平台来说太复杂了。我怀疑匹配所有可能的设备是否容易，我认为这个问题已经解决了很多次，所以应该有某种完整的解决方案来完成这样的任务。
我正在看这个网站，但不幸的是，脚本是如此神秘，我不知道如何使用它为我的目的，这是创建一个返回true/false的函数。
当前回答
我来这里是为了寻找一种简单、干净的方法来检测“触屏设备”，我把它们归类为手机和平板电脑。在目前的答案中没有找到一个干净的选择，但确实计算出以下可能也会帮助到一些人。
var touchDevice = ('ontouchstart' in document.documentElement);
编辑:要同时支持带有触摸屏的台式机和手机，您可以使用以下方法:
var touchDevice = (navigator.maxTouchPoints || 'ontouchstart' in document.documentElement);
其他回答
下面是迈克尔•扎波罗哲茨(Michael Zaporozhets)回答的一个不那么含糊的版本。它还使用检查仅在第一次调用时构建正则表达式。关于从正则表达式数组构建字符串的技术，请参阅此回答。
var gRE = null;
var gRE4 = null;
function PlatformIsMobile()
{
var e;
if ( gRE == null )
{
e =
[
/(android|bb\d+|meego).+mobile|avantgo/,
/bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile/,
/ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox/,
/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|xda|xiino|android|ipad|playbook|silk/
];
gRE = new RegExp(
e.map( function( r ) { return r.source } ).join( "|" ), "i"
);
}
if ( gRE4 == null )
{
e =
[
/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(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\-/
];
gRE4 = new RegExp(
e.map( function( r ) { return r.source } ).join( "|" ), "i"
);
}
var key = navigator.userAgent || navigator.vendor || window.opera;
return gRE.test( key ) ||
gRE4.test( key.substr( 0, 4 ) );
}
如何:
if (typeof screen.orientation !== 'undefined') { ... }
.．.因为智能手机通常支持这个属性，而桌面浏览器不支持。在MDN中见。
编辑1:正如@Gajus指出的，窗口。Orientation现在已弃用，不应该使用。
编辑2:您可以使用实验屏幕。Orientation而不是弃用的window.orientation。在MDN中见。
编辑3:从窗口更改。朝向屏幕。朝向
没有完美的解决方案来检测JS代码是否在移动浏览器上执行，但以下两个选项应该在大多数情况下都有效。
选项1:浏览器嗅探
!function(a){var b=/iPhone/i,c=/iPod/i,d=/iPad/i,e=/(?=.*\bAndroid\b)(?=.*\bMobile\b)/i,f=/Android/i,g=/(?=.*\bAndroid\b)(?=.*\bSD4930UR\b)/i,h=/(?=.*\bAndroid\b)(?=.*\b(?:KFOT|KFTT|KFJWI|KFJWA|KFSOWI|KFTHWI|KFTHWA|KFAPWI|KFAPWA|KFARWI|KFASWI|KFSAWI|KFSAWA)\b)/i,i=/IEMobile/i,j=/(?=.*\bWindows\b)(?=.*\bARM\b)/i,k=/BlackBerry/i,l=/BB10/i,m=/Opera Mini/i,n=/(CriOS|Chrome)(?=.*\bMobile\b)/i,o=/(?=.*\bFirefox\b)(?=.*\bMobile\b)/i,p=new RegExp("(?:Nexus 7|BNTV250|Kindle Fire|Silk|GT-P1000)","i"),q=function(a,b){return a.test(b)},r=function(a){var r=a||navigator.userAgent,s=r.split("[FBAN");return"undefined"!=typeof s[1]&&(r=s[0]),s=r.split("Twitter"),"undefined"!=typeof s[1]&&(r=s[0]),this.apple={phone:q(b,r),ipod:q(c,r),tablet:!q(b,r)&&q(d,r),device:q(b,r)||q(c,r)||q(d,r)},this.amazon={phone:q(g,r),tablet:!q(g,r)&&q(h,r),device:q(g,r)||q(h,r)},this.android={phone:q(g,r)||q(e,r),tablet:!q(g,r)&&!q(e,r)&&(q(h,r)||q(f,r)),device:q(g,r)||q(h,r)||q(e,r)||q(f,r)},this.windows={phone:q(i,r),tablet:q(j,r),device:q(i,r)||q(j,r)},this.other={blackberry:q(k,r),blackberry10:q(l,r),opera:q(m,r),firefox:q(o,r),chrome:q(n,r),device:q(k,r)||q(l,r)||q(m,r)||q(o,r)||q(n,r)},this.seven_inch=q(p,r),this.any=this.apple.device||this.android.device||this.windows.device||this.other.device||this.seven_inch,this.phone=this.apple.phone||this.android.phone||this.windows.phone,this.tablet=this.apple.tablet||this.android.tablet||this.windows.tablet,"undefined"==typeof window?this:void 0},s=function(){var a=new r;return a.Class=r,a};"undefined"!=typeof module&&module.exports&&"undefined"==typeof window?module.exports=r:"undefined"!=typeof module&&module.exports&&"undefined"!=typeof window?module.exports=s():"function"==typeof define&&define.amd?define("isMobile",[],a.isMobile=s()):a.isMobile=s()}(this); alert(isMobile.any ? 'Mobile' : 'Not mobile');
这个特殊的浏览器嗅探代码是一个名为isMobile的库的代码。
选项2:window.orientation
测试如果窗口。定义方向:
var isMobile = window.orientation > -1; alert（isMobile ？“移动设备”：“非移动设备”）;
Note
并不是所有的触屏设备都是移动的，反之亦然。所以，如果你想实现一些专门针对触摸屏的东西，你不应该测试你的浏览器是否在移动设备上运行，而应该测试设备是否支持触摸屏:
var hasTouchscreen = 'ontouchstart'在窗口; 警报(hasTouchscreen ?'有触摸屏':'没有触摸屏');
这是一个比匹配更有效的userAgent解决方案…
function _isMobile(){
// if we want a more complete list use this: http://detectmobilebrowsers.com/
// str.test() is more efficent than str.match()
// remember str.test is case sensitive
var isMobile = (/iphone|ipod|android|ie|blackberry|fennec/).test
(navigator.userAgent.toLowerCase());
return isMobile;
}
请注意，现在大多数新一代移动设备的分辨率都大于600x400。例如，一部iPhone 6....
测试证明: 在这里运行最多赞和最近的帖子，有一个可选的检查，像这样运行:
(function(a){
window.isMobile = (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|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|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(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)))
})(navigator.userAgent||navigator.vendor||window.opera);
alert("This browser was found to be a % browser.", window.isMobile ? 'mobile' : 'desktop');
不知何故，在以下浏览器应用程序上返回了以下结果。配置:iPhone 6S, iOS 10.3.1。
Safari(最新):将其作为移动设备检测。
Chrome(最新):没有检测到它作为一个移动。
SO, i then tested the suggestion from Lanti (https://stackoverflow.com/a/31864119/7183483), and it did return the proper results (mobile for all iOS devices, and desktop for my Mac). Therefore, i proceeded to edit it a little since it would fire twice (for both mobile and Tablet). I then noticed when testing on an iPad, that it also returned as a mobile, which makes sense, since the Parameters that Lanti uses check the OS more than anything. Therefore, i simply moved the tablet IF statement inside the mobile check, which would return mobile is the Tablet check was negative, and tablet otherwise. I then added the else clause for the mobile check to return as desktop/laptop, since both qualify, but then noticed that the browser detects CPU and OS brand. So i added what is returned in there as part of else if statement instead. To cap it, I added a cautionary else statement in case nothing was detected. See bellow, will update with a test on a Windows 10 PC soon.
哦，我还添加了一个'debugMode'变量，以便在调试和正常编译之间轻松切换。
Dislaimer:这完全是Lanti的功劳，而且这款游戏没有在Windows平板电脑上测试……它可能会返回桌面/笔记本电脑，因为操作系统是纯Windows。等我找到用手机的朋友我会查的。
function userAgentDetect() {
let debugMode = true;
if(window.navigator.userAgent.match(/Mobile/i)
|| window.navigator.userAgent.match(/iPhone/i)
|| window.navigator.userAgent.match(/iPod/i)
|| window.navigator.userAgent.match(/IEMobile/i)
|| window.navigator.userAgent.match(/Windows Phone/i)
|| window.navigator.userAgent.match(/Android/i)
|| window.navigator.userAgent.match(/BlackBerry/i)
|| window.navigator.userAgent.match(/webOS/i)) {
if (window.navigator.userAgent.match(/Tablet/i)
|| window.navigator.userAgent.match(/iPad/i)
|| window.navigator.userAgent.match(/Nexus 7/i)
|| window.navigator.userAgent.match(/Nexus 10/i)
|| window.navigator.userAgent.match(/KFAPWI/i)) {
window.deviceTypeVar = 'tablet';
if (debugMode === true) {
alert('Device is a tablet - ' + navigator.userAgent);
}
} else {
if (debugMode === true) {
alert('Device is a smartphone - ' + navigator.userAgent);
};
window.deviceTypeVar = 'smartphone';
}
} else if (window.navigator.userAgent.match(/Intel Mac/i)) {
if (debugMode === true) {
alert('Device is a desktop or laptop- ' + navigator.userAgent);
}
window.deviceTypeVar = 'desktop_or_laptop';
} else if (window.navigator.userAgent.match(/Nexus 7/i)
|| window.navigator.userAgent.match(/Nexus 10/i)
|| window.navigator.userAgent.match(/KFAPWI/i)) {
window.deviceTypeVar = 'tablet';
if (debugMode === true) {
alert('Device is a tablet - ' + navigator.userAgent);
}
} else {
if (debugMode === true) {
alert('Device is unknown- ' + navigator.userAgent);
}
window.deviceTypeVar = 'Unknown';
}
}
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