28

有没有办法使用 Javascript 检测移动设备？此外，我研究了有这样一个 XML 包含可以帮助识别手机的用户代理。

4

9 回答 9

17

您可能有一个普通站点，如果满足某些条件，您可能希望重定向到移动站点，例如屏幕非常小，或者内容被缩小以适应小型物理空间中的大“虚拟”屏幕。那么，为什么不检查这些条件而不是测试无数的 UA 字符串。

尝试这样的事情：

为了让 UA 报告屏幕的物理像素大小，该标签必须存在于 html 页面中。*

<meta name="viewport" 
      content="width=device-width, initial-scale=1, maximum-scale=1" />

现在，只需获取屏幕大小并在需要时重定向。使用轻微的延迟。**

setTimeout(function(){
  if ((screen.width < 480) || (screen.height < 480)) {
    location.replace('/mobile/');
  }
}, 100);

差不多就是这样。由于此页面已经为移动设备设置了视口标签，因此您也可以反过来，在此处显示移动设备并在屏幕更大时重定向到完整站点。

编辑：我不确定为什么这个问题已经关闭；据我所知，它非常适合 SO 格式。投票决定重新开放。

* 用 javascript 插入它似乎不起作用（如果你想出办法，请纠正我）。如果它不存在，手机将报告一个大于实际屏幕的虚拟屏幕尺寸。它似乎也不适用于 iframe，只有顶级窗口（这是有道理的，因为 iframe 需要缩放与外部窗口相同的数量，它们共享相同的视口）。

** 一些移动浏览器会保留上次加载页面的视口大小，因此它们会在几毫秒内报告较大的虚拟屏幕大小，直到它们注意到我猜的元标记。我找不到一个早期的事件来解决这个问题，如果你有更好的方法，请发表评论。在我所有的测试中，50 毫秒的延迟都很好，100 应该是安全的。

于 2011-08-10T00:40:52.917 回答
6

我有这个来自 K2F 的代码，它在PHP中，你必须将它转换为 javascript。

应该不会太麻烦。了解常量（文本位）应该对您有很大帮助。

/**
 * A simple class used to detect whether page<br>
 * is being viewed from a mobile device or not.
 * @copyright 2010 Covac Software
 * @author Christian Sciberras
 * @version 01/05/2010
 */
class Mobile {
    public static function is_mobile(){
        $user_agent = $_SERVER['HTTP_USER_AGENT']; // get the user agent value - this should be cleaned to ensure no nefarious input gets executed
        $accept     = $_SERVER['HTTP_ACCEPT']; // get the content accept value - this should be cleaned to ensure no nefarious input gets executed
        return false
            || (preg_match('/ipad/i',$user_agent))
            || (preg_match('/ipod/i',$user_agent)||preg_match('/iphone/i',$user_agent))
            || (preg_match('/android/i',$user_agent))
            || (preg_match('/opera mini/i',$user_agent))
            || (preg_match('/blackberry/i',$user_agent))
            || (preg_match('/(pre\/|palm os|palm|hiptop|avantgo|plucker|xiino|blazer|elaine)/i',$user_agent))
            || (preg_match('/(iris|3g_t|windows ce|opera mobi|windows ce; smartphone;|windows ce; iemobile)/i',$user_agent))
            || (preg_match('/(mini 9.5|vx1000|lge |m800|e860|u940|ux840|compal|wireless| mobi|ahong|lg380|lgku|lgu900|lg210|lg47|lg920|lg840|lg370|sam-r|mg50|s55|g83|t66|vx400|mk99|d615|d763|el370|sl900|mp500|samu3|samu4|vx10|xda_|samu5|samu6|samu7|samu9|a615|b832|m881|s920|n210|s700|c-810|_h797|mob-x|sk16d|848b|mowser|s580|r800|471x|v120|rim8|c500foma:|160x|x160|480x|x640|t503|w839|i250|sprint|w398samr810|m5252|c7100|mt126|x225|s5330|s820|htil-g1|fly v71|s302|-x113|novarra|k610i|-three|8325rc|8352rc|sanyo|vx54|c888|nx250|n120|mtk |c5588|s710|t880|c5005|i;458x|p404i|s210|c5100|teleca|s940|c500|s590|foma|samsu|vx8|vx9|a1000|_mms|myx|a700|gu1100|bc831|e300|ems100|me701|me702m-three|sd588|s800|8325rc|ac831|mw200|brew |d88|htc\/|htc_touch|355x|m50|km100|d736|p-9521|telco|sl74|ktouch|m4u\/|me702|8325rc|kddi|phone|lg |sonyericsson|samsung|240x|x320|vx10|nokia|sony cmd|motorola|up.browser|up.link|mmp|symbian|smartphone|midp|wap|vodafone|o2|pocket|kindle|mobile|psp|treo)/i',$user_agent))
            || ((strpos($accept,'text/vnd.wap.wml')>0)||(strpos($accept,'application/vnd.wap.xhtml+xml')>0))
            || (isset($_SERVER['HTTP_X_WAP_PROFILE'])||isset($_SERVER['HTTP_PROFILE']))
            || (in_array(strtolower(substr($user_agent,0,4)),array('1207'=>'1207','3gso'=>'3gso','4thp'=>'4thp','501i'=>'501i','502i'=>'502i','503i'=>'503i','504i'=>'504i','505i'=>'505i','506i'=>'506i','6310'=>'6310','6590'=>'6590','770s'=>'770s','802s'=>'802s','a wa'=>'a wa','acer'=>'acer','acs-'=>'acs-','airn'=>'airn','alav'=>'alav','asus'=>'asus','attw'=>'attw','au-m'=>'au-m','aur '=>'aur ','aus '=>'aus ','abac'=>'abac','acoo'=>'acoo','aiko'=>'aiko','alco'=>'alco','alca'=>'alca','amoi'=>'amoi','anex'=>'anex','anny'=>'anny','anyw'=>'anyw','aptu'=>'aptu','arch'=>'arch','argo'=>'argo','bell'=>'bell','bird'=>'bird','bw-n'=>'bw-n','bw-u'=>'bw-u','beck'=>'beck','benq'=>'benq','bilb'=>'bilb','blac'=>'blac','c55/'=>'c55/','cdm-'=>'cdm-','chtm'=>'chtm','capi'=>'capi','cond'=>'cond','craw'=>'craw','dall'=>'dall','dbte'=>'dbte','dc-s'=>'dc-s','dica'=>'dica','ds-d'=>'ds-d','ds12'=>'ds12','dait'=>'dait','devi'=>'devi','dmob'=>'dmob','doco'=>'doco','dopo'=>'dopo','el49'=>'el49','erk0'=>'erk0','esl8'=>'esl8','ez40'=>'ez40','ez60'=>'ez60','ez70'=>'ez70','ezos'=>'ezos','ezze'=>'ezze','elai'=>'elai','emul'=>'emul','eric'=>'eric','ezwa'=>'ezwa','fake'=>'fake','fly-'=>'fly-','fly_'=>'fly_','g-mo'=>'g-mo','g1 u'=>'g1 u','g560'=>'g560','gf-5'=>'gf-5','grun'=>'grun','gene'=>'gene','go.w'=>'go.w','good'=>'good','grad'=>'grad','hcit'=>'hcit','hd-m'=>'hd-m','hd-p'=>'hd-p','hd-t'=>'hd-t','hei-'=>'hei-','hp i'=>'hp i','hpip'=>'hpip','hs-c'=>'hs-c','htc '=>'htc ','htc-'=>'htc-','htca'=>'htca','htcg'=>'htcg','htcp'=>'htcp','htcs'=>'htcs','htct'=>'htct','htc_'=>'htc_','haie'=>'haie','hita'=>'hita','huaw'=>'huaw','hutc'=>'hutc','i-20'=>'i-20','i-go'=>'i-go','i-ma'=>'i-ma','i230'=>'i230','iac'=>'iac','iac-'=>'iac-','iac/'=>'iac/','ig01'=>'ig01','im1k'=>'im1k','inno'=>'inno','iris'=>'iris','jata'=>'jata','java'=>'java','kddi'=>'kddi','kgt'=>'kgt','kgt/'=>'kgt/','kpt '=>'kpt ','kwc-'=>'kwc-','klon'=>'klon','lexi'=>'lexi','lg g'=>'lg g','lg-a'=>'lg-a','lg-b'=>'lg-b','lg-c'=>'lg-c','lg-d'=>'lg-d','lg-f'=>'lg-f','lg-g'=>'lg-g','lg-k'=>'lg-k','lg-l'=>'lg-l','lg-m'=>'lg-m','lg-o'=>'lg-o','lg-p'=>'lg-p','lg-s'=>'lg-s','lg-t'=>'lg-t','lg-u'=>'lg-u','lg-w'=>'lg-w','lg/k'=>'lg/k','lg/l'=>'lg/l','lg/u'=>'lg/u','lg50'=>'lg50','lg54'=>'lg54','lge-'=>'lge-','lge/'=>'lge/','lynx'=>'lynx','leno'=>'leno','m1-w'=>'m1-w','m3ga'=>'m3ga','m50/'=>'m50/','maui'=>'maui','mc01'=>'mc01','mc21'=>'mc21','mcca'=>'mcca','medi'=>'medi','meri'=>'meri','mio8'=>'mio8','mioa'=>'mioa','mo01'=>'mo01','mo02'=>'mo02','mode'=>'mode','modo'=>'modo','mot '=>'mot ','mot-'=>'mot-','mt50'=>'mt50','mtp1'=>'mtp1','mtv '=>'mtv ','mate'=>'mate','maxo'=>'maxo','merc'=>'merc','mits'=>'mits','mobi'=>'mobi','motv'=>'motv','mozz'=>'mozz','n100'=>'n100','n101'=>'n101','n102'=>'n102','n202'=>'n202','n203'=>'n203','n300'=>'n300','n302'=>'n302','n500'=>'n500','n502'=>'n502','n505'=>'n505','n700'=>'n700','n701'=>'n701','n710'=>'n710','nec-'=>'nec-','nem-'=>'nem-','newg'=>'newg','neon'=>'neon','netf'=>'netf','noki'=>'noki','nzph'=>'nzph','o2 x'=>'o2 x','o2-x'=>'o2-x','opwv'=>'opwv','owg1'=>'owg1','opti'=>'opti','oran'=>'oran','p800'=>'p800','pand'=>'pand','pg-1'=>'pg-1','pg-2'=>'pg-2','pg-3'=>'pg-3','pg-6'=>'pg-6','pg-8'=>'pg-8','pg-c'=>'pg-c','pg13'=>'pg13','phil'=>'phil','pn-2'=>'pn-2','pt-g'=>'pt-g','palm'=>'palm','pana'=>'pana','pire'=>'pire','pock'=>'pock','pose'=>'pose','psio'=>'psio','qa-a'=>'qa-a','qc-2'=>'qc-2','qc-3'=>'qc-3','qc-5'=>'qc-5','qc-7'=>'qc-7','qc07'=>'qc07','qc12'=>'qc12','qc21'=>'qc21','qc32'=>'qc32','qc60'=>'qc60','qci-'=>'qci-','qwap'=>'qwap','qtek'=>'qtek','r380'=>'r380','r600'=>'r600','raks'=>'raks','rim9'=>'rim9','rove'=>'rove','s55/'=>'s55/','sage'=>'sage','sams'=>'sams','sc01'=>'sc01','sch-'=>'sch-','scp-'=>'scp-','sdk/'=>'sdk/','se47'=>'se47','sec-'=>'sec-','sec0'=>'sec0','sec1'=>'sec1','semc'=>'semc','sgh-'=>'sgh-','shar'=>'shar','sie-'=>'sie-','sk-0'=>'sk-0','sl45'=>'sl45','slid'=>'slid','smb3'=>'smb3','smt5'=>'smt5','sp01'=>'sp01','sph-'=>'sph-','spv '=>'spv ','spv-'=>'spv-','sy01'=>'sy01','samm'=>'samm','sany'=>'sany','sava'=>'sava','scoo'=>'scoo','send'=>'send','siem'=>'siem','smar'=>'smar','smit'=>'smit','soft'=>'soft','sony'=>'sony','t-mo'=>'t-mo','t218'=>'t218','t250'=>'t250','t600'=>'t600','t610'=>'t610','t618'=>'t618','tcl-'=>'tcl-','tdg-'=>'tdg-','telm'=>'telm','tim-'=>'tim-','ts70'=>'ts70','tsm-'=>'tsm-','tsm3'=>'tsm3','tsm5'=>'tsm5','tx-9'=>'tx-9','tagt'=>'tagt','talk'=>'talk','teli'=>'teli','topl'=>'topl','hiba'=>'hiba','up.b'=>'up.b','upg1'=>'upg1','utst'=>'utst','v400'=>'v400','v750'=>'v750','veri'=>'veri','vk-v'=>'vk-v','vk40'=>'vk40','vk50'=>'vk50','vk52'=>'vk52','vk53'=>'vk53','vm40'=>'vm40','vx98'=>'vx98','virg'=>'virg','vite'=>'vite','voda'=>'voda','vulc'=>'vulc','w3c '=>'w3c ','w3c-'=>'w3c-','wapj'=>'wapj','wapp'=>'wapp','wapu'=>'wapu','wapm'=>'wapm','wig '=>'wig ','wapi'=>'wapi','wapr'=>'wapr','wapv'=>'wapv','wapy'=>'wapy','wapa'=>'wapa','waps'=>'waps','wapt'=>'wapt','winc'=>'winc','winw'=>'winw','wonu'=>'wonu','x700'=>'x700','xda2'=>'xda2','xdag'=>'xdag','yas-'=>'yas-','your'=>'your','zte-'=>'zte-','zeto'=>'zeto','acs-'=>'acs-','alav'=>'alav','alca'=>'alca','amoi'=>'amoi','aste'=>'aste','audi'=>'audi','avan'=>'avan','benq'=>'benq','bird'=>'bird','blac'=>'blac','blaz'=>'blaz','brew'=>'brew','brvw'=>'brvw','bumb'=>'bumb','ccwa'=>'ccwa','cell'=>'cell','cldc'=>'cldc','cmd-'=>'cmd-','dang'=>'dang','doco'=>'doco','eml2'=>'eml2','eric'=>'eric','fetc'=>'fetc','hipt'=>'hipt','http'=>'http','ibro'=>'ibro','idea'=>'idea','ikom'=>'ikom','inno'=>'inno','ipaq'=>'ipaq','jbro'=>'jbro','jemu'=>'jemu','java'=>'java','jigs'=>'jigs','kddi'=>'kddi','keji'=>'keji','kyoc'=>'kyoc','kyok'=>'kyok','leno'=>'leno','lg-c'=>'lg-c','lg-d'=>'lg-d','lg-g'=>'lg-g','lge-'=>'lge-','libw'=>'libw','m-cr'=>'m-cr','maui'=>'maui','maxo'=>'maxo','midp'=>'midp','mits'=>'mits','mmef'=>'mmef','mobi'=>'mobi','mot-'=>'mot-','moto'=>'moto','mwbp'=>'mwbp','mywa'=>'mywa','nec-'=>'nec-','newt'=>'newt','nok6'=>'nok6','noki'=>'noki','o2im'=>'o2im','opwv'=>'opwv','palm'=>'palm','pana'=>'pana','pant'=>'pant','pdxg'=>'pdxg','phil'=>'phil','play'=>'play','pluc'=>'pluc','port'=>'port','prox'=>'prox','qtek'=>'qtek','qwap'=>'qwap','rozo'=>'rozo','sage'=>'sage','sama'=>'sama','sams'=>'sams','sany'=>'sany','sch-'=>'sch-','sec-'=>'sec-','send'=>'send','seri'=>'seri','sgh-'=>'sgh-','shar'=>'shar','sie-'=>'sie-','siem'=>'siem','smal'=>'smal','smar'=>'smar','sony'=>'sony','sph-'=>'sph-','symb'=>'symb','t-mo'=>'t-mo','teli'=>'teli','tim-'=>'tim-','tosh'=>'tosh','treo'=>'treo','tsm-'=>'tsm-','upg1'=>'upg1','upsi'=>'upsi','vk-v'=>'vk-v','voda'=>'voda','vx52'=>'vx52','vx53'=>'vx53','vx60'=>'vx60','vx61'=>'vx61','vx70'=>'vx70','vx80'=>'vx80','vx81'=>'vx81','vx83'=>'vx83','vx85'=>'vx85','wap-'=>'wap-','wapa'=>'wapa','wapi'=>'wapi','wapp'=>'wapp','wapr'=>'wapr','webc'=>'webc','whit'=>'whit','winw'=>'winw','wmlb'=>'wmlb','xda-'=>'xda-',)))
        ;
    }
}
于 2010-10-08T10:39:39.947 回答
3

我编写了一个名为“ redirection_mobile.js ”的 JS 脚本来解决这个问题。如果您从移动设备访问站点，它会检​​测用户代理并重定向到移动版本。

在某些情况下，您想从移动设备重定向到桌面版本（例如使用“转到主站点”链接），脚本将处理该问题，一旦您完成会话，您将再次访问移动版本.

您可以在 github 上找到源代码https://github.com/sebarmeli/JS-Redirection-Mobile-Site并且您可以在我的一篇文章中阅读更多详细信息：

http://blog.sebarmeli.com/2010/11/02/how-to-redirect-your-site-to-a-mobile-version-through-javascript/

于 2010-11-09T06:06:19.393 回答
2

The very last place I recommend browser sniffing code is mobile. It's the wild west out there right now and nobody is reading from the same rule book. I've heard rumors some browsers are mimicking other user agents to avoid sniffing code that excludes them just like IE used to back in the '90s.

Test by method and google progressive enhancement if you don't already know what it means. Some browser implementations of JS are so messed up they're not worth trying to accomodate and should be served versions of a site that work without JS, IMO.

Just look at what JQuery's core team considers C-grade (not worth supporting) on their graded compatibility tables. And yes, I believe this applies to both the core and the JQ mobile library (which is kind of like JQ ui for mobile, not JQ core for mobile - still needs core to work).

http://jquerymobile.com/gbs/

于 2011-01-10T05:41:10.840 回答
1

我已经发布了“Apache Mobile Filter”的最后一个版本，这个开源项目在前 8 个月内有超过 1100 次来自 sourceforge 的下载，我想来自 CPAN 的下载量也是如此。

Apache Mobile Filter 允许您从任何编程语言访问 WURFL，而不仅仅是传统上用于动态移动网站的 Java 和 php。

该模块检测移动设备并将 WURFL 功能作为环境变量传递给其他 Web 应用程序。它还可以用于动态调整图像大小以适应移动设备的屏幕尺寸。

试试看，让我知道你的意见。

欲了解更多信息：http ://www.idelfuschini.it/it/apache-mobile-filter-v2x.html

于 2009-08-15T23:38:59.453 回答
1

插入手机检测。您可以使用 Javascript、PHP 或最流行的脚本语言。我们处理痛苦，所以你不必:-) 免责声明 - 我在那里工作。

于 2011-01-11T03:03:36.747 回答
1

我不建议使用 Javascript 来检测移动设备，原因很简单，因为其中许多设备不支持 Javascript，因此无法保证您的检测代码适用于所有设备。

通常检测是使用像WURFL这样的描述符文件在服务器端完成的，它不仅可以帮助您检测各种移动用户代理，还可以检测它们的功能、屏幕尺寸、颜色深度等。这样您就可以提供不同的配置资产（javascript 文件、图像大小等）取决于移动设备。

于 2009-04-13T05:55:19.190 回答
1

http://www.hand-interactive.com/resources/detect-mobile-javascript.htm

var deviceBB = "blackberry";

//Initialize our user agent string to lower case. 
var uagent = navigator.userAgent.toLowerCase();

//************************** // Detects if the current browser is a BlackBerry of some sort. 

function DetectBlackBerry() {    
if (uagent.search(deviceBB) > -1)
      return true;    else
      return false; 
}
于 2010-10-08T10:05:40.050 回答
1

这是一个移动检测 Javascript，即使与 Opera MIni 之类的瘦客户端一起使用，我也可以保证它也能很好地工作（免责声明：我写的）：

https://github.com/miohtama/detectmobile.js

于 2011-09-09T21:57:33.333 回答