JS判断客户端是手机还是PC

最新推荐文章于 2024-05-30 15:47:51 发布

转载最新推荐文章于 2024-05-30 15:47:51 发布 · 2.7k 阅读

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#移动 #PC

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本文提供了两种用于判断用户设备类型的JavaScript函数。第一种函数通过检查用户代理字符串中是否存在特定关键字来判断是否为PC；第二种函数则更为详细地识别了多种移动设备，并据此进行页面重定向。

做项目遇到需要在PC和手机上显示不同效果需要判断设备在网上找到相关代码转载过来

第一种实际使用的

function IsPC() {
    var userAgentInfo = navigator.userAgent;
    var Agents = ["Android", "iPhone",
                "SymbianOS", "Windows Phone",
                "iPad", "iPod"];
    var flag = true;
    for (var v = 0; v < Agents.length; v++) {
        if (userAgentInfo.indexOf(Agents[v]) > 0) {
            flag = false;
            break;
        }
    }
    return flag;
}

第二种

function browserRedirect() {
    var sUserAgent = navigator.userAgent.toLowerCase();
    var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";
    var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";
    var bIsMidp = sUserAgent.match(/midp/i) == "midp";
    var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
    var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
    var bIsAndroid = sUserAgent.match(/android/i) == "android";
    var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
    var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";
    if (!(bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) ){
        window.location.href=B页面;
    }
}
browserRedirect();

百度的判断

function uaredirect(f) {
 try {
  if (document.getElementById("bdmark") != null) {
   return
  }
  var b = false;
  if (arguments[1]) {
   var e = window.location.host;
   var a = window.location.href;
   if (isSubdomain(arguments[1], e) == 1) {
    f = f + "/#m/" + a;
    b = true
   } else {
    if (isSubdomain(arguments[1], e) == 2) {
     f = f + "/#m/" + a;
     b = true
    } else {
     f = a;
     b = false
    }
   }
  } else {
   b = true
  }
  if (b) {
   var c = window.location.hash;
   if (!c.match("fromapp")) {
    if ((navigator.userAgent.match(/(iPhone|iPod|Android|ios|SymbianOS)/i))) {
     location.replace(f)
    }
   }
  }
 } catch(d) {}
}
function isSubdomain(c, d) {
 this.getdomain = function(f) {
  var e = f.indexOf("://");
  if (e > 0) {
   var h = f.substr(e + 3)
  } else {
   var h = f
  }
  var g = /^www\./;
  if (g.test(h)) {
   h = h.substr(4)
  }
  return h
 };
 if (c == d) {
  return 1
 } else {
  var c = this.getdomain(c);
  var b = this.getdomain(d);
  if (c == b) {
   return 1
  } else {
   c = c.replace(".", "\\.");
   var a = new RegExp("\\." + c + "$");
   if (b.match(a)) {
    return 2
   } else {
    return 0
   }
  }
 }
};