JS判断Android、iOS或浏览器的多种方法(四种方法)

<script type="text/javascript">
  var u = navigator.userAgent;
  var isAndroid = u.indexOf('Android') > -1 || u.indexOf('Adr') > -1; //android终端
  var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios终端
  alert('是否是Android：'+isAndroid);
  alert('是否是iOS：'+isiOS);
</script>

<script type="text/javascript">
//判断访问终端
var browser={
  versions:function(){
    var u = navigator.userAgent, 
      app = navigator.appVersion;
    return {
      trident: u.indexOf('Trident') > -1, //IE内核
      presto: u.indexOf('Presto') > -1, //opera内核
      webKit: u.indexOf('AppleWebKit') > -1, //苹果、谷歌内核
      gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1,//火狐内核
      mobile: !!u.match(/AppleWebKit.*Mobile.*/), //是否为移动终端
      ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), //ios终端
      android: u.indexOf('Android') > -1 || u.indexOf('Adr') > -1, //android终端
      iPhone: u.indexOf('iPhone') > -1 , //是否为iPhone或者QQHD浏览器
      iPad: u.indexOf('iPad') > -1, //是否iPad
      webApp: u.indexOf('Safari') == -1, //是否web应该程序，没有头部与底部
      weixin: u.indexOf('MicroMessenger') > -1, //是否微信 （2015-01-22新增）
      qq: u.match(/\sQQ/i) == " qq" //是否QQ
    };
  }(),
  language:(navigator.browserLanguage || navigator.language).toLowerCase()
}
</script>

//判断是否IE内核 
if(browser.versions.trident){ alert(“is IE”); } 
//判断是否webKit内核 
if(browser.versions.webKit){ alert(“is webKit”); } 
//判断是否移动端 
if(browser.versions.mobile||browser.versions.android||browser.versions.ios){ alert(“移动端”); }

currentLang = navigator.language; //判断除IE外其他浏览器使用语言 
if(!currentLang){//判断IE浏览器使用语言 
currentLang = navigator.browserLanguage; 
} 
alert(currentLang);

if (/(iPhone|iPad|iPod|iOS)/i.test(navigator.userAgent)) { //判断iPhone|iPad|iPod|iOS
  //alert(navigator.userAgent); 
  window.location.href ="iPhone.html";
} else if (/(Android)/i.test(navigator.userAgent)) {  //判断Android
  //alert(navigator.userAgent); 
  window.location.href ="Android.html";
} else { //pc
  window.location.href ="pc.html";
};

<script>
　　//判断是否手机端访问
  var userAgentInfo = navigator.userAgent.toLowerCase();
  var Agents = ["android", "iphone",
        "symbianos", "windows phone",
        "ipad", "ipod"];
  var ly=document.referrer; //返回导航到当前网页的超链接所在网页的URL
  for (var v = 0; v < Agents.length; v++) {
    if (userAgentInfo.indexOf(Agents[v]) >= 0&&(ly==""||ly==null)) {
      this.location.href='http://m.***.com'; //wap端地址
    }
  }
</script>

//点击下载按钮判断
appDown() {
    var u = navigator.userAgent;
    var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/);
    var isAndroid = u.indexOf('Android') > -1 || u.indexOf('Adr') > -1; //android终端
    if(isiOS){
        window.location.href = '安卓下载地址'
    }else if(isAndroid){
        window.location.href = '安卓下载地址'
    }
},

<!--通过判断浏览器的userAgent，用正则来判断是否是ios和Android客户端。代码如下-->
 
<script type="text/javascript">
    var u = navigator.userAgent;
    var isAndroid = u.indexOf('Android') > -1 || u.indexOf('Adr') > -1; //android终端
    var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios终端
    alert('是否是Android：'+isAndroid);
    alert('是否是iOS：'+isiOS);
    
    //或者直接用正则，i是忽略大小写
    checkPlatform(){
	if(/android/i.test(navigator.userAgent)){
		console.log("Android");//Android
	}
	if(/(iPhone|iPad|iPod|iOS)/i.test(navigator.userAgent)){
		console.log("iOS");//iOS
	}
}

</script>

//方法1
function IsPC(){  
     var userAgentInfo = navigator.userAgent;
     var Agents = new Array("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;  
  }


//方法2
if (/(iPhone|iPad|iPod|iOS)/i.test(navigator.userAgent)) {
    //alert(navigator.userAgent);  
    window.location.href ="iPhone.html";
} else if (/(Android)/i.test(navigator.userAgent)) {
    //alert(navigator.userAgent); 
    window.location.href ="Android.html";
} else {
    window.location.href ="pc.html";
};