h5页面判断微信端用浏览器打开代码

<div class="weixin-tip">
<p>
<img src="img/live_weixin.png" alt="微信打开"/>
</p>
</div>

<script type="text/javascript">
$(window).on("load",function(){
var winHeight = $(window).height();
function is_weixin() {
var ua = navigator.userAgent.toLowerCase();
if (ua.match(/MicroMessenger/i) == "micromessenger") {
return true;
} else {
return false;
}
}
var isWeixin = is_weixin();
if(isWeixin){
$(".weixin-tip").css("height",winHeight);
$(".weixin-tip").show();
} 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);
if(isAndroid){
$("#box2").clone().attr("id","box3").insertBefore($('#box1'));
$("#box2").hide();
$("#box3").css("margin-bottom","10px");
}
})
</script>

a{text-decoration: none;}
img{max-width: 100%; height: auto;}
.weixin-tip{display: none; position: fixed; left:; top:; bottom:; background: rgba(0,0,0,0.8); filter:alpha(opacity=80); height: 100%; width: 100%; z-index:;}
.weixin-tip p{text-align: center; margin-top: 10%; padding:0 5%;}