<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no">
<title>判斷手機是否安裝微信</title>
</head>
<body>
<a href="javascript:testApp('weixin://')" class="dl-btn" id="download">打開微信</a>
<script>
function testApp(url) {
var timeout, t = 1000, hasApp = true;
setTimeout(function () {
if (!hasApp) {
//沒有安裝微信
var r=confirm("您沒有安裝微信,請先安裝微信!");
if (r==true){
location.href="http://weixin.qq.com/"
}
}else{
//安裝微信
}
document.body.removeChild(ifr);
}, 2000)
var t1 = Date.now();
var ifr = document.createElement("iframe");
ifr.setAttribute('src', url);
ifr.setAttribute('style', 'display:none');
document.body.appendChild(ifr);
timeout = setTimeout(function () {
var t2 = Date.now();
if (!t1 || t2 - t1 < t + 100) {
hasApp = false;
}
}, t);
}
//判斷訪問終端
var browser={
versions:function(){
var u = navigator.userAgent, app = navigator.appVersion;
return {
trident: u.indexOf('Trident') > -1, //IE內核
presto: u.indexOf('Presto') > -1, //opera內核
webKit: u.indexOf('AppleWebKit') > -1, //蘋果、谷歌內核
gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1,//火狐內核
mobile: !!u.match(/AppleWebKit.*Mobile.*/), //是否爲移動終端
ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), //ios終端
android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1, //android終端或者uc瀏覽器
iPhone: u.indexOf('iPhone') > -1 , //是否爲iPhone或者QQHD瀏覽器
iPad: u.indexOf('iPad') > -1, //是否iPad
webApp: u.indexOf('Safari') == -1, //是否web應該程序,沒有頭部與底部
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>
</body>
</html>javascript