关于h5页面:H5唤醒app

url scheme形式

 var downloader,            scheme = ":lklk" //须要关上的app scheme地址            iosDownload = "jjjj",//如果关上scheme生效的app下载地址            anDownload = "http://xxx.com"            var u = navigator.userAgent            var isAndroid = u.indexOf("Android")>-1 || u.indexOf("Linux")>-1 //g            var isIos = !!u.match(/\(i[^;]+;(u;)?CPU.+Mac OS X/);//ios终端            // 给id为openBtn的按钮增加点击事件处理函数            document.getElementById("openBtn").onclick = function(){                window.location.href = scheme  //尝试关上scheme                //设置3秒的定时下载工作 3秒之后下载app                downloader = setTimeout(function(){                    if(isAndroid){                        window.location.href = anDownload                    }                    if(isIos){                        windwo.location.href = iosDownload                    }                },3000)            },            document.addEventListener('visibilitychange webkitvisibilitychange',function(){                //如果页面暗藏 揣测关上scheme胜利  革除下载工作                if(docuemnt.hidden || docuemnt.webkitHidden){                    clearInterval(downloader)                }            })            window.addEventListener('pagehide',function(){                clearInterval(downloader)            })