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HTML5网页如何调用浏览器APP的微信分享功能？

如图，最近有看到新浪的移动端网页，增加了微信分享功能。在浏览器APP（Safari除外）中可以直接调用微信APP，分享至朋友圈或者聊天窗口。并不像很多网站是通过弹出一个图片提示右上角分享。
我是一个产品汪，经过我分析，并不是通过微信接口实现的，而是直接调用了浏览器APP自带的微信分享功能。比如我用安卓手机自带webkit内核浏览器（原生浏览器没有微信分享功能），打开新浪文章页，就不会出现这个微信分享的功能按钮。
不知这是怎么实现的，不是原生APP调用微信接口，也不是PC网页微信分享代码。请看清试用环境，求大神帮忙解答~~~~

update:
JefferyWang 写的这个工具不错，省了好多事。跳舞肯定棒！！
http://.com/q/1010000002539562?_ea=313592#a-1020000002912654

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update: js-sdk
参考微信最新的 js-sdk
http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html

也可以再分析一下新浪移动官网这个js
http://mjs.sinaimg.cn/wap/module/share/201501261608/js/addShare.min.js
不知道地址会不会变，代码就贴最下边吧。。

update:以下答非所问！请勿参考。
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这种事，产品汪为何要知道，交给程序狗，，猿不就行了，

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好吧；

  1. 分享电脑端网页到微信，通过扫一扫的方式，那用这个 jiathis 插件就好。
    http://www.jiathis.com/help/html/weixin-share-code

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aa={_obj:t.findId.spicid,_title:readConfig.share.shorttitle?readConfig.share.shorttitle:$("title").html(),_content:readConfig.share.content?readConfig.share.content:$("title").html(),_url:readConfig.share.shareurl,_platform:Z?Z.data("platform"):""};K.iTitle=aa._title;K.iContent=aa._content;K.iImgsrc=readConfig.share.imgsrc?readConfig.share.imgsrc:($("#"+aa._obj).attr("src")?$("#"+aa._obj).attr("src"):L.shareimgsrc);K.iUrl=aa._url;K.iBackurl=aa._url;K.isdoc=readConfig.share.isdoc?readConfig.share.isdoc:0;return aa}function z(){var Z=L.contentMax-K.iContent.length;$("#"+t.findId.shareContentid).text(K.iContent);$("#"+t.findId.sharecnum).html(Z);if(Z<0){$("#"+t.findId.sharecnum).addClass("notice");$("."+t.findClass.submitBtn).addClass(t.findClass.forbid)}else{$("#"+t.findId.sharecnum).removeClass("notice");$("."+t.findClass.submitBtn).removeClass(t.findClass.forbid)}$("#"+t.findId.shareImg).attr("src",K.iImgsrc);l(W.share)}function w(){$("#"+t.findId.floatCross).on("click ",function(){l(W.fade)});return}var O="",o=document.documentElement.clientHeight;function x(af){var ag=$("."+t.findClass.sinaShareContent),aa=$("."+t.findClass.shareContentZone),ab=$("#"+t.findId.shareContentid),ac=$("."+t.findClass.sinaInfo),ae=$("#"+t.findId.sharefloat),ad=$("#"+t.findId.sharecnum),ah=$("."+t.findClass.submitBtn);var Z=function(){if(ag.css("display")=="block"){var aj=document.getElementById(t.findId.shareContentid).value,ai=L.contentMax-aj.length;ad.html(ai);if(ai<0||ai==L.contentMax){ad.addClass("notice");ah.addClass(t.findClass.forbid)}else{ad.removeClass("notice");ah.removeClass(t.findClass.forbid)}K.iContent=aj}};if(!af){aa.css({height:"140px"});ab.attr("rows",L.contentRows[1])}else{$("#"+t.findId.shareContentid).on("click tap",function(){var ai=ab.html();X();ab.focus()}).on("keyup",Z).focus(function(){aa.css({height:"85px"});$(this).attr("rows",L.contentRows[0]);$(".sharebox").css({"margin-top":"40px"});$(".shareBg").css("height",(o+50)+"px")}).blur(function(){$(this).attr("rows",L.contentRows[1]);$(".sharebox").css({"margin-top":"10px"});$(".shareBg").css("height",(o+10)+"px")});document.addEventListener("touchend",Z,false)}return}function n(){$("."+t.findClass.submitBtn).each(function(){$(this).on("click",function(){X();if(!$(this).hasClass(t.findClass.forbid)){M()}})});return}var B=function(Z){Z.preventDefault()};function u(Z){var aa=document.body;if(Z){$(document.body).css({overflow:"hidden",position:"absolute",top:"0px"})}else{$(document.body).css({overflow:"auto",position:"relative"})}return}var J=document.body.scrollTop,E=document.getElementsByName("viewport")[0],k={hide:"width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no, minimal-ui",show:"width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no"},c=false;function l(aa,ab,Z){aa=aa?aa:W.login;switch(aa){case W.login:F(ab,Z);break;case W.platlist:if(!c){J=document.body.scrollTop}E.content=k.hide;setTimeout(function(){window.scrollTo(0,1)},200);c=true;f(true);m(t.findId.sharefloat,true);y(t.findId.floatCross,true);y(t.findId.sharetitle,false);P("."+t.findClass.platforms_big,true,W.platlist);P("."+t.findClass.sinaShareContent,false,W.share);break;case W.share:if(__userConfig__.__isLogin){if(!c){J=document.body.scrollTop}E.content=k.hide;setTimeout(function(){window.scrollTo(0,1)},200);c=true;f(true);m(t.findId.sharefloat,true);y(t.findId.floatCross,true);y(t.findId.sharetitle,true);R();if($("#j_user_img").find("img").attr("src")==window.location.href||$("#j_user_img").find("img").attr("src")==""){g()}P("."+t.findClass.platforms_big,false,W.platlist);P("."+t.findClass.sinaShareContent,true,W.share);v("public_sinaweibo")}else{a.login(__userConfig__.__isLogin,l,W.share)}break;case W.fade:E.content=k.show;f(false);m(t.findId.sharefloat,false);y(t.findId.floatCross,true);P("."+t.findClass.platforms_big,false,W.platlist);P("."+t.findClass.sinaShareContent,false,W.share);x(false);A($("."+t.findClass.addFavor),false);if(c){document.body.scrollTop=J}c=false;break;default:break}return}function I(Z){if(Z&&Z.preventDefault){Z.preventDefault()}else{window.event.returnValue=false}return false}function f(aa){var ab=$(document.body),Z=ab.children();for(var ac=0;ac<Z.length;ac++){if(Z[ac].tagName!="SCRIPT"&&Z[ac].tagName!="NOSCRIPT"&&$(Z[ac]).find(".shareBg").length<=0){if(aa&&$(Z[ac]).css("display")!="none"){$(Z[ac]).data("show","show");$(Z[ac]).hide()}else{if(!aa){if($(Z[ac]).data("show")=="show"&&$(Z[ac]).css("display")=="none"){$(Z[ac]).show()}else{$(Z[ac]).data("show","")}}}}}}function R(){$("#"+t.findId.userImg).find("img").attr("src",__userConfig__.__uface);$("#"+t.findId.userName).html(__userConfig__.__unick)}function P(af,ae,aa){var ag=$(af),ab=(aa==W.platlist)?ag.find("li"):ag,Z=ae?1:0,ac=ae?L.animate[0]:"",ad=ae?"block":"none";if(ae){ag.css({opacity:0});setTimeout(function(){ag.css({opacity:Z})},250);ab.css({"-webkit-animation-name":ac,opacity:Z,display:ad});if(ab!=ag){ag.css({display:ad})}}else{ab.css({"-webkit-animation-name":ac,opacity:Z,display:ad});ag.css({opacity:Z,display:ad})}return}function m(ac,Z){var aa=$("#"+ac),ab=aa.css("display");if(ab=="none"&&Z){aa.show(3000)}else{if(ab!="none"&&!Z){aa.hide("fast")}}return}function y(aa,Z){if(!Z){$("#"+aa).hide()}else{$("#"+aa).show()}return}function F(aa,Z){m(t.findId.sharefloat,false);if(typeof(aa)!="undefined"&&typeof(Z)!="undefined"){a.login(__userConfig__.__isLogin,aa,Z)}else{if(typeof(aa)!="undefined"){a.login(__userConfig__.__isLogin,aa)}else{a.login(__userConfig__.__isLogin)}}}function g(){var Z=L.userInfoUrl+"userCallback";p(Z);return}window.userCallback=function(Z){__userConfig__.__uface=Z.result.data.userface;__userConfig__.__unick=Z.result.data.uname;$("#"+t.findId.userImg).find("img").attr("src",__userConfig__.__uface);$("#"+t.findId.userName).html(__userConfig__.__unick);return};function v(Z){var aa={name:Z};if(typeof(window.suds_count)=="function"||window.suds_count){window.suds_count&&window.suds_count(aa)}}function j(){$("head").append('<link rel="stylesheet" type="text/css" href="'+L.cssPath+'"></link>');d();return}this.init=function(){if(typeof(window.__userConfig__)=="undefined"||!window.__userConfig__){window.__userConfig__={__uid:"",__unick:"",__uface:"",__isLogin:false}}j();setTimeout(function(){b();S();Q()},200);return};return}function isloadqqApi(){var c=new MyShareClass();if(isqqBrowser){var b=(version.qq<5.4)?qApiSrc.lower:qApiSrc.higher,d=document.createElement("script"),a=document.getElementsByTagName("body")[0];d.onload=function(){c.init()};d.setAttribute("src",b);a.appendChild(d)}else{c.init()}return}function getPlantform(){ua=navigator.userAgent;if((ua.indexOf("iPhone")>-1||ua.indexOf("iPod")>-1)){return"iPhone"}return"Android"}function getVersion(c){var a=c.split("."),b=parseFloat(a[0]+"."+a[1]);return b}function init(){platform_os=getPlantform();version.qq=isqqBrowser?getVersion(navigator.appVersion.split("MQQBrowser/")[1]):0;version.uc=isucBrowser?getVersion(navigator.appVersion.split("UCBrowser/")[1]):0;if((isqqBrowser&&version.qq<5.4&&platform_os=="iPhone")||(isqqBrowser&&version.qq<5.3&&platform_os=="Android")){isqqBrowser=bLevel.qq.forbid}else{if(isqqBrowser&&version.qq<5.4&&platform_os=="Android"){isqqBrowser=bLevel.qq.lower}else{if(isucBrowser&&((version.uc<10.2&&platform_os=="iPhone")||(version.uc<9.7&&platform_os=="Android"))){isucBrowser=bLevel.uc.forbid}}}isloadqqApi();return}setTimeout(function(){init()},300);

现在还能用吗。 好像没效果啦~

微信的sdk只能在微信内置浏览器中使用。我也发现了网易中有分享这个功能。于是我做了一些修改。适用于自己的网站。可是有一个问题使我不敢使用http://jsapi.qq.com/get?api=谁能告诉我这个请求是干嘛的。看网址应该属于腾讯的，是否是免费开源的。

在微信内置的内置浏览器要怎么办呢

APP 调用的 微信分享sdk

请问题主您最后实现这个功能了吗？

http://ask.dcloud.net.cn/docs/

请问楼主这个功能在哪看到的？能具体说下嘛？

昨天刚进行了整理,并且在github上面创建了一个项目:https://github.com/JefferyWang/nativeShare.js


    if (/AppleWebKit.*Mobile/i.test(navigator.userAgent) || (/MIDP|SymbianOS|NOKIA|SAMSUNG|LG|NEC|TCL|Alcatel|BIRD|DBTEL|Dopod|PHILIPS|HAIER|LENOVO|MOT-|Nokia|SonyEricsson|SIE-|Amoi|ZTE/.test(navigator.userAgent))) {
        if (window.location.href.indexOf("?mobile") < 0) {
            try {
                //判断是手机端访问
                if (/Android|webOS|iPhone|iPod|BlackBerry/i.test(navigator.userAgent)) {

                    //判断是UC浏览器
                    if (typeof (ucweb) != "undefined") {

                        //微信好友
                        $("#btnShareFirend").unbind();
                        $("#btnShareFirend").bind("click", function () {
                            var Browser = new Object();
                            Browser.ios = /iphone/.test(Browser.userAgent); //判断ios系统 
                            var title = document.title;
                            var img = "";
                            var url = location.href;
                            if (Browser.ios) {
                                ucbrowser.web_share(title, img, url, 'kWeixin', '', '', '');
                            } else {
                                ucweb.startRequest("shell.page_share", [title, img, url, 'WechatFriends', '', '', '']);
                            };
                        });

                        //微信朋友圈
                        $("#btnWeixinShare").unbind();
                        $("#btnWeixinShare").bind("click", function () {
                            var Browser = new Object();
                            Browser.ios = /iphone/.test(Browser.userAgent); //判断ios系统 
                            var title = document.title;
                            var img = "";
                            var url = location.href;
                            if (Browser.ios) {
                                ucbrowser.web_share(title, img, url, 'kWeixinFriend', '', '', '');
                            } else {
                                ucweb.startRequest("shell.page_share", [title, img, url, 'WechatTimeline', '', '', '']);
                            };
                        });

                    }
                }
            } catch (e) { }
        }
    }
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