公众号图片长按全屏显示

<!--引入微信js-->
<script type="text/javascript" src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>

$(document).ready(function () {
        var imgs = [];
        var imgObj = $(".shoukuanma");//img对象
        for(var i = 0; i < imgObj.length; i++) {
            imgs.push(imgObj.eq(i).attr('src'));
            imgObj.eq(i).click(function(){
                var nowImgurl = $(this).attr('src');
                WeixinJSBridge.invoke("imagePreview",{
                    "urls":imgs,
                    "current":nowImgurl
                });
            });
        }
    })