微信小程序判断分享的是群还是好友

最近比较流行的答题小程序通常会有这么一个功能，分享到群增加答题次数，分享到好友无效，那么问题来了，我们如何能够判断用户分享到的是群还是好友呢？通过查找API文档我发现会有这个一个东西withShareTicket 通过这个来判断是否分享到的是群还是好友，想要获取到这个需要这onShow方法里填加一个东西//设置分享获取shareTicket        wx.showShareMenu({            withShareTicket: true,        })只有设置了这个等于true才能够获取到群信息。但是问题又来了IOS系统和Android系统的判断方式是不一样的，我来说一下他们两个的区别：这个函数作用是你在分享到微信群之后可以获取shareTickets，通过wx.getShareInfo()和shareTickets，可以获取到分享群的加密过的信息。这里要注意下如果分享的是个人android仍然可以获取到shareTickets，而ios分享到个人是获取不到shareTickets的。如果是ios你可以在直接用if()判断shareTickets是否存在判断是否转发的是微信群。如果是android你要执行wx.getShareInfo()函数，如果是微信群就会调用success,不是微信群就会调用fail。必须调用wx.getshareInfo()获取群信息 包括 iv、encryptedData（换取openGId）现在上一下完整的代码：    //分享    onShareAppMessage: function (res) {        let that = this        return {            title: ‘分享的标题’,            path: ‘分享的页面链接’,            success: function (res) {                //getSystemInfo是为了获取当前设备信息，判断是android还是ios，如果是android                //还需要调用wx.getShareInfo()，只有当成功回调才是转发群，ios就只需判断shareTickets                //获取用户设备信息                wx.getSystemInfo({                    success: function (d) {                        console.log(d);                        //判断用户手机是IOS还是Android                        if (d.platform == ‘android’) {                            wx.getShareInfo({//获取群详细信息                                shareTicket: res.shareTickets,                                success: function (res) {                                    //这里写你分享到群之后要做的事情，比如增加次数什么的                                },                                fail: function (res) {//这个方法就是分享到的是好友，给一个提示                                    wx.showModal({                                        title: ‘提示’,                                        content: ‘分享好友无效，请分享群’,                                        success: function (res) {                                            if (res.confirm) {                                                console.log(‘用户点击确定’)                                            } else if (res.cancel) {                                                console.log(‘用户点击取消’)                                            }                                        }                                    })                                }                            })                        }                        if (d.platform == ‘ios’) {//如果用户的设备是IOS                            if (res.shareTickets != undefined) {                                console.log(“分享的是群”);                                wx.getShareInfo({                                    shareTicket: res.shareTickets,                                    success: function (res) {                                        //分享到群之后你要做的事情                                    }                                })                            } else {//分享到个人要做的事情，我给的是一个提示                                console.log(“分享的是个人”);                                wx.showModal({                                    title: ‘提示’,                                    content: ‘分享好友无效，请分享群’,                                    success: function (res) {                                        if (res.confirm) {                                            console.log(‘用户点击确定’)                                        } else if (res.cancel) {                                            console.log(‘用户点击取消’)                                        }                                    }                                })                            }                        }                    },                    fail: function (res) {                    }                })            }        }    },这里说一下分享到群的话，需要把返回的 iv，encryptedData，传给后台换取openGId（群ID）。好了，今天就整理这么多了，感觉我的判断逻辑不是很严谨，欢迎来指出，大家一块学习。 想要获得更多资料的  请微信搜索公众号 【热血科技】，关注一下即可。