小程序 订阅消息功能实现 wx.requestSubscribeMessage

写在前： 小程序 服务通知 订阅消息功能    小程序文档地址   （前端部分）

第一步，html 内容，添加按钮点击事件

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1 2	<text>{{textcontent}}</text> <button bindtap="subTap" hover-class="other-button-hover">允许订阅消息</button>

第二步，js 内容

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data: {     textcontent: '提示：未开启' },    // 检测是否开启  更新提示   testingTap: function() {     let that = this;     wx.getSetting({       withSubscriptions: true,       success(res) {         // console.log(res)         if (res.subscriptionsSetting.mainSwitch) {           if (res.subscriptionsSetting.itemSettings != null) {             let item = res.subscriptionsSetting.itemSettings.P2wDrfX0CYmme5mgnmyxVdbXMZFp1mjByg9dE4_YrdQ             if (item == "reject") {               that.setData({                 textcontent: '提示：您已经拒绝订阅消息'               })             } else if (item == "accept") {               that.setData({                 textcontent: '提示：您已经开启订阅消息'               })             } else if (item == "ban") {               that.setData({                 textcontent: '提示：您已经被后台封禁'               })             }           }         } else {           that.setData({             textcontent: '提示：订阅消息未开启'           })         }       }     })   },    //授权 subTap: function() {     let that = this;     wx.requestSubscribeMessage({       tmplIds: ['P2wDrfX0CYmme5mgnmyxVdbXMZFp1mjByg9dE4_YrdQ'],       success(res) {         that.setData({           textcontent: '提示：授权成功'         })       },       fail(res) {         that.setData({           textcontent: '提示：授权失败'         })       }     })   },