showTabBarReddot or setTabBarBadge无效没报错

Question

最近开发个小程序，需要实现其它用户发送评论就在消息的tab那里显示个红点的功能，但是无论是调用showTabBarReddot还是setTabBarBadge，tabbar都没有任何反应，真不知道该如何解决┭┮﹏┭┮。下面发一下代码给大家看看。

referComment: function (e){ 

    // 只能用缓存来传评论数据

    var criticism = wx.getStorageSync('criticism')

    var userInfo = wx.getStorageSync('userInfo')

    var commentCreatTime = utils.formatTime(new Date())

    var result = [userInfo.nickName, userInfo.avatarUrl, commentCreatTime, e.detail.value.comment, this.data.touristID, this.data.figureID, []]

    criticism.push(result)

    if(result[3]){

      this.refer(criticism, 'comment')

      news.add({

        data:{

          acceptor: this.data.creatorID,

          writer: [userInfo.nickName, userInfo.avatarUrl,this.data.touristID],

          content: [e.detail.value.comment, this.data.figureID],

          time: commentCreatTime,

          url: `/pages/details/details?id=${this.data.pageID}`,

          newsType:'消息回复',

          essayType: this.data.type

        }

      })   // 意思是用户提交了评论后，先判断是否为空评论，将评论信息写入数据库，然后在消息的tabbar那里显示红点

      wx.showTabBarRedDot({

        index: 1,

        success: res => { console.log(res) },

        fail: res => { console.error }

      })

} 

<form bindsubmit='referComment' report-submit='{{true}}'>

     <view class='form'>

      <textarea class='comment' name='comment' value='{{content}}' placeholder-style='color:#000;width:800rpx;z-index:-1' focus='{{focus}}' bindfocus="focusText"  bindblur="blurText">{{placeholder}}</textarea>

      <view class='uploadImages'>     

        <view class="addimages">

          <block wx:for='{{figures}}' wx:key="*this">

            <image src='{{figures[index]}}' style='margin:0 0 0 20rpx'></image>

          </block>

          <image bindtap='addimages' src="/images/plus-square-fill.png" style='width:50px;height:50px;margin-left: 20rpx;'></image>

          <image bindtap='delimages' src="/images/minus-square-fill.png" style='width:50px;height:50px'></image>

        </view>

      </view>

      <button form-type='submit' type='primary' wx:if='{{signIn}}' style='background-color:#8de7bb;width:90%;color: white;' bindtap='reddot'>发送</button>

    </view>

</form> 

Answer 1

https://blog.csdn.net/jackjia2015/article/details/86589445