showTabBarReddot or setTabBarBadge无效没报错? - WXOPEN Club

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>

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

</view>

</form>

但无论怎么搞，那个api不报错也没效果，都不知道该怎么办……