不需要swiper,直接使用wx.previewImage.自带swiper,缩放,长按保存,收藏,转发等功能.          <mp-cell> <view class="weui-uploader__title">预览</view> <view class="weui-uploader__files"> <block wx:for="{{files}}"   wx:for-item="image" wx:key="image"> <view class="weui-uploader__file"> <image class="weui-uploader__img" src="{{image}}"                         data-src="{{image}}" bindtap="previewImage"></image> </view> </block> </view> <view class="weui-uploader__input-box" wx:if='{{3-files.length}}'> <view class="weui-uploader__input" bindtap="chooseImage"></view> </view> </mp-cell>

先用wx.notifyBLECharacteristicValueChange吧