<video wx:if="{{item.type==='video'}}" hidden="{{videoLoading}}" src="{{item.src}}" wx:key="id" bindplay="handlePlay" class="video-item" show-bottom-progress="true" bindloadedmetadata="handleWaiting" play-btn-position="center" id="{{item.id}}" object-fit="{{videoClass}}"bindfullscreenchange="onFullScreenChange" ></video>
<view class="videoLoading" hidden="{{!videoLoading&&!imgLoading}}" >
<image style="height: 100%; width: 100%;" src="../../pages/product/images/loading.gif" mode=""/>
</view>
</view>
请具体描述问题出现的流程，并提供能复现问题的简单代码片段（https://developers.weixin.qq.com/miniprogram/dev/devtools/minicode.html）。