wxml代码：

<view class="splice-page">

  <!--隐藏canvas-->

  <canvas canvas-id="tempCanvas" style="width:750rpx;height:{{totalHeight}}px;position:absolute;left:-999999px"></canvas>

  <!--保存按钮-->

  <view class="saveButton" wx:if="{{readuSave}}" bindtap="saveImgToPhone" style="background:url('../frame/background-pink.jpg')"> <test class="icon-save"></test></view>

  <!--拼长图页面-->

  <scroll-view scroll-y class="longImage" wx:if="{{page=='longImages'}}" style="height:{{imgViewHeight}}px">

    <view class="img-wrapbox" wx:for="{{longImageSrcs}}" wx:key="*this">

      <image src="{{item}}" mode="widthFix" data-idx="{{index}}" catchlongtap="gotoDelete" catchtap="quitDelete"></image>

      <text class="deleteTextBox" wx:if="{{whichDeleteShow==index}}" bindtap="deleteImg" style="top:50%">删除这张？</text>

    </view>

  </scroll-view>

  <!--拼相框页面-->

<view class="photoFrame" wx:if="{{page==='photoFrame'}}" style="height:{{frameHeight}}px" bindtouchstart="uploadScaleStart" bindtouchmove="uploadScaleMove" bindtouchend="uploadScaleEnd">

<image class="frame" src="{{frameSrc}}" mode="widthFix"></image>

<image class="photo" src="{{photoSrc}}" style="width:{{photoWidth}}px;height:{{photoHeight}}px;top:{{photoTop}}px;left:{{photoLeft}}px"  disable-scroll="true"></image>

</view>

<!--拼长图页面的底部工具栏-->

<view class="toolbar-bottom" wx:if="{{page==='longImages'}}">

  <view bindtap="addImages"><text class="icon-listadd"></text><text class="text">添加图片</text></view>

</view>

<!--相框页面的底部工具栏-->

<view class="toolbar-bottom" wx:if="{{page==='photoFrame'}}">

  <view bindtap="addFrame"><text class="icon-frame"></text><text class="text">选择相框</text></view>

  <view bindtap="addPhoto"><text class="icon-photo"></text><text class="text">添加照片</text></view>

</view>

<!--相框选择窗口-->

<view class="frameChoose" wx:if="{{isFrameChoose}}">

  <view class="frameChoose-top"><text class="farmeChoose-top-left">选择相框</text><text class="farmeChoose-top-right" bindtap="closeFrameChoose"></text> </view>

<scroll-view scroll-y>

  <view wx:for="{{frameSrcs}}" wx:key="*this" data-src="{{item.src}}" class="frameBox" bindtap="chooseFrame">

    <image src="{{'../frame'+item.src}}" mode="aspectFit"></image><text>{{item.title}}</text>

  </view>

</scroll-view>

</view>

</view>

调试错误：

VM56 WAService.js:2 TypeError: Cannot read property 'windowWidth' of undefined

    at vt.onLoad (index.js? [sm]:27)

    at vt.<anonymous> (VM56 WAService.js:2)

    at vt.r.__callPageLifeTime__ (VM56 WAService.js:2)

    at nn (VM56 WAService.js:2)

    at VM56 WAService.js:2

    at cn (VM56 WAService.js:2)

    at Function.<anonymous> (VM56 WAService.js:2)