<page-container show="{{isShowPdfView}}" position="bottom" overlay="{{true}}" duration="300" bind:afterleave="onPdfAfterLeave">

<view class="detail-page">

<web-view src="{{pdfUrl}}"></web-view>           

</view>

</page-container>

当 isShowPdfView 为 fasle的时候，page-container还是会展示