<view style="background-color: #f4f4f4;height:1800rpx;">
    <view class="sharePosterContainer" wx:if="{{sharePosterUrl}}">
        <image catchtap="previewSharePoster" class="sharePoster" src="{{sharePosterUrl}}"></image>
        <view class="floatingFixedBottomButtonContainer buttonContainer">
            <button catchtap="savePoster" class="long-button" hoverClass="navigator-hover" style="width:500rpx">保存到手机相册</button>
        </view>
    </view>
</view>
<canvas canvasId="sharePoster" class="sharePosterCanvas"></canvas>
