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Recent questions tagged 图片预加载组件

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图片预加载组件 需要传入当前滚动条距离 来判断 因此有多少个组件就会同时判断多少次
    首次使用uniapp 写app 一个图片预加载组件 需要根据，距离顶部和屏幕高度与传入当前滚动条距离 来判断 图片的显示 if(距离顶部高度 - 当前屏幕高度 < 0){ 显示图片 } 因此有多少个组件就会同时判断多少次 以首页是瀑布流展 ... 判断就会执行20次 因此 我想请教这样写 反复滚动 一直往下滚 会不会让手机 变卡？ 或者有什么办法优化一下吗？...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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