关于左右联动的问题

[knyel]

我通过如下方式，虽然实现了左右联动，但是不知道为什么反应特别的慢，请问您知道原因吗

methods: {
scroll (e) {
let scrollTop = e.mp.detail.scrollTop
this.currentY = Math.abs(Math.round(scrollTop))
}
},
computed: {
currentIndex () {
for (let i = 0; i < this.foodListHeights.length - 1; i++) {
let heightBottom = this.foodListHeights[i]
let heightTop = this.foodListHeights[i + 1]
// 对滑动后currentY值不足的情况进行修正
let diff = Math.abs(this.currentY - heightTop)
if (diff < 5) {
this.currentY = heightTop
}
// 判断currentY当前所在的区间
if (this.currentY < heightTop && this.currentY >= heightBottom) {
return i
}
}
}
}

[xjonson]

我也碰到了，安卓下反应很慢，ios下好点，还没解决

[hubei207]

我也碰到这个问题，找不到原因。
//右边内容区域滚动
onScroll(e) {
this.contentId = "";
let scrollTop = e.target.scrollTop;
let domListHeight = this.listHeight;
if (scrollTop >= domListHeight[domListHeight.length - 1] - this.contentHeight) {
return;
} else if(scrollTop > 0 && scrollTop < domListHeight[0]){
this.currentIndex = 0;
}
for (let i = 0; i < domListHeight.length; i++) {
if(scrollTop >= domListHeight[i - 1] && scrollTop < domListHeight[i]) {
this.currentIndex = i;
}
}
},