Ios 在UITableViewCell中滚动视图赢得'；不保存位置

我的

UITableView

中有一些

UIScrollView

s

我的问题是，如果我将第一个单元格中的滚动视图滚动到另一个位置，第四个单元格也将位于同一位置

第二次和第五次、第三次和第六次也一样

---

单元格中的滚动视图是否有保持其位置的方法？

您应该将

UIScrollView

s的实际内容偏移量保存在一个数组中，在自定义委托中滚动后检索该值，并将偏移量设置为

cellForRowAt

中保存的值

CustomCell.swift

weak var delegate: CellScrollViewDelegate?
let scrollView: UIScrollView!
var contentOffset: CGPoint!

func setUpCell() {
    scrollView.delegate = self
    scrollView.contentOffset = savedContentOffset
}


[...]

func scrollViewDidScroll(_ scrollView: UIScrollView) {
    delegate?.horizontalCellDidScroll(indexPath: indexPath, contentOffset: scrollView.contentOffset)
}

var cellScrollContentOffsets = [[CGPoint]]()

func horizontalCellDidScroll(indexPath: IndexPath, contentOffset: CGPoint) {
    cellScrollContentOffsets[indexPath.section][indexPath.row] = contentOffset
}

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "CellID", for: indexPath)
    cell.delegate = self
    cell.savedContentOffset = cellScrollContentOffsets[indexPath.section][indexPath.row]
    cell.setUpCell()

    return cell
}

protocol CellScrollViewDelegate: class {
    func horizontalCellDidScroll(indexPath: IndexPath, contentOffset: CGPoint)
}

TableViewController.swift

weak var delegate: CellScrollViewDelegate?
let scrollView: UIScrollView!
var contentOffset: CGPoint!

func setUpCell() {
    scrollView.delegate = self
    scrollView.contentOffset = savedContentOffset
}


[...]

func scrollViewDidScroll(_ scrollView: UIScrollView) {
    delegate?.horizontalCellDidScroll(indexPath: indexPath, contentOffset: scrollView.contentOffset)
}

var cellScrollContentOffsets = [[CGPoint]]()

func horizontalCellDidScroll(indexPath: IndexPath, contentOffset: CGPoint) {
    cellScrollContentOffsets[indexPath.section][indexPath.row] = contentOffset
}

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "CellID", for: indexPath)
    cell.delegate = self
    cell.savedContentOffset = cellScrollContentOffsets[indexPath.section][indexPath.row]
    cell.setUpCell()

    return cell
}

protocol CellScrollViewDelegate: class {
    func horizontalCellDidScroll(indexPath: IndexPath, contentOffset: CGPoint)
}

代表。swift

weak var delegate: CellScrollViewDelegate?
let scrollView: UIScrollView!
var contentOffset: CGPoint!

func setUpCell() {
    scrollView.delegate = self
    scrollView.contentOffset = savedContentOffset
}


[...]

func scrollViewDidScroll(_ scrollView: UIScrollView) {
    delegate?.horizontalCellDidScroll(indexPath: indexPath, contentOffset: scrollView.contentOffset)
}

var cellScrollContentOffsets = [[CGPoint]]()

func horizontalCellDidScroll(indexPath: IndexPath, contentOffset: CGPoint) {
    cellScrollContentOffsets[indexPath.section][indexPath.row] = contentOffset
}

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "CellID", for: indexPath)
    cell.delegate = self
    cell.savedContentOffset = cellScrollContentOffsets[indexPath.section][indexPath.row]
    cell.setUpCell()

    return cell
}

protocol CellScrollViewDelegate: class {
    func horizontalCellDidScroll(indexPath: IndexPath, contentOffset: CGPoint)
}