我想在UITableviewCell中创建一个自定义单元格,以便我可以更改单元格内容以及从ModelView传递的参数。但是,当我滚动时,布局被破坏了。
我试图将代码分为两部分,如下所示。
声明变量部分
初始化部件包含布局定义
但是如果我分成 2 部分,我无法更改布局和变量,因为 Init Part 首先在"声明变量部分"之前运行。此外,我尝试更改"声明变量部分"中的布局,布局已损坏。我应该如何编码以传递参数以更改单元格内容?下面是我代码的一部分。"baseView"的布局将被打破。
[ViewModel]
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let item = items[indexPath.section]
if let item = item as? AnniversaryViewModelContentsItem, let cell = tableView.dequeueReusableCell(withIdentifier: ANContentCell.identifier, for: indexPath) as? ANContentCell {
cell.selectionStyle = .none
cell.item = item.contents[indexPath.row]
cell.contentView.setNeedsLayout()
cell.contentView.layoutIfNeeded()
return cell
}
return UITableViewCell()
}
[Cell: ANContentCell]
// Declare Variable Part ---------------------------------------------------------------------
........
var item: ANContent? {
didSet {
guard let item = item?.dataPerRow else {
return
}
let graphArray = [graph00, graph01, graph02, graph03]
if item.mode == 1 {
baseView.anchor(
top: self.safeAreaLayoutGuide.topAnchor,
leading: self.safeAreaLayoutGuide.leadingAnchor,
bottom: self.safeAreaLayoutGuide.bottomAnchor,
trailing: self.safeAreaLayoutGuide.trailingAnchor,
padding: .init(top: 0, left:0, bottom:0, right:0), size: .init(width:0, height: item.hight )
)
}
for i in 0...(graphArray.count - 1){
// Graph Anchor
graphArray[i].anchor(
top: baseView.safeAreaLayoutGuide.topAnchor,
leading: baseView.leadingAnchor,
bottom: nil,
trailing: nil,
padding: .init(
top: item.top,
left: item.left,
bottom:0,
right:0
),
size: .init(
width:item.width,
height: item.height
)
)
.........
}
}
}
private let baseView: UIView = {
var baseView = UIView()
baseView.backgroundColor = .clear
return baseView
}()
var graph00: UIView = {
let graph = UIView()
return graph
}()
var graph01: UIView = {
let graph = UIView()
return graph
}()
var graph02: UIView = {
let graph = UIView()
return graph
}()
var graph03: UIView = {
let graph = UIView()
return graph
}()
// Init parts ---------------------------------------------------------------------
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
let graphArray = [graph00, graph01, graph02, graph03]
// Add Object
addSubview(baseView)
for i in 0...(graphArray.count - 1){
baseView.addSubview(graphArray[i])
}
}
尝试替换::
var graph00: UIView = {
let graph = UIView()
return graph
}()
自:
var graph00 = UIView()
并将此代码添加到您的单元格中:
override func layoutIfNeeded() {
self.subviews.forEach{$0.layoutIfNeeded()}
}