我有一个详细的ViewController,单元格是由一个自定义的uitableviewdiffabledata detail定义的,如下所示:
{ (_, indexPath, item) -> UITableViewCell? in
let color = UIColor(named: "blue")!
if let _ = item as? TextFieldItem, let cell = tableView.dequeueReusableCell(withIdentifier: "textField", for: indexPath) as? TextFieldTableViewCell {
cell.textField.text = recipe.wrappedValue.name
cell.textField.placeholder = NSLocalizedString("name", comment: "")
cell.selectionStyle = .none
cell.textChanged = nameChanged
cell.backgroundColor = color
return cell
} else if let imageItem = item as? ImageItem, let imageCell = tableView.dequeueReusableCell(withIdentifier: "image", for: indexPath) as? ImageTableViewCell {
imageCell.setup(imageData: imageItem.imageData)
return imageCell
} else if let _ = item as? AmountItem, let amountCell = tableView.dequeueReusableCell(withIdentifier: "times", for: indexPath) as? AmountTableViewCell{
amountCell.setUp(with: recipe.wrappedValue.timesText, format: formatAmount)
amountCell.backgroundColor = color
return amountCell
} else if item is InfoItem {
return InfoTableViewCell(infoText: Binding(get: {
return recipe.wrappedValue.info
}, set: updateInfo), reuseIdentifier: "info")
} else if let stripItem = item as? InfoStripItem, let infoStripCell = tableView.dequeueReusableCell(withIdentifier: "infoStrip", for: indexPath) as? InfoStripTableViewCell {
infoStripCell.setUpCell(for: stripItem)
return infoStripCell
} else if let stepItem = item as? StepItem {
let stepCell = StepTableViewCell(style: .default, reuseIdentifier: "step")
stepCell.setUpCell(for: stepItem.step)
return stepCell
} else if let detailItem = item as? DetailItem, let cell = tableView.dequeueReusableCell(withIdentifier: "detail", for: indexPath) as? DetailTableViewCell {
let title = NSAttributedString(string: detailItem.text, attributes: [.foregroundColor : UIColor.label])
cell.textLabel?.attributedText = title
cell.accessoryType = .disclosureIndicator
cell.backgroundColor = color
return cell
}
return UITableViewCell()
}我想让InfoTableViewCell的定义如下:
class InfoTableViewCell: UITableViewCell {
@Binding private var infoText: String
private var textView = UITextView()
init(infoText: Binding<String>, reuseIdentifier: String?) {
self._infoText = infoText
super.init(style: .default, reuseIdentifier: reuseIdentifier)
setup()
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
private func setup() {
self.addSubview(textView)
textView.fillSuperview()
textView.text = infoText
textView.delegate = self
textView.backgroundColor = UIColor(named: "blue")!
textView.font = UIFont.preferredFont(forTextStyle: .body)
}
}
extension InfoTableViewCell: UITextViewDelegate {
func textViewDidChange(_ textView: UITextView) {
self.infoText = textView.text
}
}我想让这个单元格根据textField中的文本来调整大小。如何做到这一点有什么建议吗?另外,我正在使用LBTA工具用textField填充单元格的内容。
发布于 2020-08-17 01:39:08
根据我的经验,只需省略tableView(_:heightForRowAt:) tableview委托。然后,在创建单元格时,创建将单元格的顶部和底部绑定到内容的顶部和底部的约束。然后,单元格将增长或缩小以满足约束条件。
在自定义表格视图单元格类的init中:
textView.topAnchor.constraint(equalTo: self.topAnchor, constant: 8).isActive = true
textView.bottomAnchor.constraint(equalTo: self.bottomAnchor, constant: -8).isActive = true不确定LBTA工具将如何影响这种行为,因此这可能只适用于普通的UIKit。
https://stackoverflow.com/questions/63428159
复制相似问题