Question

我尝试将UITableView.automaticDimension既用于heightForRowAt，又用于估计的HeightFortowRowAt，单元格的相同结果不会随着视图的动态变化而改变。

以下是一些相关代码：

从视图控制器中：

func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
   // return getSize(large: 70, medium: 60, small: 50)
    return UITableView.automaticDimension
}

func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat {
    return UITableView.automaticDimension
}

在表格视图单元格中：

func setup(_ lineItem: MenuItem) {
    contentView.backgroundColor = .white
    configureTransactionView(lineItem)
    configureItemNameLabel(lineItem)
    configurePriceLabel(lineItem)
    configureSizeLabel(lineItem)
}

private func configureTransactionView(_ lineItem: MenuItem) {
    itemView = UIView()
    guard let itemView = itemView else { return }
    itemView.clipsToBounds = true
    itemView.layer.cornerRadius = 5
    itemView.layer.borderColor = UIColor.lightGray.cgColor
    itemView.layer.borderWidth = 0.5
    itemView.backgroundColor = .white
    contentView.addSubview(itemView)
    itemView.translatesAutoresizingMaskIntoConstraints = false
    itemView.centerXAnchor.constraint(equalTo: contentView.centerXAnchor).isActive = true
    itemView.widthAnchor.constraint(equalTo: contentView.widthAnchor, multiplier: 0.8).isActive = true
    itemView.topAnchor.constraint(equalTo: contentView.topAnchor, constant: 4).isActive = true
    let fontSize = getSize(large: 14, medium: 13.5, small: 12)
    guard let topFont = UIFont(name: AppFont.secondary.name, size: fontSize) else { return }
    let heightForTopLabel = heightForView(text: lineItem.name, font: topFont, width: 195)
    var text = ""
    if lineItem.quantity > 1 && lineItem.toppings != nil {
        text = generateTextWithMultipleSelected(lineItem)
    } else if lineItem.quantity > 1 {
        if lineItem.size != nil {
            guard let size = lineItem.size else { return }
            text = "\(size) | Quantity: \(lineItem.quantity)"
        } else {
            text = "Quantity: \(lineItem.quantity)"
        }
    } else if lineItem.toppings != nil {
        text = generateTextWithSingleSelected(lineItem)
    } else {
        if lineItem.size != nil {
            guard let size = lineItem.size else { return }
            text = "\(size)"
        } else {
            text = ""
        }
    }
    let bottomFontSize = getSize(large: 11, medium: 10.5, small: 9.5)
    guard let font = UIFont(name: AppFont.secondary.name, size: bottomFontSize) else { return }
    let heightForBottomLabel = heightForView(text: text, font: font, width: 200)
    let height = heightForTopLabel + heightForBottomLabel + 10
    itemView.heightAnchor.constraint(equalToConstant: height).isActive = true
}

Answer 1

在您的TableViewController viewDidLoad（）中添加以下内容：

 tableView.rowHeight = UITableView.automaticDimension
 tableView.estimatedRowHeight = 600 //change according to your needs

还删除heightForRowAtIndexPath和estimetedHeightForRowAtIndexPath方法。

这是一个很好的教程： https://www.raywenderlich.com/8549-self-sizing-table-view-cells

我的TableViewCell不会根据其内部动态变化的视图来更改其高度

1 个答案: