更改 UITableViewCell 中详细信息按钮的图像

Change image of detail button inside UITableViewCell

我有这个 UITableViewCell:

我想要这样的结果:(请原谅我的错误编辑)

这意味着基本上将 detail button 的图像更改为另一个图像。

我当前的单元格代码

let cell = UITableViewCell(style: .default, reuseIdentifier: nil)

cell.textLabel?.text = NSLocalizedString("New", comment: "Add a new element")
cell.imageView?.image = UIImage(systemName: "plus.circle.fill")

cell.backgroundColor = .secondarySystemBackground
        
cell.imageView?.preferredSymbolConfiguration = .init(scale: UIImage.SymbolScale.large)
        
cell.selectionStyle = .none
        
cell.accessoryType = .detailButton
        

我试过的

我把它放在上面的代码之后。 (无效)

        for (i, view) in cell.subviews.enumerated() {
            if view as? UIButton != nil {
                (cell.subviews[i] as! UIButton).setImage(UIImage(systemName: "clock"), for: .normal) // Never executes
            } else {
                for (i, view) in view.subviews.enumerated() {
                    if view as? UIButton != nil {
                        (cell.subviews[i] as! UIButton).setImage(UIImage(systemName: "clock"), for: .normal) // Never executes
                    }
                }
            }
        }

此代码在单元格的 subviews 中搜索 UIButton,如果找到,则更改其图像。但它始终找不到按钮!

查看层次结构

提前致谢。

我认为不需要循环,只需使用 cellForRow 函数并设置单元格的 accessorView 属性。

func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell! {

   // Other code...

   cell.accessoryType = .none
        
   let button = UIButton(type: .custom)
   button.setImage(UIImage(systemName: "clock"), for: .normal)
   button.setPreferredSymbolConfiguration(.init(scale: UIImage.SymbolScale.large), forImageIn: .normal)
   button.sizeToFit()
   button.addTarget(self, action: #selector(historyPressed), for: .touchUpInside)
   cell.accessoryView = button

   return cell
}

@objc func historyPressed() {
    print("History button pressed")
}

根据@zeytin 的回答,我做了一个 UITableViewCell 扩展以便于使用,同时也提高了利润率:

extension UITableViewCell {
/// Set accessory image to any UIImage.
/// - Made by:
///  Ori HPT
/// - Parameters:
///   - image: The image to set.
///   - color: The tint color of the image.
///   - selector: The action of the accessory.
///   - target: The target of the action. (self)
func setAccessoryImage(to image: UIImage, color: UIColor, selector: Selector?, target: Any?) {
    self.accessoryType = .none

    let button = UIButton(type: .custom)
    button.setImage(image, for: .normal)
    let size = self.textLabel?.font.pointSize ?? UIFont.preferredFont(forTextStyle: .body).pointSize
    button.setPreferredSymbolConfiguration(.init(pointSize: size, weight: .regular, scale: UIImage.SymbolScale.large), forImageIn: .normal)
    button.sizeToFit()
    if selector != nil {
        button.addTarget(target, action: selector!, for: .touchUpInside)
    }
    button.tintColor = color
    self.accessoryView = button
}
}

使用示例:

cell.setAccessoryImage(to: UIImage(systemName: "clock")!, color: .systemBlue, selector: #selector(historyPressed), target: self)

这是最终结果,对比系统的.detailButton附件: