将自定义Uiview添加到TableViewCell

Question

我在将我的自定义uiview添加到我的tableViewCell中一直没有成功。此自定义视图代表每个表视图单元格的自定义检查标记。我在没有故事板的情况下进行项目，我不确定如何以编程方式将此自定义的Uiview添加到我的UitableViewCell中。这是我的代码：

class CheckBoxView: UIView {
var isChecked: Bool
var checkBoxImageView: UIImageView
var checkBoxChanged :() -> () = { }
required init?(coder aDecoder: NSCoder) {
    self.isChecked = false
    self.checkBoxImageView = UIImageView(image: nil)
    super.init(coder: aDecoder)
    setup()
}
func setup() {
    self.layer.borderWidth = 1.0
    self.isUserInteractionEnabled = true
    self.checkBoxImageView.frame = CGRect(x: 2, y: 2, width: 25, height: 25)
    self.addSubview(self.checkBoxImageView)
    let selector: Selector = "checkBoxTapped"
    let tapRecognizer = UITapGestureRecognizer(target: self, action: selector)
    self.addGestureRecognizer(tapRecognizer)
}
func checkBoxTapped() {
    self.checkBoxChanged()
}
func markAsChecked() {
    self.checkBoxImageView.image = UIImage(named: "new_message_icon")
}
func markAsUnChecked() {
    self.checkBoxImageView.image = nil
}
}

这是我的tableviewcell：

class AddContactsCell: UITableViewCell {
let profileImageView: UIImageView = {
    let imageView = UIImageView()
    imageView.translatesAutoresizingMaskIntoConstraints = false
    imageView.layer.cornerRadius = 20
    imageView.layer.masksToBounds = true
    imageView.contentMode = .scaleAspectFill
    return imageView
}()
let checkBox: CheckBoxView = {
    let view = UIView() as! CheckBoxView
    view.backgroundColor = UIColor.blue
    view.translatesAutoresizingMaskIntoConstraints = false
    view.layer.cornerRadius = 16
    view.layer.masksToBounds = true
    return view
}()
override func layoutSubviews() {
    super.layoutSubviews()
    textLabel?.frame = CGRect(x: 100, y: textLabel!.frame.origin.y - 2, width: textLabel!.frame.width, height: textLabel!.frame.height)
    detailTextLabel?.frame = CGRect(x: 101, y: detailTextLabel!.frame.origin.y + 1, width: detailTextLabel!.frame.width, height: detailTextLabel!.frame.height)
}
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
    super.init(style: .subtitle, reuseIdentifier: reuseIdentifier)
    addSubview(profileImageView)
    self.addSubview(checkBox)
    //ios 9 constraint anchors
    //need x,y,width,height anchors
    profileImageView.leftAnchor.constraint(equalTo: self.leftAnchor, constant: 50).isActive = true
    profileImageView.centerYAnchor.constraint(equalTo: self.centerYAnchor).isActive = true
    profileImageView.widthAnchor.constraint(equalToConstant: 40).isActive = true
    profileImageView.heightAnchor.constraint(equalToConstant: 40).isActive = true
    checkBox.leftAnchor.constraint(equalTo: self.leftAnchor, constant: 10).isActive = true
    checkBox.centerYAnchor.constraint(equalTo: self.centerYAnchor).isActive = true
    checkBox.widthAnchor.constraint(equalToConstant: 30).isActive = true
    checkBox.heightAnchor.constraint(equalToConstant: 30).isActive = true
}
required init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}
}

如果您能告诉我添加Uiview的问题，我真的很感激。

Answer 1

您应该实例化CheckBoxView，并且不将正常的UIView施放到您的CheckboxView

更改此行：

let view = UIView() as! CheckBoxView

到此行

let view = CheckBoxView()