Question

我创建了一个可以在多个地方重用的自定义视图，我已经将该类名称分配给了视图控制器的子视图。这里我完全使用了XIB。在运行该应用程序时，它崩溃了，并遇到了错误“线程1：“ Bundle.main.loadNibNamed（” TripCancelAlert“，所有者：self，选项：nil）”处的EXC_BAD_ACCESS（code = 2，address = 0x7ffeee23be2c）“

查看课程：

array(['0', '+10:00', '+08:00', '+11:00', '+08:00', '+09:00'],
  dtype=object)

Answer 1

在超类下方找到您的视图。

请确保使用与xib（class）相同的名称来命名MyView.xib / MyView

class NibView: UIView {

    @IBOutlet var view: UIView!

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        commonInit()
    }

    override init(frame: CGRect) {
        super.init(frame: frame)
        commonInit()
    }

    func commonInit() {
        guard let viewFromNib = Bundle.main.loadNibNamed(className, owner: self, options: nil)?.first as? UIView
            else { fatalError("Could not load view from nib file.") }
        view = viewFromNib
        translatesAutoresizingMaskIntoConstraints = false
        view.translatesAutoresizingMaskIntoConstraints = false
        addPinnedSubview(view)

    }

    func addPinnedSubview(_ view: UIView, withInsets insets: UIEdgeInsets = .zero) {
        addSubview(view)
        let viewsDict: [String: UIView] = ["childView": view]
        var metrics: [String: Any] = [:]
        metrics["topSpace"] = insets.top
        metrics["bottomSpace"] = insets.bottom
        metrics["leftSpace"] = insets.left
        metrics["rightSpace"] = insets.right
        addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:|-(topSpace)-[childView]-(bottomSpace)-|",
                                                      options: [],
                                                      metrics: metrics,
                                                      views: viewsDict))
        addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:|-(leftSpace)-[childView]-(rightSpace)-|",
                                                      options: [],
                                                      metrics: metrics,
                                                      views: viewsDict))
    }
}

如何使用Xib创建自定义视图

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