如何使用 xib 创建自定义视图

Posted 2023-03-12

【中文标题】如何使用 xib 创建自定义视图

【英文标题】：how to create a custom view using xib

【发布时间】：2019-06-12 12:20:03

【问题描述】：

我创建了一个可以在多个地方重用的自定义视图，我已经将这个类名分配给视图控制器的子视图。这里我完全使用 XIB 的。在运行这个应用程序时它会崩溃并出现错误“线程 1：EXC_BAD_ACCESS (code=2, address=0x7ffeee23be2c)" 在 "Bundle.main.loadNibNamed("TripCancelAlert", owner: self, options: nil)" 行

查看类：

class TripCancelAlert: UIView 


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

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

    func commonInit() 
        Bundle.main.loadNibNamed("TripCancelAlert", owner: self, options: nil)
       // self.addSubview(contentView)
    
    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) 
        // Get the new view controller using segue.destination.
        // Pass the selected object to the new view controller.
    
    */

【问题讨论】：

可能是medium.com/@umairhassanbaig/…可以帮你做到这一点。

Thankyou..Seriously 这个链接对我帮助很大。

【参考方案1】：

在超类下方找到您的视图。

请务必将您的xib 命名为与您的class 相同的名称（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))