Exc_Bad_Access 从 Xib 加载 CustomView 时

Question

CustomView 中的 IBOutlets 将为零。

我已经创建了自定义视图（xib）。

请查找图片以获取更多信息。

class TextFieldView: UIView {

@IBOutlet var contentView: TextFieldView!
@IBOutlet weak var customTextField: UITextField!
@IBOutlet weak var rightButton: UIButton!
@IBOutlet weak var placeHolderLabel: UILabel!

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

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

override func awakeFromNib() {
    super.awakeFromNib()
}

func commonInit() 
{
let bundle = Bundle(for: type(of: self))
bundle.loadNibNamed("TextFieldView", owner: self, options: nil)
customTextField.backgroundColor = UIColor.green
NSLog("Called")
}

exc_bad_access 仍然抛出错误。（在 loadNibNamed 代码行中）

Answer 1

Swift 3 版本

这是对我有用的解决方案。确保您在 IB 中的文件对象具有分配给它的 TextFieldView 类（而不是 UIView 本身）。还要确保您的所有 IBOutlets 都连接到正确的位置，否则您可能会遇到麻烦。

class TextFieldView: UIView {

    @IBOutlet var contentView: TextFieldView!
    @IBOutlet weak var customTextField: UITextField!
    @IBOutlet weak var rightButton: UIButton!
    @IBOutlet weak var placeHolderLabel: UILabel!


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

                commonInit()
            }

        //This lets us use TextFieldView in IB
        required init?(coder aDecoder: NSCoder) {
            super.init(coder: aDecoder)
            commonInit()
        }

        private func commonInit() {

                 Bundle(for: TextFieldView.self).loadNibNamed("TextFieldView", owner: self, options: nil)
                //Positioning content so it fills view space
                contentView.frame = self.bounds
                contentView.autoresizingMask = [.flexibleHeight, .flexibleWidth]
                addSubview(contentView)
            }

Answer 2

你需要这样的东西：

/// This view must be connected with the main view of the XIB.
@IBOutlet private var view: UIView!

/// This method is used when creating an `ApexView` with code.
override init(frame: CGRect)
{
    super.init(frame: frame)

    initView()
}

/// This method is called when instantiated from a XIB.
required init?(coder aDecoder: NSCoder)
{
    super.init(coder: aDecoder)

    initView()
}

private func initView()
{
    /// Fill in the name of your XIB. I assumed it `"TextFieldView"`.
    Bundle.main.loadNibNamed("TextFieldView", owner: self, options: nil)

    self.view.frame = CGRect(x: 0.0, y: 0.0, width: self.width, height: self.height)
    self.addSubview(self.view!)

    ...
}