ios - 加载 XIB 此类与键的键值编码不兼容

Question

我刚刚创建了名为 PopupViewForViewMoreDetail 的自定义 UIView，我想在我的 ViewController 中添加这个自定义 View ，但每次都出现以下错误

Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<0x7f8155f2e430> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key mainView.'

如果我删除 ma​​inView 的 IBOutlet 那么它将显示另一个变量的错误。

下面是我的代码

import UIKit

class PopupViewForViewMoreDetail: UIView {

    @IBOutlet var darkBGView: UIView!
    @IBOutlet var outerView: UIView!
    @IBOutlet var mainView: UIView!
    @IBOutlet var btnClose: UIButton!

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

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

我正在将这个 View 添加到我的 viewController 类中，如下所示。

 let viewMoreDetailPopUp =  Bundle.main.loadNibNamed("PopupViewForViewMoreDetail", owner: self, options: nil)?.first as! PopupViewForViewMoreDetail
        self.view.addSubview(viewMoreDetailPopUp)

下面是我的IBOutlets

截图

我也检查了下面的答案，但没有帮助我。

What does this mean? "'NSUnknownKeyException', reason: … this class is not key value coding-compliant for the key X"

请指导我的代码哪里出错了？

Answer 1

试试这个:

step 1:

let viewMoreDetailPopUp =  UINib(nibName: "PopupViewForViewMoreDetail", bundle: nil).instantiate(withOwner: self, options: nil).first as! PopupViewForViewMoreDetail

step 2: make sure you're setting class for the view instead of File's Owner

Step 3 : Remove all outlets and re-outlet again