加载XIB此类不符合密钥的密钥值编码要求 [英] Load XIB this class is not key value coding-compliant for the key

问题描述

我只创建了名称为 PopupViewForViewMoreDetail 的自定义 UIView ，我想在我的中添加此自定义视图ViewController ，但每次低于错误

由于未捕获的异常 NSUnknownKeyException而终止应用程序，原因： [< 0x7f8155f2e430 > setValue：forUndefinedKey：]：此类不兼容键mainView的键值编码。'

如果我删除 mainView 的> IBOutlet ，则另一个变量将显示错误。

下面是我的代码

 导入UIKit 
 
类PopupViewForViewMoreDetail：UIView {
 
 @IBOutlet var darkBGView：UIView！ 
 @IBOutlet var externalView：UIView！ 
 @IBOutlet var mainView：UIView！ 
 @IBOutlet var btnClose：UIButton！ 
 
覆盖init（frame：CGRect）{
 super.init（frame：frame）
} 
 
是否需要init？（编码器aDecoder：NSCoder） {
 super.init（coder：aDecoder）
} 
} 
  

，然后将此视图添加到我的viewController类中，如下所示。

 让viewMoreDetailPopUp = Bundle.main.loadNibNamed（ PopupViewForViewMoreDetail，所有者：自我，选项：无）？ PopupViewForViewMoreDetail 
 self.view.addSubview（viewMoreDetailPopUp）
  

下面是我的屏幕截图IBOutlets

我也在下面进行了检查答案，但没有帮助我。

第3步：
删除所有网点，然后再次重新出口

I just create custom UIView with name PopupViewForViewMoreDetail and I want to add this custom view in my ViewController but each time getting below error

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

if I remove IBOutlet of mainView then It will be display error for another variable.

Below is my code

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)
    }
}

and I'm adding this view in my viewController class like below.

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

Below is my screenshot for IBOutlets

I also checked below answer but didn't help me.

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

Guide me where I'm going wrong in my code ?

解决方案

try this :

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

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