无法从nib实例化UIView。 “警告：无法加载任何Objective-C类信息” [英] Cannot instantiate UIView from nib. "warning: could not load any Objective-C class information"

问题描述

我得到无法加载任何Objective-C类信息。这将显着降低可用类型信息的质量。初始化此类实例时在控制台中发出警告：

I get "could not load any Objective-C class information. This will significantly reduce the quality of type information available." warning in the console while initializing an instance of this class:

@IBDesignable
class SystemMessage: UIView{

    @IBOutlet weak var lbl_message: UILabel!

    var view: UIView!

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

        setup()
    }

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

        setup()
    }

    func setup(){
        view = loadViewFromNib()

        view.autoresizingMask = [UIViewAutoresizing.FlexibleWidth, UIViewAutoresizing.FlexibleHeight]
        addSubview(view)
    }


    func loadViewFromNib() -> UIView{
        let bundle = NSBundle(forClass: self.dynamicType)
        let nib = UINib(nibName: "SystemMessage", bundle: bundle)
        let view = nib.instantiateWithOwner(self, options: nil)[0] as! UIView

        return view 
    }


}

执行停止在行让view = nib.instantiateWithOwner ... withThread 1：EXC_BAD_ACCESS（code = 2 ...）

Execution stops on line let view = nib.instantiateWithOwner... with "Thread 1: EXC_BAD_ACCESS(code=2...)"

这背后可能的原因是什么？

What could be the possible reason behind this?

推荐答案

找到了解。这一切都是为了理解xib是如何工作的。

Found the solution. It all comes to understanding of how xibs work.

我所做的是我为视图和文件所有者设置了类，并连接了View中的所有出口而不是文件的所有者。

What I did was that I set class for both view and File's Owner and connected all the outlets from the View rather than from the File's owner.

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