将子类添加到Storyboard崩溃 [英] Adding subclass to Storyboard crashes

问题描述

这是我的UIView类：

This is my class of a UIView:

class overlap: UIView{
    init() {
        super.init(frame: UIScreen.main.bounds)
    }
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        fatalError("init(coder:) has not been implemented")
    }
}

<它应该只是填满屏幕。当我在Storyboard中添加视图并将约束固定到屏幕边缘时，它会在我启动应用程序时崩溃。出现错误，如上面的代码所述。

It should just fill up the screen. When I add the view in Storyboard with constraints pinned to the edges of the screen, it crashes when I launch the app. The error comes up as stated in the code above.

以编程方式创建和添加子类与此init函数一起使用：

Creating and adding the subclass programmatically works with this init function:

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

但我希望它可以通过Storyboard重复使用，而无需添加代码。我的代码有什么问题，它甚至可能是我想要的吗？

But I want it reusable through Storyboard, without adding code. What is wrong with my code, and is it even possible what I want?

谢谢！

推荐答案

我启动应用程序时崩溃

it crashes when I launch the app

因为这就是你的代码告诉它要做。

Because that is what your code told it to do.

required init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)
    fatalError("init(coder:) has not been implemented")
}

fatalError 表示让我崩溃。

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