IB Designables：无法呈现和更新自动布局状态

问题描述

我有一个自定义视图（ xib ）里面有一个 UIButton ，我做了一个id IBDesignable 执行以下操作：

I have a custom view (xib) that has a UIButton inside of it, I made id IBDesignable doing the following:

UserView.swift

import UIKit

@IBDesignable
class UserView: UIView {

    @IBOutlet var view: UIView!
    @IBOutlet weak var userButton: UIButton!

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

    }

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

    fileprivate func load() {
        Bundle.main.loadNibNamed("UserView", owner: self, options: nil)
        addSubview(view)
        self.frame = bounds
    }

}

UserView.xib

• 添加了UIButton并设置了约束


• 设置文件所有者： UserView

• Added the UIButton and set constraints
• Set the File's Owner: UserView

我在 Bar Button Item 并分配了UserView类，但没有渲染，我得到以下构建错误：

I added a UIView to a Bar Button Item and assigned UserView class but nothing is rendering, and I got the following build error:

我目前的环境： Xcode 9 ，Swift 4

My currently environment: Xcode 9, Swift 4

推荐答案

我在 Podfile 的末尾添加此脚本并执行<$ c再次$ c> pod install 。所以我可以正常构建我的项目。

I add this script at the end of my Podfile and performed pod install again. So I could build normally my project.

post_install do |installer|
    installer.pods_project.build_configurations.each do |config|
        config.build_settings.delete('CODE_SIGNING_ALLOWED')
        config.build_settings.delete('CODE_SIGNING_REQUIRED')
    end
end

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