ios - 设置对象或调用函数 EXC_BAD_ACCESS 时出错(代码=257)

Question

我创建了一些自定义 UIView，并在我的项目中的另一个 UIView 中实现。 我在调用某些函数或为某些对象设置值时发生崩溃，但在设置属性时没有发生崩溃。 请参阅下面的代码以正确理解代码和问题。

class SearchProfileDetailView: UIView {

    @IBOutlet weak var userInfoTable: UITableView!

    var userObject: UserObject?

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

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

    func loadViewFromNib() {
        let bundle = Bundle(for: type(of: self))
        let nib = UINib(nibName: "SearchProfileDetailView", bundle: bundle)
        let view = nib.instantiate(withOwner: self, options: nil)[0] as! UIView
        view.frame = bounds
        self.addSubview(view);

    }

    func setColor() {
        self.backgroundColor = UIColor.red
    }
}

我已经在另一个 UIView 中使用了这个 SearchProfileDetailView 以及界面构建器和分配的 socket ，请参阅下面的代码。

class SearchResultView: UIView {

    @IBOutlet weak var profileDetailView: SearchProfileDetailView!

    var currentIndex: Int?

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

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

    func loadViewFromNib() {
        let bundle = Bundle(for: type(of: self))
        let nib = UINib(nibName: "SearchResultView", bundle: bundle)
        let view = nib.instantiate(withOwner: self, options: nil)[0] as! UIView
        view.frame = bounds
        self.addSubview(view);
    }
    func setUserProfile(userObject: UserObject) {
        profileDetailView.backgroundColor = UIColor.red  // Not Crashed      
        profileDetailView.userObject = userObject //Crashed with error mentioned in title of question
        profileDetailView.setColor() ////Crashed with error mentioned in title of question
    }
}

Crashed while calling profileDetailView.setColor() and profileDetailView.userObject = userObject But not crashed on profileDetailView.backgroundColor = UIColor.red

现在我已经通过界面生成器将这个 SearchResultView 使用到 UIViewController 中。

class ExploreViewController: UIViewController {

      @IBOutlet weak var searchResultView: SearchResultView!

      func getResult() {
           SearchAPIHandler().search(params: parameters) {[weak self] (responseData) in
           DispatchQueue.main.async {
                  guard let strongSelf = self else {
                            return
                   }
                   if let users = responseData.users, !users.isEmpty {
                          strongSelf.searchResultView.setUserProfile(userObject: users[0])
                   }
              }

      }
}

Answer 1

我已经尝试了很多，现在我知道问题出在我的界面生成器上。

没有模块。

我检查了“从目标继承模块”，一切正常。