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背景：

我有 4 个 .XIB 文件，它们以编程方式初始化为要通过 self.view.addSubview(UIView) 方法调用到屏幕的子视图。

    //Initialize Associate Degree Selection UIView and prepare contraints
    degreeAuditAssociatesView = instanceFromNib(XIBFilename: "degreeAuditAssociate")
    degreeAuditAssociatesView?.frame = self.view.bounds
    degreeAuditAssociatesView?.autoresizingMask = [UIViewAutoresizing.flexibleWidth,UIViewAutoresizing.flexibleHeight]
    loadSavedCheckboxes()

    //Initialize Associate Degree Selection Results UIView and prepare contraints
    degreeAuditAssociatesViewResults = instanceFromNib(XIBFilename: "degreeAuditAssociateResults")
    degreeAuditAssociatesViewResults?.frame = self.view.bounds
    degreeAuditAssociatesViewResults?.autoresizingMask = [UIViewAutoresizing.flexibleWidth,UIViewAutoresizing.flexibleHeight]

    //Initialize Bachelors Degree Selection UIView and prepare contraints
    degreeAuditBachelorsView = instanceFromNib(XIBFilename: "degreeAuditBachelors")
    degreeAuditBachelorsView?.frame = self.view.bounds
    degreeAuditBachelorsView?.autoresizingMask = [UIViewAutoresizing.flexibleWidth,UIViewAutoresizing.flexibleHeight]
    loadSavedCheckboxes()

    //Initialize Bachelors Degree Selection Results UIView and prepare contraints
    degreeAuditBachelorsViewResults = instanceFromNib(XIBFilename: "degreeAuditBachelorsResults")
    degreeAuditBachelorsViewResults?.frame = self.view.bounds
    degreeAuditBachelorsViewResults?.autoresizingMask = [UIViewAutoresizing.flexibleWidth,UIViewAutoresizing.flexibleHeight]

当我调用self.view.addSubview(degreeAuditBachelorsViewResults!)时，视图会正确显示此 XIB UIView 并相应地填充所有文本框和显示元素。

问题： 当我调用self.view.addSubview(degreeAuditAssociatesViewResults!)（第二个代码块）时，视图会显示此 XIB UIView，但不会填充文本框中的任何数据。

奇怪的是 当我删除代码并且从不初始化第四个 UIView（第四个代码块）（degreeAuditBachelorsViewResults）时，degreeAuditAssociateResults UIView 加载没有问题。

当我在代码块中移动时，（块 2）或（块 4）都没有显示，所有文本元素都填充了信息。我感觉它与 addSubview(UIView) 方法有关，不接受任何信息。

请帮助，我已经用完了选项。

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1 回答 1

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这是为了将来参考这个问题。如果两个视图具有相同的引用出口并且正在从 XIB 文件以编程方式初始化。最后初始化的 UI 视图将连接参考插座。如果可能，每个视图都应引用其单独的出口。

于 2018-04-18T19:36:57.347 回答