可可窗在替换视图时尺寸翻倍

Question

我正在尝试在运行时用另一个视图(及其视图控制器(替换一个视图。现在，当我这样做时，旧视图从窗口中消失，但新视图不会出现，窗口变为其原始宽度的两倍。如果我切换到全屏，我可以在应用程序窗口的左下角看到非常小的新视图。

有人知道为什么会发生这种情况吗？我已经尝试了几个小时，但我似乎找不到发生这种情况的原因。

为了替换视图(及其视图控制器(，我使用以下代码：

func exchangeDiashowViewController(for newDiashowViewController: NSViewController) {
    if let oldDiashowViewControllerAsStateObserver = self.diashowViewController as? DiashowStateObserver {
        DiashowManager.sharedInstance.remove(stateObserver: oldDiashowViewControllerAsStateObserver)
    }
    if let oldDiashowViewControllerAsSpeedObserver = self.diashowViewController as? DiashowSpeedObserver {
        DiashowManager.sharedInstance.remove(speedObserver: oldDiashowViewControllerAsSpeedObserver)
    }
    if let newDiashowViewControllerAsStateObserver = newDiashowViewController as? DiashowStateObserver {
        DiashowManager.sharedInstance.add(stateObserver: newDiashowViewControllerAsStateObserver)
    }
    if let newDiashowViewControllerAsSpeedObserver = newDiashowViewController as? DiashowSpeedObserver {
        DiashowManager.sharedInstance.add(speedObserver: newDiashowViewControllerAsSpeedObserver)
    }
    self.view.replaceSubview(self.diashowViewController.view, with: newDiashowViewController.view)
    self.diashowViewController.removeFromParentViewController()
    self.addChildViewController(newDiashowViewController)
    self.diashowViewController = newDiashowViewController
    let centerHorizontallyConstraint = NSLayoutConstraint(item: self.diashowViewController.view, attribute: .centerX, relatedBy: .equal, toItem: self.view, attribute: .centerX, multiplier: 1.0, constant: 0.0)
    let centerVerticallyConstraint = NSLayoutConstraint(item: self.diashowViewController.view, attribute: .centerY, relatedBy: .equal, toItem: self.view, attribute: .centerY, multiplier: 1.0, constant: 0.0)
    let widthConstraint = NSLayoutConstraint(item: self.diashowViewController.view, attribute: .width, relatedBy: .equal, toItem: self.view, attribute: .width, multiplier: 1.0, constant: 0.0)
    let heightConstraint = NSLayoutConstraint(item: self.diashowViewController.view, attribute: .height, relatedBy: .equal, toItem: self.view, attribute: .height, multiplier: 1.0, constant: 0.0)
    self.view.addConstraints([centerHorizontallyConstraint, centerVerticallyConstraint, widthConstraint, heightConstraint])
}

我真的希望有人有一个想法。提前非常感谢！

Answer 1

看来问题出self.view.replaceSubview()了。

我通过使用一切工作

self.diashowViewController.view.removeFromSuperview()
self.view.addSubview(newDiashowViewController.view)

相反。