Ios 以编程方式创建和推送视图控制器

我正在创建并按下一个按钮上的视图控制器，使用下面的代码作为附加到按钮的实用方法

 func createSmartController() -> UIViewController{

    //Create controller and get view
                var controller = UIViewController()
                var view = controller.view
                var tag:String
                var count = 0

                //Create and layout scroll view
                var scrollView = UIScrollView()
                scrollView.setTranslatesAutoresizingMaskIntoConstraints(false)
                view.addSubview(scrollView)
                view.addConstraint(NSLayoutConstraint(item: scrollView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: view, attribute: NSLayoutAttribute.Top, multiplier: 1.0, constant: 0.0))
                view.addConstraint(NSLayoutConstraint(item: scrollView, attribute: NSLayoutAttribute.Bottom, relatedBy: NSLayoutRelation.Equal, toItem: view, attribute: NSLayoutAttribute.Bottom, multiplier: 1.0, constant: 0.0))
                view.addConstraint(NSLayoutConstraint(item: scrollView, attribute: NSLayoutAttribute.Leading, relatedBy: NSLayoutRelation.Equal, toItem: view, attribute: NSLayoutAttribute.Leading, multiplier: 1.0, constant: 0.0))
                view.addConstraint(NSLayoutConstraint(item: scrollView, attribute: NSLayoutAttribute.Trailing, relatedBy: NSLayoutRelation.Equal, toItem: view, attribute: NSLayoutAttribute.Trailing, multiplier: 1.0, constant: 0.0))

                //Create and add content view
                var scrollContent = UIView()
                scrollContent.setTranslatesAutoresizingMaskIntoConstraints(false)
                scrollView.addSubview(scrollContent)
                scrollView.addConstraint(NSLayoutConstraint(item: scrollContent, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: scrollView, attribute: NSLayoutAttribute.Top, multiplier: 1.0, constant: 0.0))
                scrollView.addConstraint(NSLayoutConstraint(item: scrollContent, attribute: NSLayoutAttribute.Bottom, relatedBy: NSLayoutRelation.Equal, toItem: scrollView, attribute: NSLayoutAttribute.Bottom, multiplier: 1.0, constant: 0.0))
                scrollView.addConstraint(NSLayoutConstraint(item: scrollContent, attribute: NSLayoutAttribute.Leading, relatedBy: NSLayoutRelation.Equal, toItem: scrollView, attribute: NSLayoutAttribute.Leading, multiplier: 1.0, constant: 0.0))
                scrollView.addConstraint(NSLayoutConstraint(item: scrollContent, attribute: NSLayoutAttribute.Trailing, relatedBy: NSLayoutRelation.Equal, toItem: scrollView, attribute: NSLayoutAttribute.Trailing, multiplier: 1.0, constant: 0.0))
                view.addConstraint(NSLayoutConstraint(item: scrollContent, attribute: NSLayoutAttribute.Leading, relatedBy: NSLayoutRelation.Equal, toItem: view, attribute: NSLayoutAttribute.Leading, multiplier: 1.0, constant: 0.0))
                view.addConstraint(NSLayoutConstraint(item: scrollContent, attribute: NSLayoutAttribute.Trailing, relatedBy: NSLayoutRelation.Equal, toItem: view, attribute: NSLayoutAttribute.Trailing, multiplier: 1.0, constant: 0.0))

                //Create all buttons
                var buttons = self.GetMyButtons() //Just returns and array of UIButtons

                //Add buttons to view with constraints
                var prevButton:String
                var constH:NSArray
                var constV:NSArray
                var hString:String
                var vString:String
                var index = 0
                for button in buttons{
                    button.setTranslatesAutoresizingMaskIntoConstraints(false)
                    scrollContent.addSubview(button)
                    button.bounds.size.height = 90
                    scrollContent.addConstraint(NSLayoutConstraint(item: button, attribute: NSLayoutAttribute.Leading, relatedBy: NSLayoutRelation.Equal, toItem: scrollContent, attribute: NSLayoutAttribute.Leading, multiplier: 1.0, constant: 0.0))
                    scrollContent.addConstraint(NSLayoutConstraint(item: button, attribute: NSLayoutAttribute.Trailing, relatedBy: NSLayoutRelation.Equal, toItem: scrollContent, attribute: NSLayoutAttribute.Trailing, multiplier: 1.0, constant: 0.0))
                    if(index == 0){
                        scrollContent.addConstraint(NSLayoutConstraint(item: button, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: scrollContent, attribute: NSLayoutAttribute.Top, multiplier: 1.0, constant: 8.0))
                    }
                    else{
                        scrollContent.addConstraint(NSLayoutConstraint(item: button, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: buttons[index-1], attribute: NSLayoutAttribute.Bottom, multiplier: 1.0, constant: 8.0))
                    }
                    if(index == buttons.count-1){
                        scrollContent.addConstraint(NSLayoutConstraint(item: button, attribute: NSLayoutAttribute.Bottom, relatedBy: NSLayoutRelation.Equal, toItem: scrollContent, attribute: NSLayoutAttribute.Bottom, multiplier: 1.0, constant: -8.0))
                    }
                    index++
                }
return controller
    }

在下面的调用中使用此方法生成并按下按钮touchupinside上的视图控制器

var controller = button.getSmartController()
            self.navigationController?.pushViewController(controller, animated: true)

---

但是，被推送的视图控制器似乎根本没有视图。它是黑色/空白的。推送动画似乎也有一点问题。

所有背景色都不存在，显示为黑色。以编程方式创建元素时，还必须添加样式，否则所有默认值都将返回null/black。

我在这里没有看到任何objective-c。错误的标签？@CrimsonChris我接受swift和objective-c作为我的大部分ios内容，因为翻译很简单。你正在寻求帮助调试swift代码。请不要为此使用objective-c标记。@CrimsonChris我将接受使用这两种语言的帮助。您的createSmartController函数没有返回值。您是否找到了出现轻微故障的原因？我也有一个。