Swift - 滚动视图适合整个屏幕？

Question

我的滚动视图完全不适合屏幕。顶部和左侧有一个黑色边框。它看起来像这样。

下面是我用它来创建滚动视图代码：

imageView = UIImageView(image: UIImage(named: "Map 1.png")) 
scrollView = UIScrollView(frame: view.bounds) 
scrollView.backgroundColor = UIColor.blackColor() 
scrollView.contentSize = imageView.bounds.size 
scrollView.addSubview(imageView) 
view.addSubview(scrollView) 

Answer 1

也许你会删除 “调整滚动查看插图” 从UIViewController

Answer 2

imageView = UIImageView(image: UIImage(named: "Map 1.png")) 
imageView.contentMode = .ScaleToFill  
imageView.frame = CGRect(x: 0, y: 0, width: self.scrollView.frame.width , height: self.scrollView.frame.height) 

scrollView.contentSize.width = scrollView.frame.width  
scrollView.addSubview(imageView) 

view.addSubview(scrollView)