UIScrollView无法在Swift中滚动 [英] UIScrollView not scrolling in Swift

问题描述

我的UIScrollView不会向下滚动.我不知道为什么我已经关注了有关此问题的Apple文档.

My UIScrollView won't scroll down. I don't know why. I already followed Apple documentation regarding to this issue.

@IBOutlet weak var scroller: UIScrollView!

    override func viewDidLoad() {
    super.viewDidLoad()

    // Do any additional setup after loading the view.

}

override func viewDidLayoutSubviews() {
    scroller.scrollEnabled = true
    // Do any additional setup after loading the view
    scroller.contentSize = CGSizeMake(400, 2300)
}

推荐答案

您需要将UIScrollView的frame设置为小于contentsize.否则，它将不会滚动.

You need to set the frame of your UIScrollView so that it is less than the contentsize. Otherwise, it won't scroll.

此外，我建议您将scroller.contentSize = CGSizeMake(400, 2300)添加到viewDidLoad方法中.

Also, I would recommend that you add scroller.contentSize = CGSizeMake(400, 2300) to your viewDidLoad method.

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