Swift - UIScrollView不滚动 [英] Swift - UIScrollView not scrolling

问题描述

我的UIScrollView不会向下滚动。我不知道为什么。我已经关注了这个问题的苹果文档。

My UIScrollView wont scroll down. I dont 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)
}

请咨询。谢谢。

推荐答案

您需要设置UIScrollView的大小，使其小于contentsize。否则它不会滚动。

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

我还建议添加 scroller.contentSize = CGSizeMake（400,2300）到您的 viewDidLoad 方法。

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

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