ios - 在启用垂直分页的 UIScrollView 中垂直滚动

Question

希望你能给我一些指导。我有一个垂直分页的 ScrollView 设置。我的问题是 View 大于屏幕(垂直)。我想要的效果是让 View 滚动到底部，然后翻到下一页。就像我下面的图片试图描绘的那样。

我尝试将 ScrollView 的大小和内容大小设置为正确偏移 View 的 View 大小。我只是无法滚动查看 View 的底部，它只是翻页到下一个 View 。

感谢您的任何建议。

class ViewController: UIViewController {

let scrollView = UIScrollView() // Create the scrollView

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.


    //Set up and add scrollView to view
    scrollView.frame = self.view.frame
    self.scrollView.pagingEnabled = true
    self.view.addSubview(scrollView)

    //An array of UIColors to add to the views
    let x : [UIColor] = [UIColor.blueColor(),UIColor.redColor(),UIColor.yellowColor()]

    //For each UIColor add a view that is 100px larger then the height of the scrollView
    for index in 0...x.count-1{
        //
        let subView = UIView(frame: CGRectMake(
            0, //x offset
            (self.scrollView.frame.height + 100) * CGFloat(index), //y offset
            self.scrollView.frame.width, // width
            (self.scrollView.frame.height + 100))) // height
        subView.backgroundColor = x[index] //background Color
        scrollView.addSubview(subView) // Add View

    }

    //
    let c = (self.scrollView.frame.size.height + 100) * CGFloat(x.count)
    self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.width, c)

    //Background Color
    self.view.backgroundColor = UIColor.greenColor()
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}
}

Answer 1

我发现最好的方法是对内容使用嵌套的 ScrollView 。这是我的代码最终的样子。

class ViewController: UIViewController, UIScrollViewDelegate {

let scrollView = ScrollView() // Create the scrollView

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.


    //Set up and add scrollView to view
    scrollView.frame = self.view.frame
    self.scrollView.pagingEnabled = true
    self.view.addSubview(scrollView)
    self.scrollView.delegate = self

    //An array of UIColors to add to the views
    let x : [UIColor] = [UIColor.blueColor(),UIColor.redColor(),UIColor.yellowColor()]

    //For each UIColor add a view that is 100px larger then the height of the scrollView
    for index in 0...x.count-1{
        //
        let subView = UIScrollView(frame: CGRectMake(
            0, //x offset
            (self.scrollView.frame.height * CGFloat(index)), //y offset
            self.scrollView.frame.width, // width
            (self.scrollView.frame.height))) // height

//Set the size of the content view
        let contentView = UIView(frame: CGRectMake(0, 0, self.view.frame.width, 1000))

        subView.contentSize = CGSizeMake(self.view.frame.width, contentView.frame.height)
        contentView.backgroundColor = x[index]
        subView.addSubview(contentView)
        scrollView.addSubview(subView) // Add View

    }

    //
    let c = (self.scrollView.frame.size.height) * CGFloat(x.count)
    self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.width, c)

    //Background Color
    self.view.backgroundColor = UIColor.greenColor()
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}
}