iOS 11 Swift 4 iPhone X Safe Area 支持全屏ScrollView

Question

我目前将我的布局设计设置为一个视图控制器上的全屏滚动视图，我在其中添加其他视图控制器作为子视图以创建分页效果。在正常的 iphone 屏幕上，它工作得很好。然而，当运行在 iPhone X 上时，事情似乎偏离了中心，我可以在一页中多次翻页。

这是我设置滚动视图的代码

self.scrollView.contentSize = CGSize(width: self.view.frame.width, height: self.view.frame.size.height * 3)
        if #available(iOS 11.0, *) {
            self.scrollView.contentInsetAdjustmentBehavior = .never
        } else {
            // Fallback on earlier versions
        }


        let V1 = self.storyboard?.instantiateViewController(withIdentifier: "S1") as! UINavigationController!
        self.addChildViewController(V1!)
        self.scrollView.addSubview(V1!.view)
        V1?.didMove(toParentViewController: self)
        V1?.view.frame = scrollView.bounds
        myViewsArray.append(V1!)

        let V2 = self.storyboard?.instantiateViewController(withIdentifier: "S2") as UIViewController!
        self.addChildViewController(V2!)
        self.scrollView.addSubview(V2!.view)
        V2?.didMove(toParentViewController: self)
        V2?.view.frame = scrollView.bounds
        myViewsArray.append(V2!)

        var V1Frame: CGRect = V1!.view.frame
        V1Frame.origin.y = 2*self.view.frame.height
        V1?.view.frame = V1Frame

        var V2Frame: CGRect = V2!.view.frame
        V2Frame.origin.y = (self.view.frame.height)
        V2?.view.frame = V2Frame

        V2!.view.alpha = 1

我在故事板上有安全区域。

Answer 1

You can solve this easily.

1

2。

Answer 2

您可以使用 safe area layout guide 执行此操作并使用 link:

获取更多信息

https://medium.com/rosberryapps/ios-safe-area-ca10e919526f

你也可以在没有安全区域的情况下这样做：我为你准备了一个演示，在这个演示中，我们在滚动视图上添加了三个视图控制器，在另一个视图控制器上添加了滚动视图（ ContainerViewController)

ContainerViewController:

import UIKit

class ContainerViewController: UIViewController, UIScrollViewDelegate {

    @IBOutlet weak var scrollView: UIScrollView!

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        let V1 = self.storyboard?.instantiateViewController(withIdentifier: "first")
        self.addChildViewController(V1!)
        self.scrollView.addSubview(V1!.view)
        V1?.didMove(toParentViewController: self)
        V1?.view.frame = scrollView.bounds

        let V2 = self.storyboard?.instantiateViewController(withIdentifier: "second")
        self.addChildViewController(V2!)
        self.scrollView.addSubview(V2!.view)
        V2?.didMove(toParentViewController: self)
        V2?.view.frame = scrollView.bounds

        let V3 = self.storyboard?.instantiateViewController(withIdentifier: "third")
        self.addChildViewController(V3!)
        self.scrollView.addSubview(V3!.view)
        V3?.didMove(toParentViewController: self)
        V3?.view.frame = scrollView.bounds

        var V1Frame: CGRect = V1!.view.frame
        V1Frame.origin.y = 0
        V1?.view.frame = V1Frame

        var V2Frame: CGRect = V2!.view.frame
        V2Frame.origin.y = (self.view.frame.height)
        V2?.view.frame = V2Frame

        var V3Frame: CGRect = V3!.view.frame
        V3Frame.origin.y = (self.view.frame.height)*2
        V3?.view.frame = V3Frame
    }
    override func viewDidLayoutSubviews() {
        scrollView.contentSize = CGSize(width: UIScreen.main.bounds.width, height: UIScreen.main.bounds.height*3)
    }
}

Note: Remove top and bottom constraint from the safe area and add them from SuperView(for Scroll view, InnerView(FirstVC, SecondVC, ThirdVC))`

您可以检查演示项目的所有功能和限制。下载URL：https://www.dropbox.com/s/4ovfqmrtwt2i8yi/Whosebug.zip?dl=0

我已经在iPhoneX和iPhone6和iPhone8+

中测试了演示

Screenshots are below:

Answer 3

使用安全区域设置约束在这里你可以结帐...

https://developer.apple.com/ios/human-interface-guidelines/overview/iphone-x/

一旦您将滚动视图约束设置为安全区域..select 您的 viewController 场景和取消选中 Adjust scroll view insets 属性.

已更新

if #available(iOS 11.0, *) {
   fullScreenScrollView?.contentInsetAdjustmentBehavior = .always
 }

iOS 11 Swift 4 iPhone X Safe Area 支持全屏ScrollView

iOS 11 Swift 4 iPhone X Safe Area Support of full screen ScrollView

ios

swift

safearealayoutguide

iphone-x