UIPage ViewController，我想从非uipage视图控制器导航另一个第二viewcontroller

Question

我需要代码为UIpageViewcontroller，它将像下面的MVC的图像工作。

PageViewController Flow

编辑：

当我点击 “其他视图控制器” 的下一个按钮，它会调用UIPageViewcontroller的视图控制器2。 上图中显示了确切的流程。

Answer 1

确定这是做

首先你需要在故事创造一个UIPageViewController和类设置为相同的代码

的一个新的快捷文件复制并粘贴此

的一种方式

class PageVC: UIPageViewController, UIPageViewControllerDataSource, UIPageViewControllerDelegate { 
//make sure the storyboard PageviewControllers class is set to this class or it wont work 

lazy var VCArray: [UIViewController] = { 
    //here is where your viewController pages go. in storyboard create multiple viewControllers and give them a storyboard ID here is where the storyboard IDs will be put in 
    return [self.VCInstance(name: "firstVC"), 
      self.VCInstance(name: "secondVC"), 
      self.VCInstance(name: "thirdVC")] 
}() 

private func VCInstance(name: String) -> UIViewController { 
     return UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: name) 
} 

override func viewDidLoad() { 
    super.viewDidLoad() 

    self.delegate = self 
    self.dataSource = self 

    if let firstVC = VCArray.first { 
     setViewControllers([firstVC], direction: .forward, animated: true, completion: nil) 
    } 


} 
override func viewDidLayoutSubviews() { 
    super.viewDidLayoutSubviews() 

    for view in self.view.subviews { 
     if view is UIScrollView { 
      view.frame = UIScreen.main.bounds 
     } else if view is UIPageControl { 
      view.backgroundColor = UIColor.clear 
     } 
    } 
} 

public func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? { 
    guard let viewControllerIndex = VCArray.index(of: viewController) else { 
     return nil 
    } 

    let previousIndex = viewControllerIndex - 1 

    guard previousIndex >= 0 else { 
     return VCArray.last 
    } 

    guard VCArray.count > previousIndex else { 
     return nil 
    } 
    return VCArray[previousIndex] 
} 

public func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? { 
    guard let viewControllerIndex = VCArray.index(of: viewController) else { 
     return nil 
    } 

    let nextIndex = viewControllerIndex + 1 

    guard nextIndex < VCArray.count else { 
     return VCArray.first 
    } 

    guard VCArray.count > nextIndex else { 
     return nil 
    } 
    return VCArray[nextIndex] 
} 
//this is optional for the page counter at the bottom 
public func presentationCount(for pageViewController: UIPageViewController) -> Int { 
    return VCArray.count 
} 
//this is optional for the page counter at the bottom 
public func presentationIndex(for pageViewController: UIPageViewController) -> Int { 
    guard let firstViewController = viewControllers?.first, let firstViewControllerIndex = VCArray.index(of: firstViewController) else { 
     return 0 
    } 
    return firstViewControllerIndex 
} 

}

Explanation-

上面的代码是非常可定制的，你可以改变是否你有一个页面计数器在底部或多少页面显示通过使用它将多个故事板viewControllers成为一个单页面的viewController，因为这些页面是单独的故事板viewControllers你可以把任何你想要的网页....如果你仍然困惑看看这个视频上YouTube