ios - 如何将一个 UIViewController 作为屏幕的一部分
<p><p>我需要一个 UIPageViewController 来在屏幕顶部制作我的图像的幻灯片...我认为一个很好的例子是 Airbnb 应用程序，当您选择房子时，您将被推送到顶部包含的 ViewController PageViewController 中的图像数组(我认为)</p>
<p>我不得不说我有一个由 collectionView 提供支持的应用程序，我希望它出现在我的顶部 UICollectionViewCell...</p>
<p>我还发现了一些关于使用容器的信息，但我不知道如何添加...</p>
<p>还有一点是我不使用 StoryBoard ...</p>
<pre><code>import UIKit
class ImageCell: UICollectionViewCell {
override init(frame: CGRect) {
super.init(frame: frame)
setupView() }
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
let imageView : UIImageView = {
let image = UIImageView()
image.image = #imageLiteral(resourceName: "Apple_Watch_Main")
image.translatesAutoresizingMaskIntoConstraints = false
return image
}()
func setupView() {
backgroundColor = .black
addSubview(imageView)
addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:||", options: NSLayoutFormatOptions(), metrics: nil, views: ["v0" : imageView]))
addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:||", options: NSLayoutFormatOptions(), metrics: nil, views: ["v0" : imageView]))
}
}
</code></pre>
<p>这是我要添加 UIPageViewController 的单元格</p>
<p>我找到了答案</p>
<p>我做了一个这样的类(class)</p>
<pre><code>class PageViewController: UIPageViewController , UIPageViewControllerDataSource{
override func viewDidLoad() {
super.viewDidLoad()
dataSource = self
let frameViewController = FrameViewController()
frameViewController.imageName = imageNames.first
let viewControllers =
setViewControllers(viewControllers, direction: .forward, animated: true, completion: nil)
}
let imageNames = ["Apple_Watch_Main" , "Pic2" , "Pic3"]
func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
let currentImageName = (viewController as! FrameViewController).imageName
let currentIndex = imageNames.index(of: currentImageName!)
if currentIndex! > 0 {
let frameViewController = FrameViewController()
frameViewController.imageName = imageNames
return frameViewController
}
return nil
}
func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
let currentImageName = (viewController as! FrameViewController).imageName
let currentIndex = imageNames.index(of: currentImageName!)
if currentIndex! < imageNames.count - 1 {
let frameViewController = FrameViewController()
frameViewController.imageName = imageNames
return frameViewController
}
return nil
}
}
</code></pre>
<p>在我的 Collection View 中，我将我的第一个单元格完全为空，所以它就像一个窗口，然后我将 subviewController 和页面 Controller 的 View 添加到该单元格，现在它工作得很好</p>
<p>这是代码</p>
<pre><code>override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
switch indexPath.item {
case 0 :
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellId, for: indexPath) as!ImageCell
let pagecontroller = PageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil)
self.addChildViewController(pagecontroller)
cell.addSubview(pagecontroller.view)
pagecontroller.view.frame = CGRect(x: 0, y: 0, width: view.frame.width, height: view.frame.height/3)
return cell
case 1 :
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "filterandorganize", for: indexPath) as! FilterAndOrganize
return cell
case 2 :
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Offers", for: indexPath) as! Offers
return cell
case 3 :
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "OfferedProducts", for: indexPath) as! OfferedProducts
cell.firstViewController = self
return cell
default:
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Offers", for: indexPath) as! Offers
return cell
}
}
</code></pre>
<p>你看到的情况是 0(我的第一个单元格)我添加了它</p>
<p>效果很好</p>
<p> <a href="/image/V4psQ.jpg" rel="noreferrer noopener nofollow"><img src="/image/V4psQ.jpg" alt="this is the view"/></a> </p>
<p> <a href="/image/aN62n.png" rel="noreferrer noopener nofollow"><img src="/image/aN62n.png" alt="this is the view when you scroll "/></a> </p></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>我把答案写成编辑，效果很好</p></p>
<p style="font-size: 20px;">关于ios - 如何将一个 UIViewController 作为屏幕的一部分，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/46262112/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/46262112/
</a>
</p>
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