![](/img/trans.png)
[英]How to update the status bar style when transitioning to a new view controller?
[英]page view controller not transitioning in the style it is coded to
Swift / iphone开发的新手您好,任何建议,不胜感激!
制作一个包含3个页面的基于页面的简单应用程序,但是在我的代码中将过渡样式设置为.scroll时,视图控制器使用.pageTurn样式过渡
让pageController = ViewController(transitionStyle:.scroll,navigationOrientation:.horizontal,选项:nil)
十分困惑,为什么过渡风格不遵循我的编码?
完整代码:
let pageController = ViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil)
class ViewController: UIPageViewController {
// page view controllers here
let cardsVC: UIViewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "CardsNavController")
let profileVC: UIViewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "ProfileNavController")
let matchesVC: UIViewController! = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "MatchesNavController")
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = UIColor.white
dataSource = self
// loads first view
setViewControllers([profileVC], direction: .forward, animated: true, completion: nil)
}
// load left view
func goToNextVC() {
let nextVC = pageViewController(self, viewControllerAfter: viewControllers![0] )!
setViewControllers([nextVC], direction: .forward, animated: true, completion: nil)
}
// load right view
func goToPreviousVC() {
let previousVC = pageViewController(self, viewControllerBefore: viewControllers![0] )!
setViewControllers([previousVC], direction: .reverse, animated: true, completion: nil)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
// MARK - UIPageViewControllerDataSource
extension ViewController: UIPageViewControllerDataSource {
func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
// navigate right
switch viewController {
case cardsVC:
return profileVC
case profileVC:
return nil
case matchesVC:
return cardsVC
default:
return nil
}
}
// navigate left
func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
switch viewController {
case cardsVC:
return matchesVC
case profileVC:
return cardsVC
case matchesVC:
return nil
default:
return nil
}
}
}
像这样使用:
required init?(coder: NSCoder) {
super.init(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil)
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.