我在学习Swift/Xcode,并试图创建一个具有三个页面的应用程序,您可以使用Page View Controller来回滑动。我遇到的问题在于UIViewController子类,更具体地说是viewDidLoad()函数。我得到的错误,如“值的类型'NameOfMyClass'没有成员数据源/委托”和“使用未解析的标识符”setViewControllers“我跟随了很多教程和检查其他帖子,但没有人似乎有这些问题。当我试图运行此我会得到一个黑色的屏幕,现在我得到一个由于终止信号15错误页面视图控制器viewDidLoad()问题
这里是其中的错误和弹出的相关代码:
import UIKit
class RootPageViewController: UIViewController,
UIPageViewControllerDataSource, UIPageViewControllerDelegate {
lazy var viewControllerList:[UIViewController] = {
return [self.VCInstance(name: "MissionOne"),
self.VCInstance(name: "MissionTwo"),
self.VCInstance(name: "MissionThree")]
}()
private func VCInstance(name: String) -> UIViewController {
return UIStoryboard(name: "Main", bundle:
nil).instantiateViewController(withIdentifier: name)
}
override func viewDidLoad() {
super.viewDidLoad()
self.dataSource = self //...has no member 'dataSource' error
self.delegate = self //...has no member 'delegate' error
if let MissionOne = viewControllerList.first {
setViewControllers([MissionOne], direction: .forward, animated:
true, completion: nil)
//use of unresolved indentifier 'setViewControllers' error
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
另一个问题我有,可能与此有关,是页面视图控制器不接受/识别我的类文件设置为故事板中的自定义类。
在此先感谢您的任何见解或建议。
的确修复了。谢谢! –