关键词：
好的，我已经创建了一个网页浏览滑块应用。一切都很好，但现在我希望能够使用UIPinchGestureRecognizer捏合我的UIPageViewController。
我已经在代码中设置了所有内容，但是当我捏时，我仍然会收到此错误。
Terminating app due to uncaught exception 'NSInvalidArgumentException',
reason: '-[App.ViewController pinchDetected]: unrecognized selector sent
to instance 0x7faadc90c6f0'
如何使用UIPinchGestureRecognizer在UIPageViewController中使用我的pinchDetected函数？
如果我做错了，请现在就告诉我。 swift / ios新手
我的代码
class ViewController: UIViewController, UIPageViewControllerDataSource
var pageViewController: UIPageViewController!
private var allPages = [Page]()
var pages = NSMutableOrderedSet()
override func viewDidLoad()
super.viewDidLoad()
###PinchRecognizer
var pinchRecognizer = UIPinchGestureRecognizer(target:self, action:"pinchDetected")
self.view.addGestureRecognizer(pinchRecognizer)
self.pageViewController = self.storyboard?.instantiateViewControllerWithIdentifier("PageViewController") as! UIPageViewController
self.pageViewController.dataSource = self
var startVC = self.viewControllerAtIndex(0) as ContentViewController
var viewControllers = NSArray(object: startVC)
self.pageViewController.setViewControllers(viewControllers as [AnyObject], direction: .Forward, animated: true, completion: nil)
self.pageViewController.view.frame = CGRectMake(0, 30, self.view.frame.width, self.view.frame.size.height)
self.addChildViewController(self.pageViewController)
self.view.addSubview(self.pageViewController.view)
self.pageViewController.didMoveToParentViewController(self)
###PinchRecognizer Function
func pinchDetected(pinchRecognizer: UIPinchGestureRecognizer)
var scale: CGFloat = pinchRecognizer.scale;
self.view.transform = CGAffineTransformScale(self.view.transform, scale, scale);
pinchRecognizer.scale = 1.0;
func pageViewController(pageViewController: UIPageViewController, viewControllerBeforeViewController viewController: UIViewController) -> UIViewController?
var vc = viewController as! ContentViewController
var index = vc.pageIndex as Int
if (index == 0 || index == NSNotFound)
return nil
index--
return self.viewControllerAtIndex(index)
func pageViewController(pageViewController: UIPageViewController, viewControllerAfterViewController viewController: UIViewController) -> UIViewController?
var vc = viewController as! ContentViewController
var index = vc.pageIndex as Int
if (index == NSNotFound)
return nil
index++
if (index == self.pages.count)
return nil
return self.viewControllerAtIndex(index)
func viewControllerAtIndex(index: Int) -> ContentViewController
if ((self.pages.count == 0) || (index >= self.pages.count))
return ContentViewController()
var vc: ContentViewController = self.storyboard?.instantiateViewControllerWithIdentifier("ContentViewController") as! ContentViewController
###Store image in imageFile
var image = (pages.objectAtIndex(index) as! Page).image
vc.imageFile = image
vc.pageIndex = index
return vc
func presentationCountForPageViewController(pageViewController: UIPageViewController) -> Int
return self.pages.count
func presentationIndexForPageViewController(pageViewController: UIPageViewController) -> Int
return 0