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ここで問題になるのは、pageViewController実装を使用するとスワイプの動きです。私はそれを右から左に行ってほしいが、それは左からUIの経験のための自然ではないのですか?スワイプの方向PageViewController
私はXcode 7とSwift 2.2を使用していたとき、それは完全に動作していました... 私のコードをコピーして貼り付けた後、Xcode 8の提案を変更して以来、この変な動作があります。
import UIKit
class FirstEventViewController: UIViewController {
// FIXME: - The swipe gesture has to be from right to left when the view appears (PageControl not showing)
var pageViewController: UIPageViewController!
var titleEvents = [String]()
var pageImages: NSArray!
override func viewDidLoad() {
super.viewDidLoad()
pageImages = NSArray(objects: "supersmashbros","spiritodjsession","thomasdelortrio")
titleEvents = ["supersmashbros","spiritodjsession","thomasdelortrio"]
initiatePgVC()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
// MARK: - Navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
//TODO: CODE HERE
}
// MARK: - Private functions
/**
Function initializing the logic of the pageviewController
*/
func initiatePgVC() {
pageViewController = UIStoryboard(name:"Main", bundle:nil).instantiateViewController(withIdentifier: "PageViewController") as! UIPageViewController
pageViewController.dataSource = self
let startVC = viewControllerAtIndex(index: 0)
let viewControllers = NSArray(object: startVC) as! [UIViewController]
pageViewController.setViewControllers(viewControllers, direction: .forward, animated: true, completion: nil)
//pageViewController.view.frame = CGRect(x:0, y:65, width:self.view.frame.width, height:self.view.frame.size.height - 140)
pageViewController.view.frame = self.view.bounds
addChildViewController(pageViewController)
view.addSubview(pageViewController.view)
pageViewController.didMove(toParentViewController: self)
}
/**
Function associating the viewControllers
*/
func viewControllerAtIndex(index: Int)->SecondEventViewController{
if ((titleEvents.count == 0) || (index >= titleEvents.count)){
return SecondEventViewController()
}
let vc:SecondEventViewController = storyboard?.instantiateViewController(withIdentifier: "SecondEventViewController") as! SecondEventViewController
vc.imageFile = pageImages[index] as! String
vc.labelTitle = titleEvents[index]
vc.pageIndex = index
return vc
}
}
extension FirstEventViewController:UINavigationBarDelegate{
func position(for bar: UIBarPositioning) -> UIBarPosition {
return .topAttached
}
}
extension FirstEventViewController:UIPageViewControllerDataSource{
func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
let vc = viewController as! SecondEventViewController
var index = vc.pageIndex as Int
if (index == 0 || index == NSNotFound){
return nil
}
index = index-1
return viewControllerAtIndex(index: index)
}
func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
let vc = viewController as! SecondEventViewController
var index = vc.pageIndex as Int
if (index == NSNotFound){
return nil
}
index = index+1
if (index == titleEvents.count){
return nil
}
return viewControllerAtIndex(index: index)
}
func presentationCountForPageViewController(pageViewController: UIPageViewController) -> Int {
return titleEvents.count
}
func presentationIndexForPageViewController(pageViewController: UIPageViewController) -> Int {
return 0
}
}
は、それが方向を実装しているので、私は一度pageViewController.setViewControllers(viewControllers, direction: .forward, animated: true, completion: nil)
疑われるが、私は逆に変化しても、何も起こりません。
うん、。あなたは私に手がかりを与えました。実際に私は2つのメソッドを交換しなければならなかった、私のviewControllerAfterは私のviewControllerBeforeになり、逆も同様で、間違っていたインデックス – Skull0ne