IOS 10 Interractive transition - ios

Question

Swift 3 - IOS 10 - Xcode 8
I want create an interactive transition. I have two view controller :
RootViewController (Source - SVC)
PlayerViewController (Destination - DVC)
But, when my DVC is presented, it never execute my animation and related methods. It execute the system animation.
My RootViewController :
class RootViewController: UIViewController {
var transitionManager = PlayerTransitionManager()
override func viewDidLoad() {
super.viewDidLoad()
self.transitionManager.sourceViewController = self
// ...
}
}
My TransitionManager :
class PlayerTransitionManager: UIPercentDrivenInteractiveTransition, UIViewControllerAnimatedTransitioning, UIViewControllerTransitioningDelegate {
private var presenting = false
private var interactive = false
private var enterPanGesture: UIPanGestureRecognizer!
private var exitPanGesture: UIPanGestureRecognizer!
var sourceViewController: RootViewController! {
didSet {
self.enterPanGesture = UIPanGestureRecognizer()
self.enterPanGesture.addTarget(self, action:#selector(PlayerTransitionManager.handleOnstagePan(_:)))
self.sourceViewController.playerV.addGestureRecognizer(self.enterPanGesture)
}
}
var destinationViewController: UIViewController! {
didSet {
self.exitPanGesture = UIPanGestureRecognizer()
self.exitPanGesture.addTarget(self, action:#selector(PlayerTransitionManager.handleOffstagePan(_:)))
self.destinationViewController.view.addGestureRecognizer(self.exitPanGesture)
}
}
func handleOnstagePan(_ pan: UIPanGestureRecognizer){
let translation = pan.translation(in: pan.view!)
let d = translation.y / pan.view!.bounds.height * -0.5
switch (pan.state) {
case .began:
self.interactive = true
let storyboard = UIStoryboard(name: "Main", bundle: nil) // OK
let controller = storyboard.instantiateViewController(withIdentifier: "PlayerVC") // OK
controller.transitioningDelegate = self
controller.modalPresentationStyle = .custom
self.destinationViewController = controller
self.sourceViewController.present(controller, animated: true, completion: nil) // present with system annimation
break
case .changed:
// Never Executed
self.update(d)
break
default: // .Ended, .Cancelled, .Failed ...
// Finish or cancel.
// No impact because annimation never started
break
}
}
func handleOffstagePan(_ pan: UIPanGestureRecognizer){
// For dismiss
// Same problem
}
// MARK: UIViewControllerAnimatedTransitioning protocol methods
func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
// Nerver Executed
// ...
}
func offStage(amount: CGFloat) -> CGAffineTransform {
// Nerver Executed
// ...
}
func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
// Nerver Executed
// ...
}
// MARK: UIViewControllerTransitioningDelegate protocol methods
func animationControllerForPresentedController(presented: UIViewController, presentingController presenting: UIViewController, sourceController source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
// Nerver Executed
// ...
}
func animationControllerForDismissedController(dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
// Nerver Executed
// ...
}
func interactionControllerForPresentation(using animator: UIViewControllerAnimatedTransitioning) -> UIViewControllerInteractiveTransitioning? {
// Nerver Executed
// ...
}
func interactionControllerForDismissal(using animator: UIViewControllerAnimatedTransitioning) -> UIViewControllerInteractiveTransitioning? {
// Nerver Executed
// ...
}
}