Custom transition between UIViewControllers does not work - ios

Question

I have object that manage custom transition:
#interface NavigationManager : NSObject <UIViewControllerAnimatedTransitioning>
-(NSTimeInterval)transitionDuration:(id<UIViewControllerContextTransitioning>)transitionContext;
-(void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext;
#property (nonatomic, assign) NSTimeInterval presentationDuration;
#property (nonatomic, assign) NSTimeInterval dismissalDuration;
#property (nonatomic, assign) BOOL isPresenting;
#end
#interface NavigationManager()
#property (nonatomic, strong) id<UIViewControllerContextTransitioning> transitionContext;
#end
#implementation NavigationManager
#synthesize presentationDuration, dismissalDuration, isPresenting;
-(id)init{
self = [super init];
if(self){
self.presentationDuration = 1.0;
self.dismissalDuration = 0.5;
}
return self;
}
-(NSTimeInterval)transitionDuration:(id<UIViewControllerContextTransitioning>)transitionContext{
return self.isPresenting ? self.presentationDuration : self.dismissalDuration;
}
-(void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext{
self.transitionContext = transitionContext;
if(self.isPresenting){
[self executePresentation:transitionContext];
}
else{
[self executeDismiss:transitionContext];
}
}
...
#end
And in class that should process implement transitions:
#interface ViewController : UIViewController <UIViewControllerTransitioningDelegate>
#property (nonatomic, strong) NavigationManager navigationManager;
..
#end
#implementation
...
//Here I`m doing navigation to new UIViewController
- (void)navigateToNewScreen
{
DetailedNewsController *secVC = [[DetailedNewsController alloc] init];
secVC.fullDescription = fullDescription;
secVC.headerImage = a.imageView.image;
self.transitioningDelegate = self;
[self.navigationController pushViewController:secVC animated:YES];
}
- (id<UIViewControllerAnimatedTransitioning>)animationControllerForPresentedController:(UIViewController *)presented
presentingController:(UIViewController *)presenting
sourceController:(UIViewController *)source
{
self.animationController.isPresenting = YES;
return self.animationController;
}
- (id <UIViewControllerAnimatedTransitioning>)animationControllerForDismissedController:(UIViewController *)dismissed
{
self.animationController.isPresenting = NO;
return self.animationManager;
}
#end
Default animation of transitioning is performed. Also navigation controller bar is not displayed after navigation.
UPDATE:
I thing problem in way how I`m creating UINavigationController in AppDelegate:
firstVC = [[ViewController alloc] init];
navController = [[UINavigationController alloc] initWithRootViewController:firstVC];
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window.backgroundColor = [UIColor blackColor];
self.window.rootViewController = navController;
[self.window makeKeyAndVisible];

Answer 1

I'll make an answer with the new information you have provided. The reason I make it an answer is that I just don't want to give you some copy paste code, but to try to give a brief explanation behind it. If I understand correctly, you now want to present a ViewController with a custom transition.
So you got the custom transition working by changing your code to this:
secVC.transitioningDelegate = self;
secVC.modalPresentationStyle = UIModalPresentationCustom;
[self presentViewController:secVC animated:YES completion:nil];
Since we got that up and running, what's currently missing is the NavigationBar of the ViewController you want to show. Since you're presenting a ViewController, it won't be contained within the existing NavigationController stack in which the the ViewController you're presenting is within.
Therefore, you need to wrap your VC you want to present within a UINavigationController.
[self presentViewController:[[UINavigationController alloc] initWithRootViewController:secVC] animated:YES completion:nil];