how to present a viewcontroller using interactive transition

Question

my requirement is when i swipe from right of the screen(viewcontroller A) then need to push to next viewcontroller(viewcontroller B) using interactive transition.Use the same mechanism for dismiss also, when i swipe from left of the screen(viewcontroller B) it dismiss the controller using interactive transition. How can wen implement it in right way .I have implemented dismiss a viewcontroller using interactive transition but can't able to implement pushing to a viewcontroller using interactive transition

   #import "AMSimpleAnimatedDismissal.h"

@implementation AMSimpleAnimatedDismissal
-(NSTimeInterval)transitionDuration:(id<UIViewControllerContextTransitioning>)transitionContext
{
    return 1.5f;
}

-(void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext
{
    UIViewController *fromVC = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
    UIViewController *toVC = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
    [[transitionContext containerView]addSubview:toVC.view];
    CGRect toFrame = toVC.view.frame;
    CGRect initialFrame = fromVC.view.frame;
    toVC.view.frame = CGRectMake(-320 ,0, CGRectGetWidth(toFrame) , CGRectGetHeight(toFrame));

    CGRect finalFrame = CGRectMake(initialFrame.size.width, initialFrame.origin.y, initialFrame.size.width, initialFrame.size.height);
    UIViewAnimationOptions opts = UIViewAnimationOptionCurveLinear;
    [UIView animateWithDuration:1.0 delay:0 options:opts animations:^{
        fromVC.view.frame = finalFrame;
        toVC.view.frame = CGRectMake(0, 0, CGRectGetWidth(fromVC.view.frame), CGRectGetHeight(fromVC.view.frame));
    } completion:^(BOOL finished) {
       [transitionContext completeTransition:![transitionContext transitionWasCancelled]];
    }];

}

these are my line of code for interactive transition section

I am not exactly clear about your requirement, from what i understand the best method to implement this may be using swipe gesture by UISwipeGestureRecognizer class — Dileep, Apr 09 '14 at 09:10
actually in iOS 7, if you had properly created UINavigationController and pushed to it viewControllers - then swipe from left to right should return you on previous controller — Volodymyr B., Apr 09 '14 at 10:38
@SAKrisT: i know that it's default feature of ios 7 but my need to not that when make swipe from left to right.it look like viewcontroller pop over the previous viewcontroller but i need viewcontroller should move like scrollview ,pageviewcontroller like that...scrollview is not practical in my case — abymathew, Apr 09 '14 at 13:24

score 2 · Answer 1 · edited Jun 16 '14 at 14:47

It is possible to set the swipe gesture's direction: when the action method gets called, simply check the swipe's direction and if the direction is UISwipeGestureRecognizerDirectionRight then use [self.navigationController popViewControllerAnimated:BOOL]. You may want to add a "isPop" BOOL property to AMSimpleAnimatedDismissal and let this class to handle both presentation and dismissal.

score 0 · Answer 2 · answered Oct 30 '14 at 02:34

If doing interactive custom transitions with with a navigation controller, you must:

Specify the delegate for your UINavigationController

Your UINavigationControllerDelegate must specify the animation controller in the following delegate protocol method:

- (id<UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController
                                  animationControllerForOperation:(UINavigationControllerOperation)operation
                                               fromViewController:(UIViewController *)fromVC
                                                 toViewController:(UIViewController *)toVC

If you want the push to be interactive you have to specify an interaction controller, too, in the following method:

- (id<UIViewControllerInteractiveTransitioning>)navigationController:(UINavigationController *)navigationController
                         interactionControllerForAnimationController:(id<UIViewControllerAnimatedTransitioning>)animationController

This method should generally return a UIPercentDrivenInteractiveTransition if initiated by gesture, and return nil if not.

You must add the gesture recognizer (e.g., a UISwipeFromEdgeGestureRecognizer) on the view, which would initiate the transition and update the UIPercentDrivenInteractiveTransition returned by the above interactionControllerForAnimationController method, and complete or cancel the transition when the gesture was done.

how to present a viewcontroller using interactive transition

2 Answers2