Custom push view controller with slide down animation - ios

Question

I would like to custom push and pop a view controller use pull down/up animation like this:
I try to change the y position but it doesn't work (it doesn't show up animation at all).
[self.navigationController pushViewController:nextController animated:NO];
self.view.frame = CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y, self.view.frame.size.width, self.view.frame.size.height);
[UIView animateWithDuration:0.6 animations:^{
self.view.frame = CGRectMake(0, -self.view.frame.size.height, self.view.frame.size.width, self.view.frame.size.height);
} completion:nil];
Is there any suggestion?
P/s: I have to use push view controller in this case instead of presentViewController
Update:
I try to use UINavigationControllerDelegate like this:
PropertyViewController.h
#interface PropertyViewController : UIViewController <UINavigationControllerDelegate>{
}
PropertyViewController.m
- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated{
NSLog(#"willShowViewController");
}
- (void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated{
NSLog(#"didShowViewController");
}
-(id<UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController animationControllerForOperation:(UINavigationControllerOperation)operation fromViewController:(UIViewController *)fromVC toViewController:(UIViewController *)toVC {
// THIS METHOD IS NOT CALLED AT ALL
NSLog(#"animationControllerForOperation");
TLTransitionAnimator *animator = [TLTransitionAnimator new];
animator.presenting = (operation == UINavigationControllerOperationPush);
animator.duration = 0.5;
return animator;
}
- (void)viewGallery{
// PUSH VIEW CONTROLLER
GalleryViewController* galleryController = [[GalleryViewController alloc] initWithNibName:#"GalleryViewController" bundle:nil];
galleryController.navigationController.delegate = self;
[self.navigationController pushViewController:galleryController animated:YES];
}
Update 2:
After fix the problem method not called with this line in PropertyViewController.m
self.navigationController.delegate = self;
I face with another problem.
The slide down animation on push does work, but the slide up doesn't .Here is my custom animation:
- (void)animateTransition:(id <UIViewControllerContextTransitioning>)transitionContext {
UIViewController* toViewController = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
UIViewController* fromViewController = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
[[transitionContext containerView] addSubview:toViewController.view];
if (self.presenting) { // push
fromViewController.view.transform = CGAffineTransformIdentity;
toViewController.view.transform = CGAffineTransformMakeTranslation(0, toViewController.view.frame.size.height);
}else{ // pop
fromViewController.view.transform = CGAffineTransformMakeTranslation(0, fromViewController.view.frame.size.height);
}
[UIView animateWithDuration:[self transitionDuration:transitionContext] animations:^{
if (self.presenting) { // push
fromViewController.view.transform = CGAffineTransformMakeTranslation(0, toViewController.view.frame.size.height);
toViewController.view.transform = CGAffineTransformMakeTranslation(0, toViewController.view.frame.size.height);
} else { // pop
fromViewController.view.transform = CGAffineTransformMakeTranslation(0, 0);
}
} completion:^(BOOL finished) {
toViewController.view.transform = CGAffineTransformIdentity;
[transitionContext completeTransition:![transitionContext transitionWasCancelled]];
}];
}
The problem 2:
The pull down animation only works on the first time, from the second times, layout renders wrong, I have no idea why this can happen.
Where am I wrong here?

Answer 1

You should Implement UIViewControllerAnimatedTransitioning.
Make your FromViewController.m conform to UINavigationControllerDelegate. Other sample code out there tells you to conform to UIViewControllerTransitioningDelegate, but that's only if you're presenting the ToViewController.
#interface ViewController : UIViewController <UINavigationControllerDelegate>
Return your custom transition animator object in the delegate callback method in FromViewController:
- (id <UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController
animationControllerForOperation:(UINavigationControllerOperation)operation
fromViewController:(UIViewController *)fromVC
toViewController:(UIViewController *)toVC {
TransitionAnimator *animator = [TransitionAnimator new];
animator.presenting = (operation == UINavigationControllerOperationPush);
return animator;
}
Create your custom TransitionAnimator animator class and paste these sample methods:
- (NSTimeInterval)transitionDuration:(id <UIViewControllerContextTransitioning>)transitionContext {
return 0.5f;
}
- (void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext
{
UIViewController* toViewController = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
UIViewController* fromViewController = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
[[transitionContext containerView] addSubview:toViewController.view];
if (self.presenting) {
toViewController.view.transform = CGAffineTransformMakeTranslation(0, toViewController.view.frame.size.height);
}
[UIView animateWithDuration:[self transitionDuration:transitionContext] animations:^{
if (self.presenting) {
toViewController.view.transform = CGAffineTransformIdentity;
} else {
fromViewController.view.transform = CGAffineTransformMakeTranslation(0, toViewController.view.frame.size.height);
}
} completion:^(BOOL finished) {
[transitionContext completeTransition:![transitionContext transitionWasCancelled]];
}];
}
Most of the implementation is from here, I just edited the transition method to your needs: https://stackoverflow.com/a/25026102/2242359
I still strongly recommend to go over some or all these guides:
http://www.teehanlax.com/blog/custom-uiviewcontroller-transitions/
http://www.objc.io/issue-5/view-controller-transitions.html
http://objectivetoast.com/2014/03/17/custom-transitions-on-ios/

Answer 2

Try this :
UIViewController *yourViewController = [[UIViewController alloc]init];
[UIView beginAnimations: #"Showinfo"context: nil];
[UIView setAnimationCurve: UIViewAnimationCurveEaseInOut];
[UIView setAnimationDuration:0.75];
[self.navigationController pushViewController: yourViewController animated:NO];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.navigationController.view cache:NO];
[UIView commitAnimations];