Yosi found this snippet: http://blog.radi.ws/post/5924267283/custom-modal-uiviewcontroller-transitions
by Evadne Wu. This was so cool, and I think I made it a bit more fun by creating a UIViewController category to do that (I was a bit lazy, so I only implemented the Push in/out transition, but this can be easily extended):
//
// UIViewController+Transitions.h
// Labgoo Misc
//
// Created by Israel Roth on 3/4/12.
// Copyright (c) 2012 Labgoo LTD. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface UIViewController(Transitions)
- (void) presentModalViewController:(UIViewController *)modalViewController withPushDirection: (NSString *) direction;
- (void) dismissModalViewControllerWithPushDirection:(NSString *) direction;
@end
and the implementation:
//
// UiViewController+Transitions.m
// Labgoo Misc
//
// Created by Israel Roth on 3/4/12.
// Copyright (c) 2012 Labgoo LTD. All rights reserved.
//
#import "UIViewController+Transitions.h"
@implementation UIViewController(Transitions)
- (void) presentModalViewController:(UIViewController *)modalViewController withPushDirection: (NSString *) direction {
[CATransaction begin];
CATransition *transition = [CATransition animation];
transition.type = kCATransitionPush;
transition.subtype = direction;
transition.duration = 0.25f;
transition.fillMode = kCAFillModeForwards;
transition.removedOnCompletion = YES;
[[UIApplication sharedApplication].keyWindow.layer addAnimation:transition forKey:@"transition"];
[[UIApplication sharedApplication] beginIgnoringInteractionEvents];
[CATransaction setCompletionBlock: ^ {
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(transition.duration * NSEC_PER_SEC)), dispatch_get_main_queue(), ^ {
[[UIApplication sharedApplication] endIgnoringInteractionEvents];
});
}];
[self presentModalViewController:modalViewController animated:NO];
[CATransaction commit];
}
- (void) dismissModalViewControllerWithPushDirection:(NSString *) direction {
[CATransaction begin];
CATransition *transition = [CATransition animation];
transition.type = kCATransitionPush;
transition.subtype = direction;
transition.duration = 0.25f;
transition.fillMode = kCAFillModeForwards;
transition.removedOnCompletion = YES;
[[UIApplication sharedApplication].keyWindow.layer addAnimation:transition forKey:@"transition"];
[[UIApplication sharedApplication] beginIgnoringInteractionEvents];
[CATransaction setCompletionBlock: ^ {
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(transition.duration * NSEC_PER_SEC)), dispatch_get_main_queue(), ^ {
[[UIApplication sharedApplication] endIgnoringInteractionEvents];
});
}];
[self dismissModalViewControllerAnimated:NO];
[CATransaction commit];
}
@end
to use it, you import "UIViewController+Transitions.h" in your file and call the presentModalViewController:withPushDirection:
the direction parameter receives core animation transition sub-types such as kCATransitionFromRight
Enjoy...
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