ios – 自定义Segue动画

- (void)perform {

    UIViewController *sourceViewController = (UIViewController *) self.sourceViewController;
    UIViewController *desTinationViewController = (UIViewController *) self.desTinationViewController;

    [desTinationViewController.view setTransform:CGAffineTransformMakeScale(0.5,0.5)];
    [desTinationViewController.view setAlpha:0.0];

    [UIView animateWithDuration:0.5
                          delay:0.0
                        options:UIViewAnimationCurveEaSEOut 
                     animations:^{
                         [desTinationViewController.view setTransform:CGAffineTransformMakeScale(1.0,1.0)];
                         [desTinationViewController.view setAlpha:1.0];
                         [sourceViewController.navigationController pushViewController:desTinationViewController animated:NO];
                     } 
                     completion:^(BOOL finished){
                     }];

}

感觉kludgy,但您可以尝试添加desTinationViewController.view作为动画之前的子视图,然后当动画完成后,删除它并将其推回而不用动画.在过渡之前解决黑屏,但也可能不完美,这取决于您想要使用导航栏的内容,但也可能更接近：

[sourceViewController.view addSubview:desTinationViewController.view];
[desTinationViewController.view setFrame:sourceViewController.view.window.frame];
[desTinationViewController.view setTransform:CGAffineTransformMakeScale(0.5,0.5)];
[desTinationViewController.view setAlpha:1.0];

[UIView animateWithDuration:0.5
                      delay:0.0
                    options:UIViewAnimationCurveEaSEOut 
                 animations:^{
                     [desTinationViewController.view setTransform:CGAffineTransformMakeScale(1.0,1.0)];
                     [desTinationViewController.view setAlpha:1.0];
                 } 
                 completion:^(BOOL finished){
                     [desTinationViewController.view removeFromSuperview];
                     [sourceViewController.navigationController pushViewController:desTinationViewController animated:NO];
                 }];

注意,有效的iOS 7,您将使用自定义转换.有关更多信息,请参阅WWDC 2013 Custom Transitions Using View Controllers.

例如,如果尝试使用导航控制器进行自定义转换,则第一个视图控制器将自己指定为导航控制器的代理：

self.navigationController.delegate = self;

然后,它将分别指定push和pop的自定义动画师：

- (id<UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController
                                  animationControllerForOperation:(UINavigationControllerOperation)operation
                                               fromViewController:(UIViewController *)fromVC
                                                 toViewController:(UIViewController *)toVC
{
    if (operation == UINavigationControllerOperationPush) {
        return [[PushAnimator alloc] init];
    } else {
        return [[PopAnimator alloc] init];
    }
}

那么你显然会实现这些动画师：

@interface PushAnimator : NSObject <UIViewControllerAnimatedTransitioning>

@end

@implementation PushAnimator

- (NSTimeInterval)transitionDuration:(id <UIViewControllerContextTransitioning>)transitionContext
{
    return 0.5;
}

- (void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext
{
    UIViewController* toViewController   = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
    UIViewController* fromViewController = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];

    [[transitionContext containerView] addSubview:toViewController.view];
    toViewController.view.frame = fromViewController.view.frame;
    toViewController.view.transform = CGAffineTransformMakeScale(0.5,0.5);
    toViewController.view.alpha = 0.0;

    [UIView animateWithDuration:[self transitionDuration:transitionContext] delay:0.0 options:0 animations:^{
        toViewController.view.transform = CGAffineTransformIdentity;
        toViewController.view.alpha = 1.0;
    } completion:^(BOOL finished) {
        [fromViewController.view removeFromSuperview];
        [transitionContext completeTransition:![transitionContext transitionWasCancelled]];
    }];
}

@end

和

@interface PopAnimator : NSObject <UIViewControllerAnimatedTransitioning>

@end

@implementation PopAnimator

- (NSTimeInterval)transitionDuration:(id <UIViewControllerContextTransitioning>)transitionContext
{
    return 0.5;
}

- (void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext
{
    UIViewController* toViewController   = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
    UIViewController* fromViewController = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];

    [[transitionContext containerView] insertSubview:toViewController.view belowSubview:fromViewController.view];
    toViewController.view.frame = fromViewController.view.frame;

    [UIView animateWithDuration:[self transitionDuration:transitionContext] delay:0.0 options:0 animations:^{
        fromViewController.view.transform = CGAffineTransformMakeScale(0.5,0.5);
        fromViewController.view.alpha = 0.0;
    } completion:^(BOOL finished) {
        [fromViewController.view removeFromSuperview];
        [transitionContext completeTransition:![transitionContext transitionWasCancelled]];
    }];
}

@end