自定义展开segue动画

Question

我有以下设置:

红色控制器有一个方法

- (IBAction)unwindToRed:(UISegue *)segue

和a

- (UIStoryboardSegue *)segueForUnwindingToViewController:(UIViewController *)toViewController fromViewController:(UIViewController *)fromViewController identifier:(NSString *)identifier

返回此事件的自定义segue.

在我的自定义segue中,我在执行代码中有以下内容:

- (void)perform
{
    // Just helpers to get the controllers from the segue
    UIViewController *destination = self.destinationViewController;
    UIViewController *source = self.sourceViewController;

    // Setting transitioning delegate for custom transitions
    destination.transitioningDelegate = self;
    source.transitioningDelegate = self;

    destination.modalTransitionStyle = UIModalPresentationCustom;
    source.modalPresentationStyle = UIModalPresentationCurrentContext;

    // When I am transitioning to a new one
    if(!self.reversed)
    {
        [source presentViewController:destination animated:YES completion:nil];
    }
    // Or reversing from a current one
    else
    {
        [source dismissViewControllerAnimated:YES completion:nil];
    }
}

正如您所看到的,我已经设置了一个转换委托,而后者又会调用它

- (void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext

在我应用自定义动画的动画控制器上.但是现在当我在黄色视图上点击Unwind to Red时,它只会"展开"到它的父级.(例如蓝色的).

当我将自定义segue从等式中移开时,它可以正常工作.它一路走到顶端.

现在我认为这与此有关

[source dismissViewControllerAnimated:YES];

因为那通常只是"一上去"我的问题是我认为,我应该在那里打电话,以便在需要时一直到红色？黄色是模态叠加.所以"pop too root"是行不通的.

Answer 1

您想使用导航控制器的 popToViewController：

 [source.navigationController popToViewController:destination animated:YES];

或者，使用animated:NO并将整个内容放入动画块中：例如：

UIViewAnimationOptions animation  = UIViewAnimationOptionTransitionFlipFromRight | UIViewAnimationOptionCurveEaseInOut | UIViewAnimationOptionAllowAnimatedContent;

UIViewController *source = (UIViewController *) self.sourceViewController;
UIViewController *dest = (UIViewController *) self.destinationViewController;


[UIView transitionWithView:src.navigationController.view duration:0.4
                   options: animation
                animations:^{
                    [source.navigationController popToViewController:dest animated:NO];
                }
                completion:^(BOOL finished) {
                }];