ios – 自定义Segue动画

概述我正在尝试使用自定义段来执行一种缩放动画. 当执行转换时,sourceViewController将变为黑色,然后进行缩放. 尝试将pushViewController设置为完成块,但转换不会完全执行. - (void)perform { UIViewController *sourceViewController = (UIViewController *) self.sourceVi 我正在尝试使用自定义段来执行一种缩放动画.
当执行转换时,sourceVIEwController将变为黑色,然后进行缩放.

尝试将pushVIEwController设置为完成块,但转换不会完全执行.

- (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){                     }];}

我做错了什么？

解决方法 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

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