ios – 推动视图控制器时“从左到右”的无缝动画？

Check out this article.除了过渡本身之外,它正是你想要的.简而言之：

1)创建一个对象来执行动画

@H_616_14@@interface Animator : NSObject <UIViewControllerAnimatedTransitioning> @end

2)成为导航控制器的委托,并在此导航控制器委托方法上回答该动画师的实例：

@H_616_14@// in your vc.m @interface ViewController () <UINavigationControllerDelegate> // add this // in view did load self.navigationController.delegate = self; // implement this to pass your animator as the thing to be in charge of the transition animation - (id<UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController animationControllerForOperation:(UINavigationControllerOperation)operation fromViewController:(UIViewController*)fromVC toViewController:(UIViewController*)toVC { if (operation == UINavigationControllerOperationPush) { return [[Animator alloc] init]; } return nil; }

3)在你的动画师中,回答持续时间：

@H_616_14@- (NSTimeInterval)transitionDuration:(id <UIViewControllerContextTransitioning>)transitionContext { return 0.25; }

4)所有这些都来自文章.剩下要做的唯一事情是实现从左到右的幻灯片. (我更改了文章的代码,从左到右滑动)：

@H_616_14@- (void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext { UIViewController* toViewController = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey]; UIViewController* fromViewController = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey]; CGRect fromVCFrame = fromViewController.view.frame; CGFloat width = toViewController.view.frame.size.width; [[transitionContext containerView] addSubview:toViewController.view]; toViewController.view.frame = CGRectOffset(fromVCFrame,-width,0); [UIView animateWithDuration:[self transitionDuration:transitionContext] animations:^{ fromViewController.view.frame = CGRectOffset(fromVCFrame,width,0); toViewController.view.frame = fromVCFrame; } completion:^(BOOL finished) { fromViewController.view.frame = fromVCFrame; [transitionContext completeTransition:![transitionContext transitionWasCancelled]]; }]; }

我在一个小项目中尝试了所有这些,它的工作非常顺利.