相关疑难解决方法(0)

此视频显示了我遇到的问题. http://www.youtube.com/watch?v=C9od_2KZAbs

我正在尝试使用UIPanGestureRecognizer创建自定义推送交互式转换.我有一个交互式转换委托(使用UIPercentDrivenInteractiveTransition)和一个过渡动画师.

以下是平移手势控制转换的方式:

- (void) panGestureRecognized:(UIPanGestureRecognizer *) gestureRecogznier {

    CGPoint translation = [gestureRecogznier translationInView:gestureRecogznier.view];

    if (gestureRecogznier.state == UIGestureRecognizerStateBegan) {

        self.interactiveTransitionAnimator = [[UIPercentDrivenInteractiveTransition alloc] init];

        EVDetailViewController *detailViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"EVDetailViewController"];
        [self.navigationController pushViewController:detailViewController animated:YES];
    }
    else if (gestureRecogznier.state == UIGestureRecognizerStateChanged) {

        CGFloat d = (translation.x / CGRectGetWidth(self.view.bounds)) * -1;
        [self.interactiveTransitionAnimator updateInteractiveTransition:d];
    }
    else if (gestureRecogznier.state == UIGestureRecognizerStateEnded) {

        if ([gestureRecogznier velocityInView:self.view].x < 0) {
            [self.interactiveTransitionAnimator finishInteractiveTransition];
        } else {
            [self.interactiveTransitionAnimator cancelInteractiveTransition];
        }

        self.interactiveTransitionAnimator = nil;
    }
}

UINavigationControllerDelegate处理两个转换委托对象的自动售货,这是在调用pushViewController:时触发的.

过渡动画师有一个非常简单的动画:

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