ios - iOS 7自定义UINavigationController动画因目标 Controller 中的mapView失败

我正在UIViewControllerContextTransitioning内的UViewController之间使用新的UINavigationViewController
我拥有和想要实现的目标非常简单，但是我在某处失败了

我在MKMapView中有一个UIScrollView(300px * 60px)。从该地图上单击(无论它在可见的滚动条中的什么位置)，我都想选择到包含完整MKMapView的下一个视图。
我想要的感觉和动画是让用户感觉到他们被地图吸引了(=)

到目前为止，我补充说:<UIViewControllerTransitioningDelegate, UINavigationControllerDelegate>
和

-(id<UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController animationControllerForOperation:(UINavigationControllerOperation)operation fromViewController:(UIViewController *)fromVC toViewController:(UIViewController *)toVC{

if (operation == UINavigationControllerOperationPush) {
    NSLog(@"inside itself");
    FixRTransitionAnimator *animator = [FixRTransitionAnimator new];
    animator.presenting = YES;
    CGRect absoluteframe = [self.mainScrollView convertRect:self.mapView.frame toView:self.view];
    animator.mapFrame = absoluteframe;
    NSLog(@"the map frame is %@", NSStringFromCGRect(self.mapView.frame));
    return animator;
}
else
    NSLog(@"nope its outside");
return nil;
}

对于prepareForSegue方法，我有:

   [super prepareForSegue:sender sender:sender];

    MapViewController *mapViewController = segue.destinationViewController;
    mapViewController.transitioningDelegate = self;
    mapViewController.modalPresentationStyle = UIModalPresentationCustom;

最后我有`FixRTransitionAnimator.m``

-(NSTimeInterval)transitionDuration:(id<UIViewControllerContextTransitioning>)transitionContext{
NSLog(@"the time is timed");
return 0.5f;
}
 -(void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext{
NSLog(@"we are inside %@",NSStringFromCGRect(self.mapFrame));
UIViewController *fromVController = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
UIViewController *toVController = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];

CGRect endFrame = CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width,[UIScreen mainScreen].bounds.size.height);

if (self.presenting) {
    fromVController.view.userInteractionEnabled = NO;

    [[transitionContext containerView]addSubview:fromVController.view];
    [[transitionContext containerView]addSubview:toVController.view];

    toVController.view.frame = self.mapFrame;


     [UIView animateWithDuration:[self transitionDuration:transitionContext]      animations:^{
        fromVController.view.tintAdjustmentMode = UIViewTintAdjustmentModeDimmed;
        NSLog(@"inside the animation");
        toVController.view.frame = endFrame;
    } completion:^(BOOL finished) {
        [transitionContext completeTransition:YES];
    }];
}else{
   ...
}

}

当destinationViewController为空时，过渡动画效果很好。但是，在其中包含地图的情况下，动画效果确实很奇怪，而且根本不如我所愿。

Any1对我想念或需要思考的东西有任何指示吗？

最佳答案

我在另一个answer中写了一篇文章，但请确保您正在设置UINavigationControllerDelegate。

对于提供的控制器，有一个UIViewControllerTransitioningDelegate，对于推送的控制器，有一个UINavigationControllerDelegate。协议中的委托方法返回您的动画制作者。