Ios 7 自定义 UINavigationController 动画在目标控制器中出现 mapView 失败

Question

我在UViewController内部玩弄新UIViewControllerContextTransitioning UINavigationViewController

我所拥有的和我想要实现的目标很简单，但我在某个地方失败了

我在UIScrollView内有一个MKMapView（300px * 60px）。通过单击该地图（无论它在可见滚动中的哪个位置），我想转到包含全尺寸MKMapView的下一个视图。我的目标是让用户感觉他们被吸进了地图（有点）=）

到目前为止，我已经添加了： <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;
}

对于我拥有的prepareForSegue方法：

   [super prepareForSegue:sender sender:sender];
    MapViewController *mapViewController = segue.destinationViewController;
    mapViewController.transitioningDelegate = self;
    mapViewController.modalPresentationStyle = UIModalPresentationCustom;

最后，我有了"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{
   ...
}
}

过渡动画在目的地视图控制器为空的情况下工作得很好。但是动画中的地图真的很奇怪，根本不像我想要的那样。

Any1 有任何指示，说明我想念或需要考虑什么？

Answer 1

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

呈现的控制器有一个UIViewControllerTransitioningDelegate，推送控制器有一个UINavigationControllerDelegate。 协议中的委托方法返回动画器。