我正在玩弄内部UIViewControllerContextTransitioning之间的新事物UViewControllerUINavigationViewController
我所拥有的和我想要实现的非常简单，但我在某处失败了
我MKMapView在UIScrollView. 通过单击该地图（无论它在可见滚动中的哪个位置），我想转到下一个包含完整大小的视图MKMapView。我想要的感觉和动画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：
<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我拥有的方法：
[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{
...
}
}
在destinationViewController 为空的情况下，过渡动画效果很好。但是动画里面的地图真的很奇怪，完全不是我想要的。
Any1 有什么我想念或需要考虑的指针吗？