iPhone UINavigation问题 - 嵌套推送动画可能导致导航栏损坏 [英] iPhone UINavigation Issue - nested push animation can result in corrupted navigation bar
问题描述
我一直收到以下错误:
2011-04-02 14:55:23.350 AppName[42430:207] nested push animation can result in corrupted navigation bar
2011-04-02 14:55:23.352 AppName[42430:207] nested push animation can result in corrupted navigation bar
2011-04-02 14:55:23.729 AppName[42430:207] Finishing up a navigation transition in an unexpected state. Navigation Bar subview tree might get corrupted.
2011-04-02 14:55:23.729 AppName[42430:207] Finishing up a navigation transition in an unexpected state. Navigation Bar subview tree might get corrupted.
这是我正在做的事情。从视图控制器,我按下某个按钮时调用以下内容:
Here is what I am doing. From a view controller, I call the following when a certain button is pushed:
EventsViewController *viewController = [[EventsViewController alloc] init];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:viewController];
navController.navigationBar.tintColor = [UIColor blackColor];
[self presentModalViewController:navController animated:YES];
[viewController release];
[navController release];
然后,如果在EventsController中按下某个按钮,我会调用:
Then, if a certain button is pushed in EventsController, I call:
SingleEventViewController *viewController = [[SingleEventViewController alloc] initWithEvent:[currentEvents objectAtIndex:indexPath.row]];
[self.navigationController pushViewController:viewController animated:YES];
[viewController release];
然后,如果在SingleEventViewController中按下某个按钮,我会调用:
Then, if a certain button is pushed in SingleEventViewController, I call:
EventMapView* viewController = [[EventMapView alloc] initWithCoordinates];
[[self navigationController] pushViewController:viewController animated:YES];
[viewController release];
所以是的,显然有嵌套的推动动画,但这不是正确的方法关于它?我检查了Apple的DrillDownSave代码,看起来他们是这样做的。我使用init方法而不是viewDidLoad方法是否重要?
So yea, it's obvious that there's nested push animations, but isn't this the right way to go about it? I checked out Apple's DrillDownSave code and this appears to be how they're doing it. Does it matter that I use init methods instead of viewDidLoad methods?
推荐答案
我已经弄明白了。显然,如果从UITableViewDelegate的-didSelectRowAtIndexPath方法之外调用-pushViewController,它就不起作用。将呼叫转移到该功能是有效的。很奇怪。
I've figured it out. Apparently if you call -pushViewController from outside of the -didSelectRowAtIndexPath method of a UITableViewDelegate, it doesn't work. Moving the call into that function worked. Weird.
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