我正在尝试构建我的应用程序,在某种程度上我推一个UIViewController,然后我得到这个错误.我不知道为什么
‘UIViewControllerHierarchyInconsistency’,reason: ‘A view can only be
associated with at most one view controller at a time! View > is associated with . Clear this association before associating this view with
.’
PageViewController *viewController; viewController = [[PageViewController alloc] initWithManagedObjectContext:managedObjectContext]; dataSource = [[PagesDataSource alloc] initWithManagedObjectContext:managedObjectContext]; PVPage *selectedPage = [[dataSource pages] objectAtIndex:itemIndex]; [viewController setRepresentedPage:selectedPage]; PageFlipperAppDelegate *appDelegate = (PageFlipperAppDelegate *)[[UIApplication sharedApplication] delegate]; [(UINavigationController *)[[appDelegate window] rootViewController] setToolbarHidden:YES animated:YES]; [(UINavigationController *)[[appDelegate window] rootViewController] pushViewController:viewController animated:YES];
在我的pageViewController ……………….
- (id)initWithManagedObjectContext:(NSManagedObjectContext *)initManagedObjectContext
{
if ((self = [super initWithNibName:@"PageView" bundle:nil]))
{
[self setManagedObjectContext:initManagedObjectContext];
dataSource = [[PagesDataSource alloc] initWithManagedObjectContext:[self managedObjectContext]];
}
return self;
}
解决方法
当我想要一个设置滚动视图显示在一个popover时,我出现了同样的错误.
SettingsViewController *settingsViewController;
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Storyboard" bundle:nil];
settingsViewController = [storyboard instantiateViewControllerWithIdentifier:@"Settings"];
CGRect contentRect = CGRectMake(10,10,320,700);
// This entire object got deleted in the fixed version
UIViewController *popoverContent = [[UIViewController alloc] init];
popoverContent.view = settingsViewController.view;
popoverContent.contentSizeForViewInPopover = contentRect.size;
// Instead of popoverContent I just put the settingsViewController in directly.
UIPopoverController *popoverController = [[UIPopoverController alloc] initWithContentViewController:popoverContent];
[popoverController presentPopoverFromRect:[sender frame]
inView:(UIButton*)sender
permittedArrowDirections:UIPopoverArrowDirectionLeft
animated:YES];
行popoverContent.view = settingsViewController.view是导致崩溃的原因(没有它,我的popover当然是空的).从UIViewControllerHierarchyInconsistency错误的角度来看,我不应该重新分配它,然后将其添加到另一个视图控制器.
在你的情况下,我猜想pushViewController或代码中的其他地方发生了类似的事情.可以这样吗？
