objective-c - UIViewControllerHierarchyInconsistency 清除关联

Question

我知道这个问题以前发布过，但我找到的答案与这种情况不符

运行2年前在Xcode 4.5.1中编写的应用程序后出现异常。

这是:

exception 'UIViewControllerHierarchyInconsistency', reason: 'A view can only be associated with at most one view controller at a time! <UIView: 0xaa9c4f0; frame = (0 0; 320 367); autoresize = W+H; layer = > is associated with <TabledReservationListController: 0xaa89e80>. Clear this association before associating this view with <UIViewController: 0x9e9e310>.'

然后在几个像这样的答案中

UIViewControllerHierarchyInconsistency when trying to present a modal view controller

建议删除 nib 文件中的 viewcontroller，就像在问题图片上看到的那样。

问题是在这种情况下，我没有 viewController，这是 TabledReservationListController 的 nib 文件:

这是应用程序崩溃的代码部分:

- (void)viewDidLoad {
    [super viewDidLoad];

    [navigation setDelegate: self];
    [self createReservationListController];

    [reservationListController viewWillAppear: NO];

     // in this line below
    [[navigation topViewController] setView: [reservationListController view]];

    [reservationListController viewDidAppear: NO];

    [[self view] addSubview: [navigation view]];
    CGRect r = [[self view] frame];
    r.origin.y = 0;
    [[navigation view] setFrame: r];

    [reservationListController setNavigationController: navigation];
}


- (void)createReservationListController {
    TabledReservationListController *res_ =
        [[TabledReservationListController alloc] initWithNibName: @"TabledReservationListView"
                                                          bundle: nil];
    [self setReservationListController: res_];
    [res_ release];

    [[[self navigation] topViewController] setTitle: @"Available Tables"];
}

问候，也许有人可以提供帮助。

Answer 1

您不应该调用 viewWillAppear 和 viewDidAppear。这些应该是框架调用您的方法。

与其尝试将 reservationListController 的 View 提供给不同的 Controller ，不如推送 reservationListController。