iphone - dismissModalViewControllerAnimated使我的应用程序崩溃:(

Question

我正在创建一个iPad应用程序，并且有两个类:NWRootViewController : UITableViewController和UINewFeedViewController : UIViewController。在NWRootViewController中，我有一个UIBarButtonItem，当点击它时，会弹出一个名为NWNewFeedViewController的模式 View Controller :

// THIS CODE IS IN NWROOTVIEWCONTROLLER.M
// New Feed
-(IBAction)showNewFeedViewAction:(id)sender {
    [newFeedViewController setModalPresentationStyle:UIModalPresentationFormSheet];
    [self presentModalViewController:newFeedViewController animated:YES];
}

这很好。但是，在NWNewFeedViewController的 View 中，我还有另一个UIBarButtonItem在点击时执行此操作:

// THIS CODE IS IN NWNEWFEEDCONTROLLER.M
// Buttons
-(IBAction)cancelAction:(id)sender {
    [self dismissModalViewControllerAnimated:YES];
}

当我点击此按钮时，应用程序崩溃并显示:

2010-04-10 12:39:46.703 News[580:207] *** -[NWDetailViewController cancelAction:]: unrecognized selector sent to instance 0x4741110
2010-04-10 12:39:46.705 News[580:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NWDetailViewController cancelAction:]: unrecognized selector sent to instance 0x4741110'
2010-04-10 12:39:46.705 News[580:207] Stack: (
    40878667,
    2458187017,
    41150267,
    40613142,
    40609810,
    2776006,
    4876265,
    2776006,
    3246293,
    3255055,
    3250242,
    2899304,
    2793965,
    2825287,
    49238396,
    40419388,
    40415304,
    49232029,
    49232226,
    2817505
)

谁能帮我？谢谢

Answer 1

您的“取消”按钮具有您的详细信息 Controller 的目标；您的目标是定位新的Feed Controller 。因此，请检查您如何配置取消按钮。