[英]Modal window not being dismissed
我有兩個以編程方式創建的按鈕,您可以在我的viewDidLoad方法中看到。 在模態窗口中,我有一個通過委托調用cancelSearch方法的按鈕。 當我在cancelSearch方法上放置一個斷點時,它被命中,所以我知道我的委托設置正確,但即使它調用了這一行[self dismissViewControllerAnimated:YES completion:nil]; 它實際上並沒有關閉模態窗口。
以下代碼全部來自我的主控制器視圖。
- (void)viewDidLoad
{
[super viewDidLoad];
UIBarButtonItem *actionButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(showActionMenu:)];
actionButton.style = UIBarButtonItemStyleBordered;
UIBarButtonItem *searchButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:self action:@selector(showSearchMenu:)];
searchButtonItem.style = UIBarButtonItemStyleBordered;
UIToolbar* toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 103.0f, 44.01f)];
NSArray* buttons = [NSArray arrayWithObjects:actionButton, searchButtonItem, nil];
[toolbar setItems:buttons animated:NO];
self.navigationItem.title = @"Census Management";
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:toolbar];
[[RKClient sharedClient] get:@"censusmanagement" delegate:self];
}
- (IBAction)showActionMenu:(id)sender
{
[self performSegueWithIdentifier: @"CMActionSegue" sender: self];
}
- (IBAction)showSearchMenu:(id)sender
{
ehrxCMSearchView *search = [[self storyboard] instantiateViewControllerWithIdentifier:@"cmSearch"];
search.selectedOptions = self.selectedOptions;
search.delegate = self;
[self.navigationController pushViewController:search animated:YES];
}
- (void)cancelSearch:(ehrxCMSearchView *)controller
{
[self dismissViewControllerAnimated:YES completion:nil];
}
您可以使用類似於以下內容的方式關閉模態視圖:
[self dismissModalViewControllerAnimated:YES];
這將取消使用類似於以下內容加載的模態視圖:
[self presentModalViewController:search animated:YES];
但是,查看您的代碼片段,看起來搜索視圖控制器正在使用以下行推送到導航堆棧:
[self.navigationController pushViewController:search animated:YES];
所以我可能需要從導航堆棧中彈出視圖,而不是試圖將其視為模態視圖:
[self.navigationController popViewControllerAnimated:YES];
如果您的視圖控制器是模態呈現的,您應該使用:
[self.presentingViewController dismissModalViewControllerAnimated:YES];
presentsViewController屬性僅在iOS 5中可用。 因此,如果您的目標是舊版本的iOS,則必須使用self.parentViewController(對每個iOS版本使用適當的版本,您必須處理此問題)。
如果在父/呈現視圖控制器中進行此控制,則只需調用:
[self dismissModalViewControllerAnimated:YES];
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