ios - 模态窗口没有被关闭

Question

我有两个以编程方式创建的按钮，您可以在我的 viewDidLoad 方法中看到。在模态窗口上，我有一个通过委托(delegate)调用 cancelSearch 方法的按钮。当我在我的 cancelSearch 方法上放置一个断点时，它会被命中，所以我知道我的委托(delegate)设置正确，但即使它调用了这一行 [self dismissViewControllerAnimated:YES completion:nil];它实际上并没有关闭模态窗口。

下面的代码全部来自我的主 Controller View 。

- (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];
}

Answer 1

您将使用类似于以下内容的方式关闭模态视图:

[self dismissModalViewControllerAnimated:YES];

这将关闭使用类似于以下内容加载的模态视图:

[self presentModalViewController:search animated:YES];

但是查看您的代码片段，似乎搜索 View Controller 正在使用以下行推送到导航堆栈:

[self.navigationController pushViewController:search animated:YES];

所以我可能需要从导航堆栈中弹出 View ，而不是试图将其作为模态视图关闭:

[self.navigationController popViewControllerAnimated:YES];