两个ModalViewController

Question

我有一个navigationController,我从那里启动ModalViewController.在这个ModalViewController中,我将显示MailComposer,它本身是另一个ModalViewController.

现在,如果用户点击发送按钮,则应该关闭MailComposerView以及其他ModalViewController.为此,我在mailComposerController中调用了一个委托方法.

现在只有MailComposerView将被解雇,但没有其他ModalViewController,我得到以下错误消息

attempt to dismiss modal view controller whose view does not currently appear. self = <UINavigationController: 0x724d500> modalViewController = <UINavigationController: 0x72701f0>

你有什么想法我会做错吗？

第一个ModalView

- (void)addList {
NSLog(@"addList");

//AddListViewController *addListViewController = [[AddListViewController alloc] init];
AddListViewController *addListViewController = [[AddListViewController alloc] initWithStyle:UITableViewStyleGrouped];
addListViewController.delegate = self;

UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:addListViewController];
navigationController.navigationBar.barStyle = UIBarStyleBlack;
navigationController.navigationBar.translucent = YES;
[self presentModalViewController:navigationController animated:YES];

[navigationController release];
[addListViewController release];    }

在AddListViewController中调用MailView

MFMailComposeViewController *mailComposer = [[MFMailComposeViewController alloc] init];
    mailComposer.mailComposeDelegate = self;

    NSString *subject = [NSString stringWithFormat:@"Group invite for groupname: %@", @"mhm"];
    [mailComposer setSubject:subject];

    // Fill out the email body text
    NSString *emailBody = @"This is an group invite bla bla";
    [mailComposer setMessageBody:emailBody isHTML:NO];

    [self presentModalViewController:mailComposer animated:YES];
    [mailComposer release]; 

在mailComposerController方法中

[self.navigationController dismissModalViewControllerAnimated:YES];
[self.delegate finishAddList:checkmark andListName:listName.text];

在finsihAddList委托中

[self dismissModalViewControllerAnimated:YES];

Answer 1

我遇到了类似的问题.我有一堆模态呈现的视图控制器.当我试图从可见的一个开始解雇它们,并向下移动堆栈时,我会失败并出现同样的错误.解决方案是关闭堆栈底部的视图控制器.它会解雇它上面的一切.

在您的情况下,我的解决方案将相当于更改mailComposerController方法,以便它只包含一行(不会忽略最顶层的模态vie控制器).

[self.delegate finishAddList:checkmark andListName:listName.text];

我知道你已经解决了你的问题,但认为这对其他人有帮助.