ios - 关闭 UITableViewController 时出错

Question

我一直在创建一个项目，但我收到来自调试器的警告:

Warning: Attempt to dismiss from view controller while a presentation or dismiss is in progress!

代码如下:

if (self.editHw)
{
    if (self.homeworkEdit)
    {
        [self.homeworkEdit setValue:self.homeworkNameTF.text forKey:@"name"];
        [self.homeworkEdit setValue:self.subject forKey:@"subject"];
        [self.homeworkEdit setValue:self.dateDueLabel.text forKey:@"due_date"];
        [self.homeworkEdit setValue:self.reminderDateLabel.text forKey:@"reminder_date"];
        [self.homeworkEdit setValue:self.commentsTF.text forKey:@"comments"];


        NSError *error = nil;

        [context save:&error];
        [self dismissViewControllerAnimated:YES completion:nil];
    }
}

谁能告诉我这个错误是什么意思以及为什么会出现这个错误？如果您需要更多信息，请询问。

Answer 1

您显示的代码不足以了解错误是什么。显示该错误是因为您尝试同时为 2 个不同的 View Controller 设置动画(一个被忽略，一个被显示)。为了避免这个问题，您可以:

1. Wait until one animation is complete before starting the next

或者

2. Run one of the changes (probably the dismissal) without animation