ios - 如何切换到现有的非导航 Controller View 可编程？

Question

我正在尝试从一个 View (一个完全正常的 View )切换到另一个可编程的 View (也是正常的)。这是我现有的代码:

- (IBAction)login:(id)sender {


if([_username.text isEqualToString:name] && [_password.text isEqualToString:pw])    {


    DashboardViewController *destinationController = [[DashboardViewController alloc] init];
    [self.navigationController pushViewController:destinationController animated:YES];

}else   {
        UIAlertView *message = [[UIAlertView alloc] initWithTitle:@"Wrong Username or Password!"
                                                          message:@"Sorry."
                                                         delegate:nil
                                                cancelButtonTitle:@"Okay"
                                                otherButtonTitles:nil, nil];
        [message show];
        _password.text = nil;
    }
}

所以，我想转到我的 DashboardViewController。如果我尝试此代码，则会显示一个黑色的空 View 。有什么问题吗？

Answer 1

我最近遇到了同样的问题!这是我使用的解决方案:

  UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle: nil];
DashboardViewController *viewController = [storyboard instantiateViewControllerWithIdentifier:@"id"];
[self.navigationController pushViewController:viewController animated:YES];

MainStoryboard 应该是 Storyboard的名称，id 应该是您可以在 Storyboard中设置的 View Controller ID。