PushViewController导致黑屏

Question

SettingsViewController *viewController = [[SettingsViewController alloc] init];
    [[self navigationController] pushViewController:viewController animated:YES];

在NavigationController中使用此代码时,显示的场景只是一个黑屏.在故事板中,它显示内容但不会显示在手机上.

Answer 1

试试这个:

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

将settingviewcontroller的标识符设置为"setting"

Answer 2

用这个：

SettingsViewController *viewController = [[SettingsViewController alloc] initWithNibName:@"SettingsViewController" bundle:[NSBundle mainBundle]]; 
[[self navigationController] pushViewController:viewController animated:YES];