simple question of pushViewController

messagecontroller is nothing but object of initialize nib file.

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

this statement executes in normal condition

this statement also works on state maintainace testing , this line executes p开发者_StackOverflowroperly but not open new view ,why?

Calling this method call does not push a new view? If this is the question you should ask yourself some questions:

1. Is self having an UINavigationController? Make sure self is a view controller inside a navigation controller.

2. Is messageController initialized correctly? Like this for example (if messageController is an ivar):

   messageController = [[MyViewControllerClass alloc] initWithNibName:@"MyViewControllerClassNibName" bundle:nil];