添加導航控制器在類不在appdelegate

Question

如何添加導航控制器在viewDidLoad任何類的方法爲他們的下一個類，我沒有添加它在appdelegate開始。

Answer 1

YourViewController *report = [[YourViewController alloc] init]; // create Object of YourViewController 

UINavigationController *navigationController = [[UINavigationController alloc]initWithRootViewController:report]; // add YourViewController as root view controller of UINavigationController 

[self presentModalViewController:navigationController animated:YES];