ios - dismissViewControllerAnimated VS popViewControllerAnimated

Question

I want to know what is the different of them. when I can call

[self dismissViewControllerAnimated:YES completion:nil];

and when I should call

[self.navigationController popViewControllerAnimated:YES];

according document of apple: dismissViewControllerAnimated means "Dismisses the view controller that was presented by the receiver." But I always fail to dismiss view controller by this method.

Answer 1

your selected application is navigation based application means

[self.navigationController popViewControllerAnimated:YES];

your selected application is other than the navigation based application means

[self dismissViewControllerAnimated:YES completion:nil];