How can I dismiss view?

Question

If I add view like this: [myView addSubview:viewController.view]; how can I dismiss it and get the old view. For example on button click

-(IBAction)dismiss{
//some code
}

thanks

Answer 1

[viewController.view removeFromSuperview];

Answer 2

if ([viewController.view superView])

{

      [viewController.view removeFromSuperview];

}