Navigate Back to previous view controller

问题:

I have a UIView->UICollectionView->UICollectionViewCell. I am trying to navigate back programatically but none of these works. The code did called. I am using StoryBoard.

- (void) goBack:(NSNotification *) notification {
      // [self.navigationController popViewControllerAnimated:YES];
     //  [self dismissViewControllerAnimated:YES completion:nil];
      [self.navigationController popToRootViewControllerAnimated:YES];
}

回答1:

You need to use:

[self.navigationController popToRootViewControllerAnimated:YES];

This will bring you back to the root view controller.

If you want to navigate back to previous view controller, you should implement:

[self.navigationController popViewControllerAnimated:YES];

回答2:

By using below line we can go to parent view controller

[self.navigationController popViewControllerAnimated:YES]; 

By using below line we can move to main/root view controller

[self.navigationController popToRootViewControllerAnimated:YES]; 

By using below line we can move to any view controller

[self.navigationController popToViewController:viewControllerObject animated:YES]; 

回答3:

How about...

 [self.navigationController dismissViewControllerAnimated:YES completion:NULL];

Assuming that you are currently in a navigation-based controller and you wanted to go back to the previous controller before you got into a navigation-based controller.

回答4:

Swift solutions for easy copy pasting:

navigationController?.popViewControllerAnimated(true)

回答5:

Try it....

#import "bookdescriViewController.h" // import here your class name 

- (IBAction)backButton:(id)sender 
{
  bookdescriViewController *previosVC = [[bookdescriViewController alloc]init];
  [self.navigationController popViewControllerAnimated:YES]; // go to previous view controller
  [self.navigationController popToRootViewControllerAnimated:YES]; // go to root view controller
  [self.navigationController popToViewController:previosVC animated:YES]; // go to any view controller
  [previosVC release];
}

回答6:

With swift3,

@IBAction func back(_ sender: UIButton) {
    self.dismiss(animated: true, completion: nil)     
}

回答7:

- (void) goBack:(NSNotification *) notification 
{ 
   if(!self.YOrView.isHidden)
      self.YOrView.hidden = YES;
}

回答8:

Go back to parent view controller and dealloc current view controller ex :

- (void)applicationDidEnterBackground:(NSNotification *)notification
{
    NSInteger numberOfViewControllers = self.navigationController.viewControllers.count;

    UIViewController *vc = [self.navigationController.viewControllers objectAtIndex:numberOfViewControllers - 2];

    [self.navigationController popToViewController:vc animated:NO];
}

or another view controller

回答9:

Swift 4.1:

navigationController.popViewController(animated: true)