iOS - Push viewController from code and storyboard

问题:

I have this code

 PlaceViewController *newView = [self.storyboard instantiateViewControllerWithIdentifier:@"PlaceView"];
 [self presentViewController:newView animated:YES completion:nil];

And I can change view, but I would push this view for when I return at this page, the state persists.

I try to put this code:

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

but doesn't do anything.

Thanks

回答1:

PlaceViewController *newView = [self.storyboard instantiateViewControllerWithIdentifier:@"storyBoardIdentifier"];
[self.navigationController pushViewController:newView animated:YES];

Check 2 things,

1. your storyboard identifier is correct.

2. The root view have navigation Controller.

回答2:

For Storyboards, you should use performSegueWithIdentifier like so:

 [self performSegueWithIdentifier:@"identifier goes here" sender:self];

回答3:

Use:

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"STORYBOARD_NAME" bundle:nil];
PlaceViewController *newView = [storyboard instantiateViewControllerWithIdentifier:@"PlaceView"];
[self presentViewController:newView animated:YES completion:nil];

Or:

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"STORYBOARD_NAME" bundle:nil];
PlaceViewController *newView = [storyboard instantiateViewControllerWithIdentifier:@"PlaceView"];
[self.navigationController pushViewController:newView animated:YES];

回答4:

Swift 3.x

let viewController = storyboard?.instantiateViewController(withIdentifier: "storyboardIdentifier") as! UIViewController
navigationController?.pushViewController(viewController, animated: true)

回答5:

By default, Xcode creates a standard view controller. we first change the view controller to navigation controller. Select the Simply select “Editor” in the menu and select “Embed in”, followed by “Navigation Controller” Step 1. Select Main story board Step 2.Click on "Editor" on top of your Xcode application. Step 3. Click on "Embed In"

Xcode automatically embeds the View Controller with Navigation Controller.