iPhone UINavigation Issue - nested push animation can result in corrupted navigation bar

Question

I keep getting the following errors:

2011-04-02 14:55:23.350 AppName[42430:207] nested push animation can result in corrupted navigation bar
2011-04-02 14:55         


        

Answer 1

My problem had to do with the keyboard being active.

This was caused for me by pushing a ViewController from a textField's delegate method:

-(void)textFieldDidBeginEditing:(UITextField *)textField{

        FilterLocationViewController *destViewController = (FilterLocationViewController *)[self.storyboard instantiateViewControllerWithIdentifier:@"FilterLocationViewController"];

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

}

By changing the code to this:

-(void)textFieldDidBeginEditing:(UITextField *)textField{

        [_textFieldLocation resignFirstResponder]; //adding this line

        FilterLocationViewController *destViewController = (FilterLocationViewController *)[self.storyboard instantiateViewControllerWithIdentifier:@"FilterLocationViewController"];

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

}

(adding the line [textField resignFirstResponder];) the problem went away.

Basically the lesson is that you shouldn't modify the navigationController stack if the keyboard is out.