iOS: present view controller programmatically
Solution 1
If you're using a storyboard, you probably shouldn't be using alloc
and init
to create a new view controller. Instead, look at your storyboard and find the segue that you want to perform; it should have a unique identifier (and if not, you can set one in the right sidebar).
Once you've found the identifier for that segue, send your current view controller a -performSegueWithIdentifier:sender
message:
[self performSegueWithIdentifier:@"mySegueIdentifier" sender:self];
This will cause the storyboard to instantiate an AddTaskViewController and present it in the way that you've defined for that segue.
If, on the other hand, you're not using a storyboard at all, then you need to give your AddTaskViewController some kind of user interface. The most common way of doing so is to initialize the controller with a nib: instead of just calling init
, you'll call -initWithNibName:bundle:
and provide the name of a .xib file that contains your add-task UI:
AddTaskViewController *add = [[AddTaskViewController alloc]
initWithNibName:@"AddTaskView" bundle:nil];
[self presentViewController:add animated:YES completion:nil];
(There are other (less common) ways of getting a view associated with your new view controller, but this will probably present you the least trouble to get working.)
Solution 2
If you are using Storyboard and your "add" viewController is in storyboard then set an identifier for your "add" viewcontroller in settings so you can do something like this:
UIStoryboard* storyboard = [UIStoryboard storyboardWithName:@"NameOfYourStoryBoard"
bundle:nil];
AddTaskViewController *add =
[storyboard instantiateViewControllerWithIdentifier:@"viewControllerIdentifier"];
[self presentViewController:add
animated:YES
completion:nil];
if you do not have your "add" viewController in storyboard or a nib file and want to create the whole thing programmaticaly then appDocs says:
If you cannot define your views in a storyboard or a nib file, override the loadView method to manually instantiate a view hierarchy and assign it to the view property.
Solution 3
You need to set storyboard Id from storyboard identity inspector
AddTaskViewController *add=[self.storyboard instantiateViewControllerWithIdentifier:@"storyboard_id"];
[self presentViewController:add animated:YES completion:nil];
Solution 4
your code :
AddTaskViewController *add = [[AddTaskViewController alloc] init];
[self presentViewController:add animated:YES completion:nil];
this code can goes to the other controller , but you get a new viewController , not the controller of your storyboard, you can do like this :
AddTaskViewController *add = [self.storyboard instantiateViewControllerWithIdentifier:@"YourStoryboardID"];
[self presentViewController:add animated:YES completion:nil];
Solution 5
The best way is
AddTaskViewController * add = [self.storyboard instantiateViewControllerWithIdentifier:@"addID"];
[self presentViewController:add animated:YES completion:nil];
Salieh
Updated on June 26, 2020Comments
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Salieh almost 4 years
I'm using the
presentViewController:animated:completion:
method to go to another view controller.This is my code:
AddTaskViewController *add = [[AddTaskViewController alloc] init]; [self presentViewController:add animated:YES completion:nil];
This code goes to the other
UIViewController
but the other controller is empty. I've always been using storyboards but now I need this to be done in code. -
Salieh about 11 yearsIf it is combined with a button its work. but is not combined.
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Frederic Adda about 8 yearsThis just loads a blank UIViewController
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Esqarrouth about 8 yearsof course it does. You have to replace it with your own viewcontroller, or add some sort of color or objects inside the view of uiviewcontroller
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Wai Ha Lee about 8 yearsTo reviewers: if the answer is bad but is an answer (like this is), don't recommend deletion: downvote! See You're doing it wrong: A plea for sanity in the Low Quality Posts queue. This is an answer. You may not agree with it, but it is an attempt to answer the question.
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C. Tewalt over 7 yearsSo how do you "un-present" the new view controller in the non-storyboard scenario? I'm googling around trying to find something similar to unwindForSegue:towardsViewController:
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C. Tewalt over 7 yearsActually, I just found "dismissViewController" which I think is the right answer.
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Madhurya Gandi over 5 yearsThanks. Worked for me.