CODEWITHSUNDEEP
iosobjective-cstoryboard
jerfin
jerfin

Reputation: 893

How to get the name of the view controller?

I am using the following code to get the name of the view controller so far navigated, 

NSMutableArray *navigationArray = [[NSMutableArray alloc] initWithArray: self.navigationController.viewControllers];
NSLog(@"%@",navigationArray);

but i am using this method in storyboard this is not working can any one help to fix this

Upvotes: 0

Views: 2768

Answers (3)

Avinash Jadhav
Avinash Jadhav

Reputation: 501

This may help you to resolve issue
On Storyboard select each view controller and go to Class inspector. Then set storyboard identifier unique to each view controller.
You can access instance of any view controller.

id controller =  [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"ControllerIdentifier"];


Another way

  NSMutableArray *navigationArray = [[NSMutableArray alloc] initWithArray: self.navigationController.viewControllers];
  id  controller1 = [navigationArray objectAtIndex: 0];
  id  controller1 = [navigationArray objectAtIndex: 1];
  ....

Upvotes: 0

NSNoob
NSNoob

Reputation: 5628

You will have to iterate on navigation stack and use Anbu's solution to retrieve their class name:

NSMutableArray* viewControllersNames = [[NSMutableArray alloc] init];
for(UIViewController *vc in self.navigationController.viewControllers)
{
    NSString *vcName = NSStringFromClass([vc class]);
    [viewControllersNames addObject:vcName];

}

In the property self.navigationController.viewControllers, all your viewcontrollers which haven't been popped yet are stored. Here we are iterating over them and adding their class names in an array. Your first ViewController will be at 0 index of array and your last one (The View controller which is currently presenting) will be at count-1 index.

This solution will work only if you are presenting your viewControllers via navigation controller. If you are using modal presentation, it won't work. As your post gives the impression that you're using Navigation Controller, and you say that you are doing that, so solution is also for Nav controller approach.

Upvotes: 2

Anbu.Karthik
Anbu.Karthik

Reputation: 82756

use NSStringFromClass(). It returns the name of a class as a string.

if you want to fetch some view controller name , do like

   NSString *viewName = NSStringFromClass([yourviewControllerName class]);

if you want to fetch current view controller , do like

NSString *viewName = NSStringFromClass([self class]);

fetch previous Viewcontrollers

You can use the UINavigationController's viewControllers property:

@property(nonatomic, copy) NSArray *viewControllers

NSArray * allViewController = self.navigationController.viewControllers;

another choice

get count of viewcontrollers available in navigation use like

NSInteger totalCount = self.navigationController.viewControllers.count;

Updated

UIViewController *allViewController = self.navigationController.viewControllers[totalCount - 2];
Class previousVCClass = [allViewController class];
NSString *className = NSStringFromClass(previousVCClass);

Upvotes: 3

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