Question

I Have an application in which i had the array of view controllers
now i want to pop to a particular vie controller .also i need to set the value of a string object inside that viewcontroller to nil.I am doing like this ,but how to set the string value inside that view controller is my bottle neck?can anybody help me?`

NSArray *array1 = [self.navigationController viewControllers];
NSLog(@"%@beforelogout",[self.navigationController viewControllers]);
[self.navigationController popToViewController:[array1 objectAtIndex:1] animated:YES];

`
i need to set the string inside [array1 objectAtIndex:0].?

Answer 1

First, your [array1 objectAtIndex:0] is simply your navigationcontrollers rootview. You could do like this:

RootViewController *rootView = (RootViewController*)[self.navigationController.viewControllers objectAtIndex:0];
rootView.yourProperty = nil;
[self.navigationController popToRootViewControllerAnimated:YES];

Change the “RootViewController” to the self made class of your rootview.