CODEWITHSUNDEEP
iphoneiosobjective-cuinavigationcontrollersubview
Adolf Dsilva
Adolf Dsilva

Reputation: 14420

Going back to the previous views

I am a newbie in iOS... In my project i am navigating to other views using addsubview...

I have many views say 1 to 7..

What i want is when i am on the 7th view or 6th view or 5th view i want to go back to the 2nd view on a button click..

I am using UINavigationController example, but as far as i understood we can only go to the previous view...

I have used another example in which it takes me to the root view.. following is the code

   NSArray *viewsToRemove = [self.view subviews];
    for (UIView *v in viewsToRemove) {
        [v removeFromSuperview];

So should i use a UINavigationController or do i need to use the above method with modifications??

Any ideas how can i achieve this..

Please Help!!!!

Thanks.

I am not using navigation controller currently but instead using addsubview method... Is this a bad practice, do i specifically need to navigation control.. Thanks!!!

Upvotes: 0

Views: 209

Answers (5)

Ponting
Ponting

Reputation: 2246

Sweet and Simple Solution : Just Write below code where your function is called:

- (IBAction)goToSecondViewController
{
   NSArray *array = [self.navigationController viewControllers];
   [self.navigationController popToViewController:[array objectAtIndex:i] animated:YES];
   // where i indicates viewController number,In your case write 2 instead of i.
}

Hope this might help you.

Upvotes: 0

hitesh
hitesh

Reputation: 374

for (UIViewController *viewcontroller in self.navigationController.viewControllers)
    {
        if ([viewcontroller isKindOfClass:[self.navigationController class]])
        {
            UIStoryboard *story_profile=[UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];

            FindFriends_ViewController *objc_prof = [story_profile instantiateViewControllerWithIdentifier:@"FindFriends_ViewController"];

            [self.navigationController popToViewController:objc_prof animated:YES];

        }
    }

Upvotes: 0

sagarcool89
sagarcool89

Reputation: 1376

Please try following,

//This for loop iterates through all the view controllers in navigation stack.
for (UIViewController* viewController in self.navigationController.viewControllers) {

    //This if condition checks whether the viewController's class is MyViewController
    // if true that means its the MyViewController (which has been pushed at some point)
    if ([viewController isKindOfClass:[MyViewController class]] ) {

        // Here viewController is a reference of UIViewController base class of MyViewController
        // but viewController holds MyViewController  object so we can type cast it here
        MyViewController *ObjmyViewController = (MyViewController*)viewController;
        [self.navigationController popToViewController:ObjmyViewController animated:YES];
    }
}

Thanks,

Upvotes: 0

Rakesh
Rakesh

Reputation: 3399

You can use the following method of a navigation controller to move to a particular view:

popToViewController:animated:

See here for docs.

So if you have a UINavigationController *navCon and want to move to the second view use the below code:

UIViewController *vc = [navCon.viewControllers objectAtIndex:1];
[navCon popToViewController:vc animated:YES];

Upvotes: 3

manujmv
manujmv

Reputation: 6445

If you want to go to the 2nd view from 5th view use the below code:

NSMutableArray *allViewControllers = [NSMutableArray arrayWithArray:self.navigationController.viewControllers];
[allViewControllers removeObject:self];//removing 5th
[allViewControllers removeLastObject];//removing 4th
[allViewControllers removeLastObject];//removing 3rd
self.navigationController.viewControllers = allViewControllers;

Now just pop the navigation controller

Upvotes: 1

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