Removing ViewController in Navigation Stack

Question

In navigation stack , i am having 6 view controllers like A->B->C->D->E->F

At the view controller F, I want to go back to the view controller B, how can I do this? I want to remove the view controllers one by one. Thanks in Advance!

[look at this answer](http://stackoverflow.com/questions/3027559/can-i-pop-to-specific-viewcontroller) — MD., Nov 08 '16 at 09:52

score 3 · Answer 1 · edited Aug 26 '17 at 03:53

3

Use this:

for (UIViewController *controller in self.navigationController.viewControllers)
{
    if ([controller isKindOfClass:[B class]])
    {
        [self.navigationController popToViewController:controller animated:YES];
        break;
    }
}

edited Aug 26 '17 at 03:53

Pang

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answered Nov 08 '16 at 10:01

balkaran singh

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MD. · Answer 2 · 2016-11-08T10:12:58.300

1

If you want to pop directly to B Class ViewController then try following.

for (UIViewController *VC in [self.navigationController viewControllers])
{
    // here B is ViewCotroller Class Name
    if ([VC isKindOfClass:[B class]])
    {
        [self.navigationController popToViewController:VC animated:TRUE];
        break;
    }
}

[self.navigationController viewControllers] returns the array of ViewControllers of current navigation stack. I used For (each) loop to find out our view controller (which is B ViewController) from array. If it is match than We will perform the Pop operation to that ViewController.

edited Nov 08 '16 at 10:12

answered Nov 08 '16 at 10:01

MD.

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Right answer mahesh. – balkaran singh Nov 08 '16 at 10:04
@balkaransingh yes i am and you too. but lets see what Agal Sivamanoj want. – MD. Nov 08 '16 at 10:13
@thanks Mahesh and balkaransingh , after popped i want to clear all the data.example , after poping i am having one image on that view controller i want to clear that after popped , – Agal Sivamanoj Nov 08 '16 at 10:21
in which ViewController you want to clear image? i mean in F ViewController or B ViewController? @AgalSivamanoj – MD. Nov 08 '16 at 10:27
@Mahesh, I want to clear the image after moving from f to b viewcontroller .i want to clear the image in b view controller – Agal Sivamanoj Nov 08 '16 at 10:36
To do so you need to check condition in `ViewDidAppear` method of B that we are coming from F. Take boolean as Property in B and make it true when we push to C. in `ViewDidAppear` check that if bool is true than clear image and change bool to false. – MD. Nov 08 '16 at 10:43
You need to ask this in question so i can write solution in answer. @AgalSivamanoj – MD. Nov 08 '16 at 10:44

score 0 · Answer 3 · answered Nov 08 '16 at 09:53

0

You can use responder chain to reach to your targetVC and pop the ones above it.

answered Nov 08 '16 at 09:53

Kirandeep Kaur

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If you want to clear data in that view controller, you need to have your own function which resets your VC manually. – Kirandeep Kaur Nov 08 '16 at 10:28

score 0 · Answer 4 · answered Nov 08 '16 at 10:11

Thanks for the comments Rin and Kirandeep Kumar , i have tried like this ,it is working now

[self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex:1] animated:YES];

But i want to remove all the data in that view controller i.e objectAtindex:1 Please share how to do this Thanks

score 0 · Answer 5 · answered Nov 08 '16 at 17:56

Another answer is , for removing the viewcontroller we able to use notification also

[[NSNotificationCenter defaultCenter]postNotificationName:@"new" object:nil];

i have posted the notification in fVC and in BVC i registered and observed the notification and that method i removes the viewcontroller and clear that data

Rin · Answer 6 · 2016-11-08T10:02:59.163

-2

Try it:

[self.navigationController popToViewController:vcB animated:Yes];

edited Nov 08 '16 at 10:02

answered Nov 08 '16 at 09:53

Rin

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Removing ViewController in Navigation Stack

6 Answers6