iOS - After presentViewController nothing clickable except navigationBar

Question

I try to present viewController(BrandViewController) from view(MainCollectionViewCell.m) by using didselectItemAt method. So,

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
        UIViewController *currentTopVC = [self currentTopViewController];
        BrandViewController *brandVC = [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"BrandVC"];

        [currentTopVC presentViewController:brandVC animated:true completion:nil];
}

- (UIViewController *)currentTopViewController {
    UIViewController *topVC = [[[[UIApplication sharedApplication] delegate] window] rootViewController];
    while (topVC.presentedViewController) {
        topVC = topVC.presentedViewController;
    }
    return topVC;
}

This code shows BrandViewController correctly, but I cannot click any buttons or images from BrandViewControllerexcept my back button. Can you give me any ideas about this problem?

edited : I have two collectionViews. One is in MainViewController(MainCollectionView), and the other is inside of MainCollectionViewCell(didSelectItemAt method called from here).

edited2: presented View hierarchy has two UITransitionView

@jigneshVadadoriya Thank you, I tried but still not working.. — Changnam Hong, Apr 27 '17 at 11:34
why you have to find top view controller? cant you just use `self`? — Tj3n, Apr 27 '17 at 11:36
@Tj3n I try to call that method from `view` not from `controller`. So, I cannot catch `controller` by `self`(self is my collectionViewCell). — Changnam Hong, Apr 27 '17 at 11:40
got it, try print out the `currentTopVC ` you got, if its not your `MainCollectionView ` class, then its the problem, else try replace your `BrandViewController ` with a blank controller with a button, and see if you can interact — Tj3n, Apr 27 '17 at 11:47
I got `currentTopVC : ` from printing `currentTopVC`. Is it a problem? — Changnam Hong, Apr 27 '17 at 11:49
inspect view hierarchy : http://stackoverflow.com/a/24732640/3901620 — KKRocks, Apr 27 '17 at 11:50
@KKRocks I have two `UITransitionView` from presented view, but I can see just one `UITransitionView` from other views. — Changnam Hong, Apr 27 '17 at 11:56
i think it is check: http://stackoverflow.com/a/39967835/3901620 — KKRocks, Apr 27 '17 at 11:59
problem looking here... UIViewController *currentTopVC = [self currentTopViewController]; — Ajjjjjjjj, Apr 27 '17 at 12:02
@KKRocks If I set my `brandVC.view.userInterationEnabled = false` entire view not working. — Changnam Hong, Apr 27 '17 at 12:04
@ajjjjjjjj printing `currentTopVC` result is ``. Did I get wrong ViewController? — Changnam Hong, Apr 27 '17 at 12:07
yes, now try to push on navigation bar instead of presenting, it will work, Still if you want to present , then i will help you — Ajjjjjjjj, Apr 27 '17 at 12:09

score 1 · Accepted Answer · answered Apr 27 '17 at 12:10

1

Try code below:

UINavigationController *currentTopVC = (UINavigationController *)[self currentTopViewController];
BrandViewController *brandVC = [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"BrandVC"];
[currentTopVC pushViewController:brandVC animated:YES];

answered Apr 27 '17 at 12:10

kamil3

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You are my Life saver, Time saver!! – Changnam Hong Apr 27 '17 at 12:13
@ajjjjjjjj oh, thank you for you also. Can you explain what the problem is? Then I can vote for you also! – Changnam Hong Apr 27 '17 at 12:43
1

You can only present Viewcontroller on on Any viewcontroller And you were presenting on Navigation stack – Ajjjjjjjj Apr 27 '17 at 12:47

iOS - After presentViewController nothing clickable except navigationBar

1 Answers1