How can i update one of viewcontollers when i go to KLControllerCardStateDefault state?

[leoru]

Hi! I want to delete buttons from navbar in contollers when i go to KLControllerCardStateDefault state, but I did not get.

I tried to do:

-(void) noteViewController: (KLNoteViewController) noteViewController didUpdateControllerCard:(KLControllerCard)controllerCard toDisplayState:(KLControllerCardState) toState fromDisplayState:(KLControllerCardState) fromState {

if (toState == KLControllerCardStateDefault) { NSIndexPath path = [self indexPathForControllerCard:controllerCard]; TDListViewController viewController = (TDListViewController *)[self noteView:self viewControllerForRowAtIndexPath:path]; [viewContoller updateUI]; }

}

// updateUI in TDListViewController -(void)updateUI1 { self.navigationItem.leftBarButtonItem = nil; }

[KieranLafferty]

What is the behaviour when you do this? Although you are using the control to organize your UINavigationControllers, the behaviour of the navigation controllers will not change as a result of being contained within the KLNoteViewContoller.

I would attempt to do it using the method call rather than the accessor. i.e. try [self.navigationItem setLeftBarButtonItem: nil animated: YES/NO];

[leoru]

The behaviour - nothing happens. i tried [self.navigationItem setLeftBarButtonItem: nil animated: YES/NO]; nothing happens.

The problem, that if i set action on button within view: -(void)DeleteLeftItem:(id)sender { [self updateUI]; } and press this button, leftbaritem will be removed, but when i call updateUI in noteviewcontroller delegate, nothing happens.

[KieranLafferty]

Have you put a breakpoint to see if the code is being executed?

On 2013-02-27, at 11:37 AM, Kirill Kunst notifications@github.com wrote:

The behaviour - nothing happens. i tried [self.navigationItem setLeftBarButtonItem: nil animated: YES/NO]; nothing happens.

The problem, that if i set action on button within view: -(void)DeleteLeftItem:(id)sender { [self updateUI]; } and press this button, leftbaritem will be removed, but when i call updateUI in noteviewcontroller delegate, nothing happens.

— Reply to this email directly or view it on GitHub.

[leoru]

Ofcause, the code executed, but nothing happens.

[leoru]

i tried set navbar title in updateUI, but I did not get

[KieranLafferty]

Ah I think I know what is wrong

you need to do

self.navigationController.navigationItem.leftBarButtonItem = nil;

[KieranLafferty]

otherwise check fi self.navigationItem is nil or not to see if you are actually referencing anything

[leoru]

i tried self.navigationController.navigationItem.leftBarButtonItem = nil; nothing happens.

and i check self.navigationItem is nill or not - it's not nil.

[leoru]

Can you try to add 3-4 viewcontrollers to klnoteviewcontroller and update title or right or left bar item when viewcontrollers go to KLControllerCardStateDefault state? Maybe i do anything wrong.

[KieranLafferty]

tbh this is a navigationcontroller issue not related to the control. As mentioned previously the control just organizes UIViewControllers, what you do with the UIViewControllers/UINavigationControllers is up to you. Try performing the same operation with the UINavigationController outside of the control and see if it works

[leoru]

Try performing the same operation with the UINavigationController outside of the control and see if it works I try to change nav item title and rightbaritem from uibutton action and everything is ok. but when i try to do this in -(void) noteViewController: (KLNoteViewController) noteViewController didUpdateControllerCard:(KLControllerCard)controllerCard toDisplayState:(KLControllerCardState) toState fromDisplayState:(KLControllerCardState) fromState {}, nothing happens,unfortunately

[KieranLafferty]

Try

if (toState == KLControllerCardStateDefault) { NSIndexPath path = [self indexPathForControllerCard:controllerCard]; TDListViewController viewController = (TDListViewController *)[self noteView:self viewControllerForRowAtIndexPath:path]; viewController.navigationController.navigationItem.leftBarButtonItem= nil; }

}

[KieranLafferty]

just throwing out ideas... :P

[leoru]

i tried that :) unfortunately, nothing happens

[KieranLafferty]

try performing [noteView reloadDataAnimated:NO]; after the change

[KieranLafferty]

Using a break poing check if the line :

TDListViewController viewController = (TDListViewController *)[self noteView:self viewControllerForRowAtIndexPath:path];

is actually returning a TDListViewController and not a UINavigationController

[KieranLafferty]

Just a note as well, in the code:

NSIndexPath path = [self indexPathForControllerCard:controllerCard]; TDListViewController viewController = (TDListViewController *)[self noteView:self viewControllerForRowAtIndexPath:path]; viewController.navigationController.navigationItem.leftBarButtonItem= nil;

you need a * after NSIndexPath and TDListViewController

[leoru]

i understand

[leoru]

TDListViewController viewController = (TDListViewController *)[self noteView:self viewControllerForRowAtIndexPath:path];

it's return me right TDListViewController with right variables

[leoru]

try performing [noteView reloadDataAnimated:NO]; after the change if (toState == KLControllerCardStateDefault) { NSIndexPath path = [self indexPathForControllerCard:controllerCard]; TDListViewController viewController = (TDListViewController *)[self noteView:self viewControllerForRowAtIndexPath:path]; viewController.navigationController.navigationItem.leftBarButtonItem= nil; viewController.navigationItem.leftBarButtonItem= nil; [self reloadDataAnimated:NO]; }

if i run this code, i have exception:

Terminating app due to uncaught exception 'NSRangeException', reason: '*\ -[_PFArray objectAtIndex:]: index (2147483647) beyond bounds (2)'

[KieranLafferty]

Note you can also get the uiNavigationController reference by simply doing controllerCard.navigationController

[leoru]

Maybe the problem in my

• (UIViewController )noteView:(KLNoteViewController)noteView viewControllerForRowAtIndexPath:(NSIndexPath *)indexPath {

  //Initialize a blank uiviewcontroller for display purposes UIStoryboard st = [UIStoryboard storyboardWithName:[[NSBundle mainBundle].infoDictionary objectForKey:@"UIMainStoryboardFile"] bundle:[NSBundle mainBundle]]; TDListViewController viewController = [st instantiateViewControllerWithIdentifier:@"ListRootViewController"]; viewController.list = self.listsData[indexPath.row]; //Return the custom view controller return viewController; }

[KieranLafferty]

You need to have * after UIStoryboard and TDListViewController. You are initializign a pointer

[KieranLafferty]

Be sure you understand what the * actually means in the context of assignment

[KieranLafferty]

you must be getting warnings for that no?

[leoru]

I understand, i paste this piece of code from xcode, but in xcode i have * when it's nessesary, but there * are hidden. So strange

[KieranLafferty]

ahhh ok I thought you were just not using them and was wondering how it was even working :P

[leoru]

If I did not have *, my code won't be compiled

[leoru]

I try a dirty hack. i add viewController property to KLControllerCard. @property (nonatomic, strong) UIViewController* viewController;

And in reloadData add: UIViewController* viewController = [self noteView:self viewControllerForRowAtIndexPath:[NSIndexPath indexPathForRow:count inSection:0]];

    UINavigationController* navigationController = [[UINavigationController alloc] initWithRootViewController:viewController];

    KLControllerCard* noteContainer = [[KLControllerCard alloc] initWithNoteViewController: self
                                                                                navigationController: navigationController
                                                                                               index:count];

// i add this line noteContainer.viewController = viewController;

And now in -(void) noteViewController: (KLNoteViewController) noteViewController didUpdateControllerCard:(KLControllerCard)controllerCard toDisplayState:(KLControllerCardState) toState fromDisplayState:(KLControllerCardState) fromState { if (toState == KLControllerCardStateDefault) { [((TDListViewController *)controllerCard.viewController) updateUI]; }

}

[leoru]

Do you think it looks like a patch to your component? :P