Delegation: delegated method doesn't see outlets

Question

I have two views in the Tab Bar View. I want my second view to inform first view, when its Text Fields have changed value. I've done all the necessary coding for it, but there is one problem - first view doesn't see connected label outlets in the method declaration.

Code of the second view:

- (IBAction)textFieldHasChanged:(UITextField *)sender {

id<HPAAddCarOverallInfoTVCDelegate> strongDelegate = [[HPAAddCarMainViewController alloc] init];

if([strongDelegate respondsToSelector:@selector(addCarOverallInfoVC:textFieldValueChanged:)]) {

    [strongDelegate addCarOverallInfoVC:self textFieldValueChanged:sender.text];
    }
}

Code of the first view:

-(void)addCarOverallInfoVC:(HPAAddCarOverallInfoTableViewController *)viewController textFieldValueChanged:(NSString *)value
{
self.overallVCFieldCount.text = value;
NSLog(@"%@", value);
}

self.overallVCFieldCount.text = value; - value exist, but textField doesn't.

As I think, problem belongs at this line of code:

id<HPAAddCarOverallInfoTVCDelegate> strongDelegate = [[HPAAddCarMainViewController alloc] init];

I guess, that delegate isn't exact view with which I am working with. Bouth views are loaded at the same time via storyboard. If I am correct with my thought, can you tell me please, how can I give a pointer to exact first view which as second view are loaded when Tab Bar View controller goes on the screen?

Answer 1

You're creating a new view controller in textFieldHasChanged. If you have that view controller in IB, instantiate it like this:

UIStoryboard *st = [UIStoryboard storyboardWithName:[[NSBundle mainBundle].infoDictionary objectForKey:@"UIMainStoryboardFile"] bundle:[NSBundle mainBundle]];
id<HPAAddCarOverallInfoTVCDelegate> strongDelegate = st instantiateViewControllerWithIdentifier:@"identifier"];

Where identifier is the identifier you have given your view controller in your storyboard.