Question

I have a label on my main View. I have a button which brings me to another view. On it I have a button to change my label which is on the main view.

How can I do this? I included a projet, could someone help me please…

Answer 1

I usually use a delegate protocol:

in the second view h add :

@protocol viewControllerDelegate;

@interface viewController : UIView  

id < viewControllerDelegate > delegate;  
@property (nonatomic, assign) id < QuickViewControllerDelegate > delegate;

@end

@protocol viewControllerDelegate

- (void)viewController:(ViewController *)controller stringForLabel:(NSString*)string; 

@end

in the second view m file call:

[delegate quickViewController:self
stringForLabel:@"your string"];

in the main view h file add: , like that:

 @interface MainView:UIViewController<viewControllerDelegate>

in the main view m file:

first: when you init the second view don’t forget to add:

secondview.delegate = self;

other wise it wont work.

second: add the delegate function:

 - (void)viewController:(ViewController*)controller stringForLabel:(NSString*)string{

    //set the label from the string passed

    lable.text = string;

    }

hope it will help
shani