Question

Class1 i have

textClass1 = @”Hello”

how to send String to Class2

Label.text = textClass1 ?

Thank you 😀

Answer 1

In your Class1.H set a protocol:

@protocol Class_1_Delegate
@optional
- (void) ASimpleFunction:(NSString*)val;
@end

in any class where do you want to get the value, add delegate (in the .H) like this:

@interface Class2 : UIViewController <Class_1_Delegate> { }

Now, implement in Class2.M your

- (void) ASimpleFunction:(NSString*)val {
}

and remember to set delegate for class1!

class1.delegate = self (class2)

it’s all!
Now, you are able to call ASimpleFunction from any classes that implements your protocols!

If you don’t like this way, see NSNotifications from apple docs.

hope this helps.