iOS Global variables in Objective-C?

[Septimus P]

Hi,

I have written a class and declared a variable. How can I reach it with different messages?

Interface-File Deklarations:

int value;

- (void)valueHasChangedint)v;
- (void)showIt;

Implementation-File:

- (void)valueHasChangedint)v {
value = v;
}

- (void)showIt {
NSString *sendtext = [NSString stringWithFormat"%i", value];
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle:sendtext message" Here it is! " delegate:self
cancelButtonTitle"OK" otherButtonTitles:nil];
[alert show];
[alert release];
}

 

[firewood]

Obj-C is just a wrapper around C. You can declare and instantiate global variables (and functions) outside the class definitions, just as in standard C. Then access them from anywhere they are declared (as an extern maybe).

Look for a C programming language primer for examples.

.

 

[Septimus P]

Aah, thank you!