Re: GLobal Variables and Object
Re: GLobal Variables and Object
- Subject: Re: GLobal Variables and Object
- From: Joakim Danielson <email@hidden>
- Date: Wed, 5 May 2004 20:34:58 +0200
An object-oriented solution is to have a Singleton class that you
initialize when your app starts. You probably find several examples of
how to create a Singleton on this list.
Here is a simple (but not perfect) way:
@implementation MySingleton
+ (MySingleton *) instance {
static id _instance = nil;
if (_instance == nil) {
_instance = [[self alloc] init];
}
return _instance;
}
-(id) init {
self = [super init];
if (self) {
//init your global variables here
}
return self;
}
Joakim
On 5 maj 2004, at 17.48, Eli Hughes wrote:
Hello:
What is the easiest way to instiante an object (for example an
NSmutableString)
such that is is visible to ALL functions and methods in a program Is
there an
easy way handling this in objective C? How would I then destroy this
object at
the end of my program?
How generrally does scope work in objective C? In regular C, if a
variable is
defined in a function, it is only visible in that function. In
objective C,
are objects created (say in a method of some object) global in scope?
Basically I have application data that I want accessibly to all of my
window
controller objects and custom handling objects, etc. What is the
safest way to
do this?
Thanks,
Eli hughes
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