I'm trying to run a singleton in my iPhone App'.
When I try to implement and to request it from the first class to the singleton's class, it's running but after, when I try to use it from an other class, it doesn't working...
Here's the call to the singleton in the first and second classes:
NSLog([ [MySingleton sharedMySingleton] getAuth]); Her's the Singleton's class :
#import "MySingleton.h" @implementation MySingleton static MySingleton* _sharedMySingleton = nil; @synthesize myToken; +(MySingleton*)sharedMySingleton { @synchronized([MySingleton class]) { if (!_sharedMySingleton) [[self alloc] init]; return _sharedMySingleton; } return nil; } +(id)alloc { @synchronized([MySingleton class]) { NSAssert(_sharedMySingleton == nil, @"Attempted to allocate a second instance of a singleton."); _sharedMySingleton = [super alloc]; return _sharedMySingleton; } return nil; } -(id)init { self = [super init]; if (self != nil) { myToken = [[NSString alloc] initWithString:@""]; } return self; } -(void)setAuth:(NSString*) token { myToken=token; } -(NSString*)getAuth { return myToken; } - (id)copyWithZone:(NSZone *)zone { return self; } - (id)retain { return self; } - (unsigned)retainCount { return UINT_MAX; //denotes an object that cannot be released } - (void)release { // never release } - (id)autorelease { return self; } - (void)dealloc { // Should never be called, but just here for clarity really. [myToken release]; [super dealloc]; } @end I imported correctly the singleton's class in the second class ;-)
That's it!
thanks for your help :-D