Singleton Class sample

//.h file should contain

+ (MySingleton *)sharedInstance;

//.m file must declare as below

+ (MySingleton *)sharedInstance

{

static dispatch_once_t once;

static MySingleton *instance;

dispatch_once(&once, ^{

instance = [[MySingleton alloc] init];

});

return instance;

}

– (id)init

{

if (self = [super init])

{

     someProperty =@”test”;

}

return self;

}