ITSharedController.m

   1 #import "ITSharedController.h"
   2
   3 static NSMutableDictionary *_ITSharedController_sharedControllers = nil;
   4
   5 @implementation ITSharedController
   6
   7 + (id)sharedController {
   8         if (!_ITSharedController_sharedControllers) {
   9                 _ITSharedController_sharedControllers = [[NSMutableDictionary alloc] init];
  10         }
  11         id thisController;
  12         if (thisController = [_ITSharedController_sharedControllers objectForKey:NSStringFromClass(self)]) {
  13                 return thisController;
  14         } else {
  15                 thisController = [[self alloc] init];
  16                 [_ITSharedController_sharedControllers setObject:thisController forKey:NSStringFromClass(self)];
  17                 return thisController;
  18         }
  19 }
  20
  21 @end