notification

A页面

 //向列表页面B发送一个通知 postShopZanCountData

 NSMutableDictionary *dic=[[NSMutableDictionaryalloc] init];

        

[[NSNotificationCenterdefaultCenter] postNotificationName:@"postData"object:niluserInfo:dic];

B 页面

 [[NSNotificationCenterdefaultCenter]  addObserver:selfselector:@selector(update:) name:@"postData"object:nil];

-(void)update:(NSNotification*)notification{

    

    NSDictionary *dic=notification.userInfo;

}