在视图内滚动视图

Question

我需要你的帮助。基本上我在主视图控制器中创建了一个小的scrollView和一个pageControl。现在，当按下滚动视图中的按钮时，我失去了mainViewController中每个属性的值。为了帮助您获得更清晰的图片，请让我解释一下：

（NoteViewController.m）这是从scrollview按下的按钮响应的操作

- (IBAction)removePerson:(UIButton *)sender {
MainViewController *remover = [[MainViewController alloc] init];
[remover removePersonWithPage:pageNumber];
[self.view removeFromSuperview];
[remover release]; }

（MainViewController.m）

- (void)removePersonWithPage:(int)page {
// The managedObjectContext is lost the moment it leaves MainViewController.m and goes to NoteViewController.m
// so you need to reload the managedObjectContext
if (managedObjectContext == nil) 
{ 
    managedObjectContext = [(OrdersAppDelegate *)[[UIApplication sharedApplication] delegate] managedObjectContext]; 
}

// Get the list of people (Persons) from the managed Object Context
arrayOfPeople = [[NSMutableArray alloc] initWithArray:[self fetchDataWithEntity:@"Person" andSortKey:@"pageId"]];

// Find a specific person to delete using their page number and delete it finally remove it from array
NSManagedObject *personToDelete = [arrayOfPeople objectAtIndex:page];
[managedObjectContext deleteObject:personToDelete];
[arrayOfPeople removeObjectAtIndex:page];

// kNumberOfPages is replaced with the new number of people
kNumberOfPages = arrayOfPeople.count;

/* This is where problem occurs */
self.pageControl.numberOfPages = kNumberOfPages;
NSLog(@"The number of pages in the page control in remove is: %d", self.pageControl.numberOfPages); 

[self saveObjectContext]; 
}

所以一切正常但是当我到达那里的NSLog时，当它应该返回数据库中的页数时它返回0。我已经在这几天工作了，无法弄清楚，请帮忙。感谢