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滚动视图和一个页面控件。现在，当按下滚动视图内的按钮时，我会丢失 mainViewController 中每个属性的值。为了帮助您获得更清晰的了解，让我解释一下：

（NoteViewController.m）这是从滚动视图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，但是当我到达最后的 NSLog 时，当它应该返回数据库中的页数时，它返回 0。我已经研究了好几天了，但无法弄清楚，请帮忙。谢谢