searchDisplayController被釋放，崩潰

Question

有一次，這工作得很好，很明顯，事情已經改變。當我離開裝載searchDisplayController的viewController時，我的應用程序正在向已釋放的實例發送消息。堆棧是爲什麼我相信這是searchDisplayController：

看着我的代碼，我不知道它在哪裏得到釋放。我會很感激任何想法。謝謝。

編輯： 我應該補充說，如果我註釋掉我的viewDidDisappear方法，崩潰停止。

-(void)viewDidDisappear:(BOOL)animated { 
     // save the state of the search UI so that it can be restored if the view is re-created 
    self.searchWasActive = [self.searchDisplayController isActive]; 
    self.savedSearchTerm = [self.searchDisplayController.searchBar text]; 
    self.savedScopeButtonIndex = [self.searchDisplayController.searchBar selectedScopeButtonIndex]; 
} 

下面是相關位：

@interface ShowAttributesViewController : UIViewController <UITableViewDataSource, UITableViewDelegate, UISearchDisplayDelegate, UISearchBarDelegate> 
{ 
    IBOutlet UITableView *attributesTableView; 
    NSString  *savedSearchTerm; 
    NSInteger savedScopeButtonIndex; 
    BOOL   searchWasActive; 
} 
@property (nonatomic, retain) UITableView *attributesTableView; 
@property (nonatomic, retain) NSMutableArray *filteredattributesArray; 
@property (nonatomic, copy) NSString *savedSearchTerm; 
@property (nonatomic) NSInteger savedScopeButtonIndex; 
@property (nonatomic) BOOL searchWasActive; 



- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    self.filteredattributesArray = [NSMutableArray arrayWithCapacity:[[[SharedAppData sharedStore] attributesArray] count]]; 

    if (self.savedSearchTerm) 
    { 
     [self.searchDisplayController setActive:self.searchWasActive]; 
     [self.searchDisplayController.searchBar setSelectedScopeButtonIndex:self.savedScopeButtonIndex]; 
     [self.searchDisplayController.searchBar setText:savedSearchTerm]; 

     self.savedSearchTerm = nil; 
    } 
} 

-(void)viewDidDisappear:(BOOL)animated { 
    self.searchWasActive = [self.searchDisplayController isActive]; 
    self.savedSearchTerm = [self.searchDisplayController.searchBar text]; 
    self.savedScopeButtonIndex = [self.searchDisplayController.searchBar selectedScopeButtonIndex]; 
} 

-(void)viewDidUnload { 

    self.filteredattributesArray = nil; 
} 

- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString { 
    [self filterContentForSearchText:searchString]; 
    return YES; 
} 

- (void)searchDisplayController:(UISearchDisplayController *)controller willUnloadSearchResultsTableView:(UITableView *)tableView { 

    [attributesTableView reloadData]; 
} 

Answer 1

大量挖掘後，與其他人一樣，我發現這個職位能解決問題。

UISearchDisplayController autorelease crash