UITableView搜索行不對應

Question

現在，我正在開發一個由表格視圖和搜索欄組成的應用程序。當有人點擊桌子上的某一行時，它將加載一個具有相應頁面的新視圖。這是我的代碼：

RootViewController.h：

@interface RootViewController : UIViewController <UITableViewDataSource, UITableViewDelegate, UISearchDisplayDelegate, UISearchBarDelegate> 
{ 
    UITableView *mainTableView; 
    NSMutableArray *contentsList; 
    NSMutableArray *searchResults; 
    NSString *savedSearchTerm; 
} 

@property (nonatomic, retain) IBOutlet UITableView *mainTableView; 
@property (nonatomic, retain) NSMutableArray *contentsList; 
@property (nonatomic, retain) NSMutableArray *searchResults; 
@property (nonatomic, copy) NSString *savedSearchTerm; 

- (void)handleSearchForTerm:(NSString *)searchTerm; 

@end 

RootViewController.m：

#import "RootViewController.h" 
#import "Hydrogen.h" 
#import "Helium.h" 

@implementation RootViewController 

@synthesize mainTableView; 
@synthesize contentsList; 
@synthesize searchResults; 
@synthesize savedSearchTerm; 

- (void)dealloc 
{ 
    [mainTableView release], mainTableView = nil; 
    [contentsList release], contentsList = nil; 
    [searchResults release], searchResults = nil; 
    [savedSearchTerm release], savedSearchTerm = nil; 

    [super dealloc]; 
} 

- (void)viewDidUnload 
{ 
    [super viewDidUnload]; 

    // Save the state of the search UI so that it can be restored if the view is re-created. 
    [self setSavedSearchTerm:[[[self searchDisplayController] searchBar] text]]; 

    [self setSearchResults:nil]; 
} 

- (void)viewDidLoad 
{ 

    [super viewDidLoad]; 

    NSMutableArray *array = [[NSMutableArray alloc] init]; 
    [array addObject:@"Hydrogen"]; 
    [array addObject:@"Helium"];  
    [self setContentsList:array]; 
    [array release], array = nil; 

    // Restore search term 
    if ([self savedSearchTerm]) 
    { 
     [[[self searchDisplayController] searchBar] setText:[self savedSearchTerm]]; 
    } 
} 

- (void)viewWillAppear:(BOOL)animated 
{ 

    [super viewWillAppear:animated]; 

    [[self mainTableView] reloadData]; 
} 

/* 
// Override to allow orientations other than the default portrait orientation. 
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 
// Return YES for supported orientations 
return (interfaceOrientation == UIInterfaceOrientationPortrait); 
} 
*/ 

- (void)didReceiveMemoryWarning { 
    // Releases the view if it doesn't have a superview. 
    [super didReceiveMemoryWarning]; 

    // Release any cached data, images, etc that aren't in use. 
} 

- (void)handleSearchForTerm:(NSString *)searchTerm 
{ 

    [self setSavedSearchTerm:searchTerm]; 

    if ([self searchResults] == nil) 
    { 
     NSMutableArray *array = [[NSMutableArray alloc] init]; 
     [self setSearchResults:array]; 
     [array release], array = nil; 
    } 

    [[self searchResults] removeAllObjects]; 

    if ([[self savedSearchTerm] length] != 0) 
    { 
     for (NSString *currentString in [self contentsList]) 
     { 
      if ([currentString rangeOfString:searchTerm options:NSCaseInsensitiveSearch].location != NSNotFound) 
      { 
       [[self searchResults] addObject:currentString]; 
      } 
     } 
    } 
} 

#pragma mark - 
#pragma mark UITableViewDataSource Methods 

- (NSInteger)tableView:(UITableView *)tableView 
numberOfRowsInSection:(NSInteger)section 
{ 

    NSInteger rows; 

    if (tableView == [[self searchDisplayController] searchResultsTableView]) 
     rows = [[self searchResults] count]; 
    else 
     rows = [[self contentsList] count]; 

    return rows; 
} 

- (UITableViewCell *)tableView:(UITableView *)tableView 
     cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    NSInteger row = [indexPath row]; 
    NSString *contentForThisRow = nil; 

    if (tableView == [[self searchDisplayController] searchResultsTableView]) 
     contentForThisRow = [[self searchResults] objectAtIndex:row]; 
    else 
     contentForThisRow = [[self contentsList] objectAtIndex:row]; 

    static NSString *CellIdentifier = @"CellIdentifier"; 

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) 
    { 
     cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; 
     // Do anything that should be the same on EACH cell here. Fonts, colors, etc. 
    } 

    // Do anything that COULD be different on each cell here. Text, images, etc. 
    [[cell textLabel] setText:contentForThisRow]; 

    return cell; 
} 

#pragma mark - 
#pragma mark UITableViewDelegate Methods 

- (void)tableView:(UITableView *)tableView 
didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    [tableView deselectRowAtIndexPath:indexPath animated:YES]; 
    if ([[contentsList objectAtIndex:indexPath.row] isEqual:@"Hydrogen"]) 
    { 
     Hydrogen *hydrogen = [[Hydrogen alloc] initWithNibName:@"Hydrogen" bundle:nil]; 
     [self.navigationController pushViewController:hydrogen animated:YES]; 
     [hydrogen release]; 
    } 
    else if ([[contentsList objectAtIndex:indexPath.row] isEqual:@"Helium"]) 
    { 
     Helium *helium = [[Helium alloc] initWithNibName:@"Helium" bundle:nil]; 
     [self.navigationController pushViewController:helium animated:YES]; 
     [helium release]; 
    } 
} 

#pragma mark - 
#pragma mark UISearchDisplayController Delegate Methods 

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

- (void)searchDisplayControllerWillEndSearch:(UISearchDisplayController *)controller 
{ 
    [self setSavedSearchTerm:nil]; 

    [[self mainTableView] reloadData]; 
} 

@end 

此代碼的所有作品，完美，除了一個缺陷。當我使用搜索時，結果如預期顯示，結果與輸入的字符串匹配。但是，當我點擊搜索結果的某一行時，相應的XIB文件不會加載;相反，它會加載與UITableView中的原始文本相對應的XIB文件，而不進行搜索。例如，如果我在搜索中鍵入單詞「氦」，它將顯示一個結果「氦」，但當我點擊結果加載「氫」頁時，因爲氫是在第一行被點擊時訪問的原始鏈接。

任何人都可以幫助我嗎？我在這段代碼上花了很多時間，而且真的讓人感到沮喪。

非常感謝那些能夠幫助我的人！

Answer 1

在這裏，你去。在didSelectRowAtIndexPath方法您的內容更改爲這樣的事情：

NSArray *objectsToUse = nil; 
if (tableView == [[self searchDisplayController] searchResultsTableView]) 
    objectsToUse = [self searchResults]; 
else 
    objectsToUse = [self contentsList]; 
if ([[objectsToUse objectAtIndex:indexPath.row] isEqual:@"Hydrogen"]) 
{ 
    Hydrogen *hydrogen = [[Hydrogen alloc] initWithNibName:@"Hydrogen" bundle:nil]; 
    [self.navigationController pushViewController:hydrogen animated:YES]; 
    [hydrogen release]; 
} 
else if ([[objectsToUse objectAtIndex:indexPath.row] isEqual:@"Helium"]) 
{ 
    Helium *helium = [[Helium alloc] initWithNibName:@"Helium" bundle:nil]; 
    [self.navigationController pushViewController:helium animated:YES]; 
    [helium release]; 
}