iPad搜索显示控制器显示从第二个单元格开始的结果

Question

我在我的iPad应用中添加了一个使用localSearch的搜索栏和搜索显示控制器。我相信我正确地实现了代表。搜索工作正常并显示结果，但问题是这些结果从第二个单元格开始。弹出窗口中的第一个单元格为空。我仔细检查了一下，看看地图项是否正确，内容是否正确，它们是否正确。

代码：

- (void) searchBarSearchButtonClicked:(UISearchBar *)searchBar
{
    if (![self connected]) {
        [[[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Cannot Connect",nil)
                                    message:NSLocalizedString(@"Please make sure you are connected to the internet and try again.",nil)
                                   delegate:nil
                          cancelButtonTitle:NSLocalizedString(@"OK",nil) otherButtonTitles:nil] show];
    }
    else if ([mainToolbar isHidden])
    {
        [[[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Search Unavailable",nil)
                                    message:NSLocalizedString(@"Please make sure you aren't drawing an AOI or using a tool and then try again.",nil)
                                   delegate:nil
                          cancelButtonTitle:NSLocalizedString(@"OK",nil) otherButtonTitles:nil] show];
    }
    else {
        // Cancel any previous searches.
        [localSearch cancel];

        // Perform a new search.
        MKLocalSearchRequest *request = [[MKLocalSearchRequest alloc] init];
        request.naturalLanguageQuery = self.searchBar.text;
        request.region = self.mapView.region;

        [UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
        localSearch = [[MKLocalSearch alloc] initWithRequest:request];

        [localSearch startWithCompletionHandler: ^(MKLocalSearchResponse *response, NSError *error){
            [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;

            if ([response.mapItems count] == 0)
            {
                [[[UIAlertView alloc] initWithTitle:NSLocalizedString(@"No Results",nil)
                                            message:nil
                                           delegate:nil
                                  cancelButtonTitle:NSLocalizedString(@"OK",nil) otherButtonTitles:nil] show];
                return;
            }

            if (error != nil)
            {
                [[[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Map Error",nil)
                                            message:NSLocalizedString(@"Sorry.", nil)
                                           delegate:nil
                                  cancelButtonTitle:NSLocalizedString(@"OK",nil) otherButtonTitles:nil] show];
                return;
            }

            results = response;

            [self.searchDisplayController.searchResultsTableView reloadData];
        }


         ];
    }
}


- (NSInteger) tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return [results.mapItems count];
}


- (UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *IDENTIFIER = @"SearchResultsCell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:IDENTIFIER];
    if (cell == nil)
    {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:IDENTIFIER];
    }

    MKMapItem *item = results.mapItems[indexPath.row];

    cell.textLabel.text = item.name;
    cell.detailTextLabel.text = item.placemark.addressDictionary[@"Street"];

    return cell;
}

以下是该问题的屏幕截图。

Answer 1

第一行包含表头。