Search Controller问题

Question

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath**
{

    static NSString *CellIdentifier = @"TableCell";
    TableCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];**

    // Configure the cell...

    int row = [indexPath row];

    cell.TitleLabel.text = _Title[row];
    cell.DescriptionLabel.text = _Description[row];
    cell.FeeSchedule.text = _Fschedule[row];
    cell.NonFS.text = _Nonfeeschedule[row];
    cell.ThumbImage.image = [UIImage imageNamed:_Images[row]];

    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    }

    cell.textLabel.text = [medicalCodes objectAtIndex:indexPath.row];
    return cell;


    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    }

    if (tableView == self.searchDisplayController.searchResultsTableView) {
        cell.textLabel.text = [searchResults objectAtIndex:indexPath.row];
    } else {
        cell.textLabel.text = [medicalCodes objectAtIndex:indexPath.row];
    }

    return cell;
}


-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {


    if([[segue identifier] isEqualToString:@"ShowDetails"]) {
        DetailViewController *detailviewcontroller = [segue destinationViewController];

        NSIndexPath *myIndexPath = [self.tableView indexPathForSelectedRow];

        int row = [myIndexPath row];
        detailviewcontroller.DetailModal = @[_Title[row],_Description[row],_Fschedule[row],_Nonfeeschedule[row],_Images[row]];
    }
}

`enter code here`- (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope
{
    NSPredicate *resultPredicate = [NSPredicate
                                    predicateWithFormat:@"SELF contains[cd] %@",
                                    searchText];

    searchResults = [medicalCodes filteredArrayUsingPredicate:resultPredicate];
}

-(BOOL)searchDisplayController:(UISearchDisplayController *)controller
shouldReloadTableForSearchString:(NSString *)searchString
{
    [self filterContentForSearchText:searchString
                               scope:[[self.searchDisplayController.searchBar scopeButtonTitles]
                                      objectAtIndex:[self.searchDisplayController.searchBar
                                                     selectedScopeButtonIndex]]];

    return YES;
}

我有一个问题，我正在尝试让我的搜索栏工作，但是此时此刻正在停止导致应用程序崩溃。我对任何更好地添加搜索栏的方法持开放态度。关于我能做什么的任何建议？任何帮助表示赞赏。

Answer 1

如果您在主线程中更新数据

或

如果您使用UI主线程重新加载tableview更新

             dispatch_async(dispatch_get_main_queue(), ^(void){
              [self.tableView reloadData]
             });

Answer 2

在此处查看代码，即使在分配单元之前，您也正在配置单元。 你回复电话后，你在下一行之后写的代码将不受影响。

cell.textLabel.text = [medicalCodes objectAtIndex:indexPath.row];
  return cell;

我不确定你要在-tableView中实现什么：cellForRowAtIndexPath：。但我建议你试试这个，

- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"TableCell";
    TableCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier
                                                      forIndexPath:indexPath];
    //you can also allocate your custom cell here and then configure it as your need.
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
                                      reuseIdentifier:CellIdentifier];
    }
    // Configure the cell...
    int row = [indexPath row];

    cell.TitleLabel.text = _Title[row];
    cell.DescriptionLabel.text = _Description[row];
    cell.FeeSchedule.text = _Fschedule[row];
    cell.NonFS.text = _Nonfeeschedule[row];
    cell.ThumbImage.image = [UIImage imageNamed:_Images[row]];

    cell.textLabel.text = medicalCodes[indexPath.row];
    return cell;

}