UISearchBarDelegate and UITableView not working together?

Question

I have a table view controller with a standard UISearchBar

I want to replace the first row in the table with the text in the search bar as it gets typed. I thought this would work but it doesn't:

- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
{
    // results is a mutable array with an empty string at index 0
    [[self results] replaceObjectAtIndex:0 withObject:searchText];   
    [[self tableView] reloadData];
}

If I log the results array to the console it is correctly replacing the object, but it is not getting picked up by the table view.

I have the table data source set up as per usual:

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


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

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

    // Configure the cell...

    [[cell textLabel] setText:[[self results] objectAtIndex:[indexPath row]]];

    return cell;
}

If I just use insertObjectAtIndex: or insertObject: it does show up the results. Just not when I'm trying to replace first object. Help please! :)

Try killing this line: `if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; }` . The reason I say this is that you are alloc-ing each cell. — Gobot, Mar 16 '12 at 14:47
Here's a post that I had stashed away: http://stackoverflow.com/questions/2286669/iphone-how-to-purge-a-cached-uitableviewcell — Gobot, Mar 16 '12 at 14:50

score 0 · Accepted Answer · answered Mar 16 '12 at 15:27

0

Ok figured it out. Really stupid too.... The searchBar was covering the first row of the tableView, so I couldn't see it updating. Doh.

answered Mar 16 '12 at 15:27

Cameron

4,181
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score -1 · Answer 2 · edited May 23 '17 at 12:27

-1

Try killing this line: if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; } . The reason I say this is that you are alloc-ing each cell.

Here's a post that I had stashed away: iPhone: How to purge a cached UITableViewCell

edited May 23 '17 at 12:27

Community

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answered Mar 16 '12 at 14:26

Gobot

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How are you implementing your tableview datasource delegate methods? – Gobot Mar 16 '12 at 14:30

UISearchBarDelegate and UITableView not working together?

2 Answers2