Linking UITableView with a NSMutableArray

Question

I've been trying to fill a UITableView with data from a NSMutableArray. I have a View-Based application project and so far I've tried every tutorial I found but so far, it just doesn't work. I linked the dataSource and delegate to the File's Owner, I added the procotols UITableViewDelegate and UITableViewDataSource to my UIViewController, I create an array containing 3 strings just to try and debug, everytime I load the app, the table stays empty.

I'm not sure what could be my error, or where I should look to find the problem, if you guys got any idea that would be nice.

Thank you

Answer 1

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

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

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

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


    NSUInteger row = [indexPath row];

    cell.textLabel.text = [yourArray objectAtIndex:row];

    return cell;
}

That should populate the table from an array. I've used it several times in my app.

Answer 2

Make sure the dataSource and delegate are properly connected to the view controller, also make sure your UITableView is property connected with the outlet if you are using storyboards or a xib file.

If nothing works I recommend you to use XLData that makes UITableView data loading much more simple to implement.

Answer 3

我想您确实忘记了在表视图上调用-reloadData 。