Adding cells programmatically to UITableView

Question

I\'ve just recently started programming for the iPhone and I\'m making an application that connects to a database and gets a set of row names and displays them. When selecte

Answer 1

Don't need to use insertRowsAtIndexPaths.

Check: UITableViewDataSource Protocol Reference and UITableView Class Reference

The magic happens between this three methods (UITableViewDataSource protocol methods):

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView;
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section;
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath;

You just need to fill an array. Yes it can be a NSMutableArray.

You can fill the array in - (void)viewDidLoad, for example:

yourItemsArray = [[NSMutableArray alloc] initWithObjects:@"item 01", @"item 02", @"item 03", nil];

And them use the data source methods like this:

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    // Return the number of sections.
    // If You have only one(1) section, return 1, otherwise you must handle sections
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // Return the number of rows in the section.
    return [yourItemsArray 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] autorelease];
    }

    // Configure the cell...
    cell.textLabel.text = [yourItemsArray objectAtIndex:indexPath.row];

    return cell;
}

Like this cells will be created automatically.

If You chage the Array, just need to call:

[self.tableView reloadData];