making a "load more" button in uitableviewcell?

hey, Could any one guide me through this I have 开发者_JAVA技巧around 15 entries in table I would like another 15 to come up with the load more in last UITableViewCell. could anyone help me?

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to show an extra row in the tableview, in

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return dataRows+1;
    }

In

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

        //after setting tableviewcell

        if(indexPath.row==dataRows){

        cell.textLabel.text=@"Load More Rows";
        }
    }

In

 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
    {

    if(indexPath.row==dataRows){
    //there you can write code to get next rows
    }
 }

You need to update the numberOfRows variable according to the displayed rows.

Edit: After fetching the extra entries, you can add them to the existing entries array using the following method. Your original array should be a NSMutableArray to use this method.

[originalEntriesArray addObjectsFromArray:extraEntriesArray];

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I wrote an example project that does just this. Download it from GitHub https://github.com/Abizern/PartialTable

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I wrote something that might be helpful : https://github.com/nmondollot/NMPaginator

It encapsulates pagination, and works with pretty much any webservice using page and per_page parameters. It also features a UITableView with automatic fetching of next results as you scroll down.

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hope this helps

I took an Mutable array and an integer variable and set the total count of the array to the integer variable

arr = [[NSMutableArray alloc]initWithObjects:@"Radix",@"Riki", nil];
dataRows = [arr count];

and then i set the number of rows in the sections as per the integer variable in the datasource method of the table

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // Return the number of rows in the section.
    return dataRows+1;
}

because you wanted an extra cell at the end.

Now its time to set the text of the table cell

- (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...

//setting the text of the cell as per Mutable array
if (indexPath.row < [arr count]) {

    cell.textLabel.text = [arr objectAtIndex:indexPath.row];
}

 //setting the text of the extra cell

if (indexPath.row == dataRows) {
    cell.textLabel.text = @"more cells";
}     
return cell;

}

now on the hit of the more cells cell you want extra cells right so just add your code inside the

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

method, means you have to do something like this

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    if(indexPath.row == dataRows)
    {
        //code for exra cells please
    }
}

Run your app to check this code out.