How to enable/disable in each row of UITableview iOS

Question

I need to disable/enable uibutton in each row of UItableview, I compare 2 NSMutablearray to enable/disable it.I tried below code but it always enable button in first row. Where's mistake in my code?

 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSString *simpleTableIdentifier = [NSString stringWithFormat:@"%d,%d",indexPath.section,indexPath.row];

    UITableViewCell *cell= [_tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];


    UIButton *pausebtn= [UIButton buttonWithType:UIButtonTypeCustom];

    if (cell == nil) 
    {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier] autorelease];
        [pausebtn setFrame:CGRectMake(285, 10, 30,30)];
        [pausebtn setTag:4000];
        [pausebtn setImage:[UIImage imageNamed:@"Pause.png"] forState:UIControlStateNormal];
        [pausebtn addTarget:self action:@selector(pausebtnClicked:event:) forControlEvents:UIControlEventTouchDown];
        [cell.contentView addSubview:pausebtn];

    }

     pausebtn = (UIButton*)[cell.contentView viewWithTag:4000];
    [pausebtn addTarget:self action:@selector(pausebtnClicked:event:) forControlEvents:UIControlEventTouchDown];
    [pausebtn setImage:[UIImage imageNamed:@"Pause.png"] forState:UIControlStateNormal];

   //check 2 arrays

   if ([[Array1 objectAtIndex:indexPath.row] integerValue] != [[Array2 objectAtIndex:indexPath.row] integerValue]) 
   {
        pausebtn.enabled = YES;
   }
   else{
       pausebtn.enabled = NO;
   }


   return cell;
}

Thanks for your help.

Answer 1

Declare your UIButton before checking if cell is nil and creating it. Create UIButton only if cell is nill If cell already exists, get it by tag.

UIButton *pausebtn;

if (cell == nil) {
    cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier] autorelease];
    pausebtn= [UIButton buttonWithType:UIButtonTypeCustom];
    .....

}
    pausebtn = (UIButton*)[cell.contentView viewWithTag:4000];
    .....