UItableView：无法更改单元格的颜色

Question

I am new to iPhone programming and I was unable to change background of my Table view 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];
    if((indexPath.row%2)!=0)
    {
        [cell setBackgroundColor:[UIColor clearColor]];
        [cell setBackgroundColor:[UIColor redColor]];
        //[cell ];
    }
    else 
    {
        [cell setBackgroundColor:[UIColor whiteColor]];
    }

}

// Configure the cell...


[cell setText:[menuItems objectAtIndex:indexPath.row]];

return cell;

}

Please help me to understand the reason why??

Thanx in advance

Answer 1

Ok got the answer

 - (void)tableView: (UITableView*)tableView willDisplayCell: (UITableViewCell*)cell forRowAtIndexPath: (NSIndexPath*)indexPath
{
    cell.backgroundColor = indexPath.row % 2 
    ? [UIColor colorWithRed: 0.0 green: 0.0 blue: 1.0 alpha: 1.0] 
    : [UIColor whiteColor];
    cell.textLabel.backgroundColor = [UIColor clearColor];
    cell.detailTextLabel.backgroundColor = [UIColor clearColor];
}