Question

I am making a simple app with a tableview that displays results of a test. The results are coming from a simple array. In the array there are just numbers, test scores between 0 and 100.

I’m trying to get the UITableView row to change the colour depending on the results. Above or equal to 75 will display a green background, >= 50 && < 75 will be yellow, > 50 will be red.

This is what I have so far. My understanding is quite basic.

- (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];
    }

    // Configure the cell...
    // Set up the cell...
    NSUInteger row = [indexPath row];
    cell.textLabel.text = [scoresArray objectAtIndex:row];

    // THIS IS WHERE I NEED HELP TO GET THE VALUE FROM THE ARRAY 
    // INTO ????

    if (???? >=75) {
        cell.contentView.backgroundColor = [UIColor greenColor];
    }
    if (???? >=50 && ???? <75) {
        cell.contentView.backgroundColor = [UIColor yellowColor];
    }
    if (???? >=0 && ???? <50) {
        cell.contentView.backgroundColor = [UIColor redColor];
    }
    else {
        cell.contentView.backgroundColor = [UIColor whiteColor];
    }

    return cell;
}

#pragma mark UITableViewDelegate
- (void)tableView: (UITableView*)tableView willDisplayCell: 
(UITableViewCell*)cell forRowAtIndexPath: (NSIndexPath*)indexPath
{
    cell.backgroundColor = cell.contentView.backgroundColor;    
}

If I just put cell.contentView.backgroundColor = [UIColor greenColor];, for example, they all go green.

Answer 1

Assuming that the value is displaying correctly in the textLabel, you can use this:

 NSInteger score = [cell.textLabel.text intValue];

 if (score >=75) {
 ...