attributedTitleForRow

ListPicker.m

- (NSAttributedString *)pickerView:(UIPickerView *)pickerView attributedTitleForRow:(NSInteger)row forComponent:(NSInteger)component {
    NSString *title = [[self.items objectAtIndex:row] objectForKey:@"text"];
    NSString *color = [[self.items objectAtIndex:row] objectForKey:@"color"];
    NSAttributedString *attrStr;

    if ([ color isEqualToString:@"green"]) {
      attrStr = [[NSAttributedString alloc] initWithString:title attributes:@{ NSForegroundColorAttributeName : [UIColor greenColor] }];
    } else {
      attrStr = [[NSAttributedString alloc] initWithString:title attributes:@{ NSForegroundColorAttributeName : [UIColor blackColor] }];
    }

    return attrStr;

}