不同尺寸的TableView节索引标题大小

Question

I have used sectionForSectionIndexTitle delegate method to create an index for each section on the right side of the tableview , everything is working fine but the problem I am facing is when I run this app on iPhone 5s , the screen size is small as compared to other screen sizes and alphabetic index on the right is not showing within the screen heigh and few alphabets are out of the screen area and not visible to the user. Can some one please guide how I can control the index heigh on the right side of the table view so it fits in small screen dimensions as well.

//Mark - sectionForSectionIndexTitle
    func tableView(_ tableView: UITableView, sectionForSectionIndexTitle title: String, at index: Int) -> Int {
        return groupIndexTitles.firstIndex(of: title)!
    }

Answer 1

OS will automatically truncate your array if it's too long. For example, if you view your contact list in portrait orientation you will see a full index AZ but when you rotate to landscape you'll see A * D * .... and so on. You can't size. But you can create custom tableview and integrate custom index view.