How do I change the color of the side Alphabet in an indexed UITableView?

Question

I have a table view with an alphabetical index and am using the side alphabet to get through the list quickly. For those not familiar, that uses this:

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Answer 1

Here's the best solution I've found to adjust the background colour of the index bar on the side. It works in iOS7 and probably iOS6.

Add this to your viewDidLoad

if ([_tableView respondsToSelector:@selector(setSectionIndexColor:)]) {
    _tableView.sectionIndexBackgroundColor = [UIColor clearColor];
    _tableView.sectionIndexTrackingBackgroundColor = [UIColor whiteColor];
}

The first one is the default colour, the second is the background colour when you are scrolling.