Changing cursor color on UISearchBar without changing tintColor

Swift 3.0 and 4 version

searchController.searchBar.tintColor = .white        
UITextField.appearance(whenContainedInInstancesOf: [type(of: searchController.searchBar)]).tintColor = .black

Note that searchBar can't be optional.

If you're fond of functional, yet annoying one-liners in Swift, I got Benjamin's for loop down to this:

searchController.searchBar.tintColor = UIColor.whiteColor()

searchController.searchBar.subviews[0].subviews.flatMap(){ $0 as? UITextField }.first?.tintColor = UIColor.blueColor()

Set your tint color to the color you want the cancel button to be and then use the UIAppearance Protocol to change the tint color on the text field to be the color you wish the cursor to be. Ex:

[self.searchBar setTintColor:[UIColor whiteColor]];                
[[UITextField appearanceWhenContainedIn:[UISearchBar class], nil] setTintColor:[UIColor darkGrayColor]];