iOS: Determine if device language is Right to Left (RTL)

Question

Is there a way to easily determine if the language the device is set to is right to left (RTL)?

Answer 1

Here is a swift 3 version:

import UIKit

extension UIView
{
    /// Returns text and UI direction based on current view settings
    var userInterfaceLayoutDirection: UIUserInterfaceLayoutDirection
    {
        if #available(iOS 9.0, *) {
            return UIView.userInterfaceLayoutDirection(for: self.semanticContentAttribute)
        } else {
            return UIApplication.shared.userInterfaceLayoutDirection
        }
    }
}