Swift "String" Extension to convert string values in Bool. You can add any value in "Case" for true and false and it will convert it to Bool.

StringToBool-Swift-Extension.swift

extension String {
    func convertToBool() -> Bool? {
        switch self {
        case "true", "1", "yes":
            return true
        case "false", "0", "no":
            return false
        default:
            return nil
        }
    }
}

Thanks for this. I was having problem converting such string values from database to Bool in Swift. It helped me a lot.