Add spoken locale

MapboxDirections/MBDirections.swift

@@ -173,6 +173,9 @@ open class Directions: NSObject {
                     route.accessToken = self.accessToken
                     route.apiEndpoint = self.apiEndpoint
                     route.routeIdentifier = json["uuid"] as? String
+                    if let vLocale = json["voiceLocale"] as? String {
+                        route.spokenLocale = Locale(identifier: vLocale)
+                    }
                 }
             }
             completionHandler(response.0, response.1, nil)

MapboxDirections/MBRoute.swift

@@ -70,6 +70,8 @@ open class Route: NSObject, NSSecureCoding {
         routeOptions = options
 
         routeIdentifier = decoder.decodeObject(of: NSString.self, forKey: "routeIdentifier") as String?
+
+        spokenLocale = decoder.decodeObject(of: NSLocale.self, forKey: "spokenLocale") as Locale?
     }
 
     open static var supportsSecureCoding = true
@@ -86,6 +88,7 @@ open class Route: NSObject, NSSecureCoding {
         coder.encode(expectedTravelTime, forKey: "expectedTravelTime")
         coder.encode(routeOptions, forKey: "routeOptions")
         coder.encode(routeIdentifier, forKey: "routeIdentifier")
+        coder.encode(spokenLocale, forKey: "spokenLocale")
     }
 
     // MARK: Getting the Route Geometry
@@ -194,6 +197,11 @@ open class Route: NSObject, NSSecureCoding {
      Each route produced by a single call to `Directions.calculate(_:completionHandler:)` has the same route identifier.
      */
     @objc open var routeIdentifier: String?
+
+    /**
+     The locale to use for spoken instructions.
+     */
+    @objc open var spokenLocale: Locale?
 }
 
 // MARK: Support for Directions API v4

MapboxDirectionsTests/V5Tests.swift

@@ -58,6 +58,7 @@ class V5Tests: XCTestCase {
         XCTAssertEqual(route!.accessToken, BogusToken)
         XCTAssertEqual(route!.apiEndpoint, URL(string: "https://api.mapbox.com"))
         XCTAssertEqual(route!.routeIdentifier, "cj725hpi30yp2ztm2ehbcipmh")
+        XCTAssertEqual(route!.spokenLocale!.description, "en-US")
 
 
         // confirming actual decoded values is important because the Directions API