Adding an empty variant to the alternatives list template on CarPlay (#4374)

* Adding empty variant to the alternatives list template

* Ran extract_localizable script

Author: matthewkertis

Example/en.lproj/Localizable.strings

@@ -28,3 +28,18 @@
 /* Title of alert confirming waypoint removal */
 "REMOVE_WAYPOINT_CONFIRM_TITLE" = "Remove Waypoint?";
 
+/* No comment provided by engineer. */
+"Start Cycling" = "Start Cycling";
+
+/* No comment provided by engineer. */
+"Start Driving" = "Start Driving";
+
+/* No comment provided by engineer. */
+"Start Driving Avoiding Traffic" = "Start Driving Avoiding Traffic";
+
+/* No comment provided by engineer. */
+"Start Navigation" = "Start Navigation";
+
+/* No comment provided by engineer. */
+"Start Walking" = "Start Walking";
+

Sources/MapboxNavigation/CarPlayNavigationViewController.swift

@@ -177,6 +177,16 @@ open class CarPlayNavigationViewController: UIViewController, BuildingHighlighti
         let template = CPListTemplate(title: alternativesTitle,
                                       sections: variants)
         template.delegate = self
+        
+        if #available(iOS 14.0, *) {
+            let alternativesEmptyVariantsSubtitle = NSLocalizedString("CARPLAY_ALTERNATIVES_EMPTY_SUBTITLE",
+                                              bundle: .mapboxNavigation,
+                                              value: "No alternative routes found.",
+                                              comment: "Subtitle for the alternative list template empty variants")
+            
+            template.emptyViewSubtitleVariants = [alternativesEmptyVariantsSubtitle]
+        }
+        
         return template
     }
 

Sources/MapboxNavigation/Resources/en.lproj/Localizable.strings

@@ -1,9 +1,15 @@
 /* Combined alternatives selection notes about duration (first slot position) and distance (second slot position) delta. */
 "ALTERNATIVE_NOTES" = "%1$@ / %2$@";
 
+/* Title of the back button. */
+"BACK" = "BACK";
+
 /* Title for alternatives selection list button */
 "CARPLAY_ALTERNATIVES" = "Alternatives";
 
+/* Subtitle for the alternative list template empty variants */
+"CARPLAY_ALTERNATIVES_EMPTY_SUBTITLE" = "No alternative routes found.";
+
 /* Title on arrival action sheet */
 "CARPLAY_ARRIVED" = "You have arrived";
 
@@ -40,6 +46,9 @@
 /* Title for overview button in CPTripPreviewTextConfiguration */
 "CARPLAY_OVERVIEW" = "Overview";
 
+/* Title for trip preview back button */
+"CARPLAY_PREVIEW_BACK" = "BACK";
+
 /* Title for rating template in CarPlay */
 "CARPLAY_RATE_RIDE" = "Rate your ride";
 
@@ -265,5 +274,3 @@
 /* Format for displaying start and endpoint for leg; 1 = source ; 2 = destination */
 "WAYPOINT_SOURCE_DESTINATION_FORMAT" = "%1$@ and %2$@";
 
-/* Button title for back button in preview . */
-"BACK" = "Back";