fix issue with back on route prompt

OsmAnd/src/net/osmand/plus/routing/RoutingHelper.java

@@ -82,9 +82,6 @@ public class RoutingHelper {
 
 	private RouteCalculationProgressCallback progressRoute;
 
-	private boolean announceBackOnRoute = false;
-
-
 //	private ProgressBar progress;
 //	private Handler progressHandler;
 
@@ -322,7 +319,6 @@ public class RoutingHelper {
 					if(dist > 350) {
 						if (isFollowingMode) {
 							voiceRouter.announceOffRoute(dist);
-							announceBackOnRoute = true;
 						}
 					}
 				}
@@ -373,9 +369,8 @@ public class RoutingHelper {
 				if(!thread.isParamsChanged()) {
 					thread.stopCalculation();
 				}
-				if (announceBackOnRoute && isFollowingMode){
+				if (isFollowingMode){
 					voiceRouter.announceBackOnRoute();
-					announceBackOnRoute = false;
 				}
 			}
 		}

OsmAnd/src/net/osmand/plus/routing/VoiceRouter.java

@@ -48,6 +48,7 @@ public class VoiceRouter {
 	private long waitAnnouncedSpeedLimit = 0;
 	private long waitAnnouncedOffRoute = 0;
 	private boolean suppressDest = false;
+	private boolean announceBackOnRoute = false;
 
 	// private long lastTimeRouteRecalcAnnounced = 0;
 	
@@ -220,6 +221,7 @@ public class VoiceRouter {
 			if (p != null) {
 				notifyOnVoiceMessage();
 				p.offRoute(dist).play();
+				announceBackOnRoute = true;
 			}
 			if(waitAnnouncedOffRoute == 0) {
 				waitAnnouncedOffRoute = 60000;	
@@ -232,10 +234,13 @@ public class VoiceRouter {
 
 	public void announceBackOnRoute() {
 		CommandBuilder p = getNewCommandPlayerToPlay();
+		if (announceBackOnRoute == true) {
 			if (p != null) {
 				notifyOnVoiceMessage();
 				p.backOnRoute().play();
 			}
+			announceBackOnRoute = false;
+		}
 	}
 
 	public void approachWaypoint(Location location, List<LocationPointWrapper> points){
@@ -426,6 +431,7 @@ public class VoiceRouter {
 			currentStatus = STATUS_UNKNOWN;
 			suppressDest = false;
 			playedAndArriveAtTarget = false;
+			announceBackOnRoute = false;
 			if (playGoAheadDist != -1) {
 				playGoAheadDist = 0;
 			}