[android] Fixed search engine intialization, i.e. made it same as for other singletons

android/src/com/mapswithme/maps/MwmApplication.java

@@ -28,6 +28,7 @@ import com.mapswithme.maps.maplayer.traffic.TrafficManager;
 import com.mapswithme.maps.routing.RoutingController;
 import com.mapswithme.maps.scheduling.ConnectivityJobScheduler;
 import com.mapswithme.maps.scheduling.ConnectivityListener;
+import com.mapswithme.maps.search.SearchEngine;
 import com.mapswithme.maps.sound.TtsPlayer;
 import com.mapswithme.maps.ugc.UGC;
 import com.mapswithme.util.Config;
@@ -270,6 +271,7 @@ public class MwmApplication extends Application
     MapManager.nativeSubscribe(mStorageCallbacks);
 
     initNativeStrings();
+    SearchEngine.INSTANCE.initialize();
     BookmarkManager.loadBookmarks();
     TtsPlayer.INSTANCE.init(this);
     ThemeSwitcher.restart(false);

android/src/com/mapswithme/maps/search/SearchEngine.java

@@ -6,6 +6,7 @@ import android.support.annotation.Nullable;
 
 import com.mapswithme.maps.Framework;
 import com.mapswithme.maps.api.ParsedMwmRequest;
+import com.mapswithme.maps.base.Initializable;
 import com.mapswithme.maps.bookmarks.data.FeatureId;
 import com.mapswithme.util.Language;
 import com.mapswithme.util.Listeners;
@@ -15,7 +16,8 @@ import java.io.UnsupportedEncodingException;
 
 public enum SearchEngine implements NativeSearchListener,
                                     NativeMapSearchListener,
-                                    NativeBookingFilterListener
+                                    NativeBookingFilterListener,
+                                    Initializable
 {
   INSTANCE;
 
@@ -119,11 +121,6 @@ public enum SearchEngine implements NativeSearchListener,
     mHotelListeners.unregister(listener);
   }
 
-  SearchEngine()
-  {
-    nativeInit();
-  }
-
   private native void nativeInit();
 
   /**
@@ -218,6 +215,18 @@ public enum SearchEngine implements NativeSearchListener,
     nativeShowResult(index);
   }
 
+  @Override
+  public void initialize()
+  {
+    nativeInit();
+  }
+
+  @Override
+  public void destroy()
+  {
+    // Do nothing.
+  }
+
   /**
    * @param bytes utf-8 formatted bytes of query.
    */