[android] Add assertion into nativeGetMode()

android/app/src/main/java/app/organicmaps/MwmActivity.java

@@ -1054,7 +1054,7 @@ public class MwmActivity extends BaseMwmFragmentActivity
     IsolinesManager.from(getApplicationContext()).attach(this::onIsolinesStateChanged);
     LocationState.nativeSetListener(this);
     LocationHelper.from(this).addListener(this);
-    onMyPositionModeChanged(LocationState.nativeGetMode());
+    onMyPositionModeChanged(LocationState.getMode(this));
     mSearchController.attach(this);
     if (!Config.isScreenSleepEnabled())
       Utils.keepScreenOn(true, getWindow());
@@ -1778,7 +1778,7 @@ public class MwmActivity extends BaseMwmFragmentActivity
    */
   private void autostartLocation()
   {
-    if (LocationState.nativeGetMode() == LocationState.NOT_FOLLOW_NO_POSITION)
+    if (LocationState.getMode(this) == LocationState.NOT_FOLLOW_NO_POSITION)
     {
       Logger.i(LOCATION_TAG, "Location updates are stopped by the user manually.");
       LocationState.nativeOnLocationError(LocationState.ERROR_GPS_OFF);

android/app/src/main/java/app/organicmaps/MwmApplication.java

@@ -233,10 +233,12 @@ public class MwmApplication extends Application implements Application.ActivityL
     TrafficManager.INSTANCE.initialize(null);
     SubwayManager.from(this).initialize(null);
     IsolinesManager.from(this).initialize(null);
-    ProcessLifecycleOwner.get().getLifecycle().addObserver(mProcessLifecycleObserver);
 
     Logger.i(TAG, "Framework initialized");
     mFrameworkInitialized = true;
+
+    ProcessLifecycleOwner.get().getLifecycle().addObserver(mProcessLifecycleObserver);
+
     return true;
   }
 

android/app/src/main/java/app/organicmaps/location/LocationHelper.java

@@ -75,7 +75,7 @@ public class LocationHelper implements BaseLocationProvider.Listener
   @Nullable
   public MapObject getMyPosition()
   {
-    if (!LocationState.isTurnedOn())
+    if (!LocationState.isTurnedOn(mContext))
     {
       mMyPosition = null;
       return null;
@@ -263,7 +263,7 @@ public class LocationHelper implements BaseLocationProvider.Listener
       return;
     }
 
-    int mode = LocationState.nativeGetMode();
+    int mode = LocationState.getMode(mContext);
     switch (mode)
     {
       case LocationState.FOLLOW:
@@ -348,7 +348,7 @@ public class LocationHelper implements BaseLocationProvider.Listener
   {
     if (isActive())
       return;
-    else if (LocationState.nativeGetMode() == LocationState.NOT_FOLLOW_NO_POSITION)
+    else if (LocationState.getMode(mContext) == LocationState.NOT_FOLLOW_NO_POSITION)
     {
       Logger.i(TAG, "Location updates are stopped by the user manually.");
       return;

android/app/src/main/java/app/organicmaps/location/LocationState.java

@@ -1,8 +1,12 @@
 package app.organicmaps.location;
 
+import android.content.Context;
+
 import androidx.annotation.IntDef;
 import androidx.annotation.NonNull;
 
+import app.organicmaps.MwmApplication;
+
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 
@@ -41,7 +45,7 @@ public final class LocationState
 
   public static native void nativeSwitchToNextMode();
   @Value
-  public static native int nativeGetMode();
+  private static native int nativeGetMode();
 
   public static native void nativeSetListener(@NonNull ModeChangeListener listener);
   public static native void nativeRemoveListener();
@@ -56,12 +60,20 @@ public final class LocationState
 
   private LocationState() {}
 
+  @Value
+  static public int getMode(@NonNull Context context)
+  {
+    if (!MwmApplication.from(context).arePlatformAndCoreInitialized())
+      throw new AssertionError("!arePlatformAndCoreInitialized");
+    return nativeGetMode();
+  }
+
   /**
    * Checks if location state on the map is active (so its not turned off or pending).
    */
-  static boolean isTurnedOn()
+  static boolean isTurnedOn(@NonNull Context context)
   {
-    return hasLocation(nativeGetMode());
+    return hasLocation(getMode(context));
   }
 
   static boolean hasLocation(int mode)
@@ -69,6 +81,7 @@ public final class LocationState
     return (mode > NOT_FOLLOW_NO_POSITION);
   }
 
+
   static String nameOf(@Value int mode)
   {
     switch (mode)

android/app/src/main/java/app/organicmaps/widget/menu/MyPositionButton.java

@@ -36,7 +36,7 @@ public class MyPositionButton
     mButton.setOnClickListener(listener);
     mIcons.clear();
     mFollowPaddingShift = (int) (FOLLOW_SHIFT * button.getResources().getDisplayMetrics().density);
-    update(LocationState.nativeGetMode());
+    update(LocationState.getMode(mButton.getContext()));
   }
 
   public void update(int mode)