[android] Added scroll reset for main menu bottom sheet when it's closed

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

@@ -2670,7 +2670,6 @@ public class MwmActivity extends BaseMwmFragmentActivity
       if (getActivity().closeSidePanel())
         return;
 
-      Toast.makeText(getActivity(), "Open bottom sheet menu!", Toast.LENGTH_SHORT).show();
       getActivity().mMainMenuController.open();
     }
   }

android/src/com/mapswithme/maps/widget/menu/BottomSheetMenuController.java

@@ -41,6 +41,7 @@ public class BottomSheetMenuController implements MenuController
 
       if (BottomSheetMenuUtils.isHiddenState(state))
       {
+        mMenuRenderer.onHide();
         mStateObserver.onMenuClosed();
         return;
       }
@@ -90,8 +91,6 @@ public class BottomSheetMenuController implements MenuController
     View sheet = view.findViewById(mSheetResId);
     Objects.requireNonNull(sheet);
     mSheetBehavior = BottomSheetBehavior.from(sheet);
-    // FIXME: bottom sheet should be hidden by default without this call.
-    mSheetBehavior.setState(BottomSheetBehavior.STATE_HIDDEN);
     mSheetBehavior.setBottomSheetCallback(mSheetCallback);
     GestureDetectorCompat gestureDetector = new GestureDetectorCompat(
         view.getContext(), new BottomSheetMenuGestureListener(mSheetBehavior));

android/src/com/mapswithme/maps/widget/menu/MainMenuRenderer.java

@@ -5,6 +5,7 @@ import android.widget.TextView;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.core.widget.NestedScrollView;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 import com.mapswithme.maps.R;
@@ -30,6 +31,9 @@ public class MainMenuRenderer implements MenuRenderer
   @SuppressWarnings("NullableProblems")
   @NonNull
   private TextView mDownloadMapsCounter;
+  @SuppressWarnings("NullableProblems")
+  @NonNull
+  private NestedScrollView mScrollView;
 
   MainMenuRenderer(@NonNull MainMenuOptionListener listener)
   {
@@ -55,6 +59,7 @@ public class MainMenuRenderer implements MenuRenderer
   public void initialize(@Nullable View view)
   {
     Objects.requireNonNull(view);
+    mScrollView = (NestedScrollView) view;
     initLayersRecycler(view);
     TextView addPlace = view.findViewById(R.id.add_place);
     addPlace.setOnClickListener(v -> mListener.onAddPlaceOptionSelected());
@@ -95,7 +100,13 @@ public class MainMenuRenderer implements MenuRenderer
   @Override
   public void destroy()
   {
-    // TODO: Implement.
+    // Do nothing by default.
+  }
+
+  @Override
+  public void onHide()
+  {
+    mScrollView.scrollTo(0, 0);
   }
 
   private abstract class DefaultClickListener implements OnItemClickListener<BottomSheetItem>

android/src/com/mapswithme/maps/widget/menu/MenuRenderer.java

@@ -2,9 +2,10 @@ package com.mapswithme.maps.widget.menu;
 
 import android.view.View;
 
+import com.mapswithme.maps.base.Hideable;
 import com.mapswithme.maps.base.Initializable;
 
-public interface MenuRenderer extends Initializable<View>
+public interface MenuRenderer extends Initializable<View>, Hideable
 {
   void render();
 }