bottom_sheet

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    app:behavior_hideable="true"
    app:behavior_peekHeight="274dp"
    app:layout_behavior="android.support.design.widget.BottomSheetBehavior">

    <FrameLayout
        android:id="@+id/bottom_sheet_frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="gone">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginTop="28dp"
            android:background="@android:color/white"
            android:elevation="4dp"
            android:orientation="vertical"
            android:paddingTop="@dimen/activity_horizontal_margin">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical"
                android:paddingLeft="76dp"
                android:paddingStart="56dp">

                <TextView
                    style="@style/TextAppearance.AppCompat.Headline"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="Super Gym" />

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:paddingBottom="@dimen/activity_margin_half"
                    android:paddingTop="@dimen/activity_margin_half"
                    android:text="some description"
                    android:textColor="?attr/colorPrimary" />
            </LinearLayout>


            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal"
                android:padding="@dimen/activity_horizontal_margin">

                <ImageButton
                    android:layout_width="24dp"
                    android:layout_height="24dp"
                    android:alpha="0.36"
                    android:src="@drawable/ic_location" />

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="@dimen/activity_horizontal_margin"
                    android:layout_marginStart="@dimen/activity_horizontal_margin"
                    android:text="740, Valencia St, San Francisco, CA"
                    android:textColor="@android:color/primary_text_light" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal"
                android:padding="@dimen/activity_horizontal_margin">

                <ImageButton
                    android:layout_width="24dp"
                    android:layout_height="24dp"
                    android:alpha="0.36"
                    android:src="@drawable/ic_call" />

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="@dimen/activity_horizontal_margin"
                    android:layout_marginStart="@dimen/activity_horizontal_margin"
                    android:text="(415) 349-0942"
                    android:textColor="@android:color/primary_text_light" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal"
                android:padding="@dimen/activity_horizontal_margin">

                <ImageButton
                    android:layout_width="24dp"
                    android:layout_height="24dp"
                    android:alpha="0.36"
                    android:src="@drawable/ic_time" />

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="@dimen/activity_horizontal_margin"
                    android:layout_marginStart="@dimen/activity_horizontal_margin"
                    android:text="Wed, 10 AM - 9 PM"
                    android:textColor="@android:color/primary_text_light" />
            </LinearLayout>

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="320dp"
                android:background="@android:color/black">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:text="Your remaining content here"
                    android:textColor="@android:color/white" />
            </FrameLayout>
        </LinearLayout>

        <android.support.design.widget.FloatingActionButton
            android:id="@+id/action_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="end"
            android:layout_marginEnd="@dimen/activity_horizontal_margin"
            android:layout_marginRight="@dimen/activity_horizontal_margin"
            android:clickable="true"
            android:src="@drawable/ic_action_add"
            android:visibility="gone" />
    </FrameLayout>
</android.support.v4.widget.NestedScrollView>

BottomSheetFragment

public class BottomSheetFragment extends Fragment {

    private MapView mapView;
    private DatabaseReference mFruitRef = FirebaseDatabase.getInstance().getReference("Fruit");
    private boolean showFAB = true;
    private ChildEventListener childEventListener;

    @Override
    public void onResume() {
        super.onResume();
        mapView.onResume();
    }

    @Override
    public void onPause() {
        super.onPause();
        mapView.onPause();
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        mapView.onDestroy();
    }

    @Override
    public void onLowMemory() {
        super.onLowMemory();
        mapView.onLowMemory();
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.locations, container, false);
        FrameLayout bottom_sheet_frame = (FrameLayout) rootView.findViewById(R.id.bottom_sheet_frame);
        setupActionButton((ViewGroup) rootView);
        mapView = (MapView) rootView.findViewById(R.id.mapView);
        mapView.onCreate(savedInstanceState);

        try {
            MapsInitializer.initialize(getActivity().getApplicationContext());
        } catch (Exception e) {
            e.printStackTrace();
        }

        mapView.getMapAsync(new OnMapReadyCallback() {
            @Override
            public void onMapReady(GoogleMap googleMap) {
                googleMap.setOnMarkerClickListener(marker -> false);
                googleMap.getUiSettings().setZoomControlsEnabled(true);
                googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
                googleMap.getUiSettings().setMapToolbarEnabled(false);
                setupMarkers();
                addMarkersToMap(googleMap);

                //TODO: check status, refactor
                googleMap.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {
                    @Override
                    public boolean onMarkerClick(com.google.android.gms.maps.model.Marker marker) {
                        if(marker.getTitle().equals("Orange"))
                            Toast.makeText(getActivity(), marker.getTitle(), Toast.LENGTH_SHORT).show();// display toast
                        bottom_sheet_frame.setVisibility(View.VISIBLE);
                        return false;
                    }
                });

                //TODO: setMyLocationEnabled for fragment
                if (ContextCompat.checkSelfPermission(getActivity(),
                        android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
                        && ContextCompat.checkSelfPermission(getActivity(),
                        android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                    return;
                }
                googleMap.setMyLocationEnabled(true);
            }
        });
        return rootView;
    }

    private void setupMarkers() {
        Marker marker = new Marker("Orange", 47.000327, 28.867950, "some info");
        Marker marker2 = new Marker("Bananas", 47.045029, 28.861427, "some info");
        Marker marker3 = new Marker("Peaches", 47.024204, 28.889236, "some info");
        mFruitRef.push().setValue(marker);
        mFruitRef.push().setValue(marker2);
        mFruitRef.push().setValue(marker3);
    }

    /**
     * Setup animation floating button
     */
    private void setupActionButton(ViewGroup container) {
        FloatingActionButton actionButton = (FloatingActionButton) container.findViewById(R.id.action_button);
        CoordinatorLayout coordinatorLayout = (CoordinatorLayout) container.findViewById(R.id.locations);
        View bottomSheet = coordinatorLayout.findViewById(R.id.bottom_sheet);
        BottomSheetBehavior behavior = BottomSheetBehavior.from(bottomSheet);
        final Animation growAnimation = AnimationUtils.loadAnimation(getActivity(), R.anim.simple_grow);
        final Animation shrinkAnimation = AnimationUtils.loadAnimation(getActivity(), R.anim.simple_shrink);

        actionButton.setVisibility(View.VISIBLE);
        actionButton.startAnimation(growAnimation);

        actionButton.setOnClickListener(v -> {
            Log.d("some", "check Click");
        });

        shrinkAnimation.setAnimationListener(new Animation.AnimationListener() {
            @Override
            public void onAnimationStart(Animation animation) {
            }

            @Override
            public void onAnimationEnd(Animation animation) {
                actionButton.setVisibility(View.GONE);
            }

            @Override
            public void onAnimationRepeat(Animation animation) {
            }
        });

        behavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
            @Override
            public void onStateChanged(@NonNull View bottomSheet, int newState) {
                switch (newState) {
                    case BottomSheetBehavior.STATE_DRAGGING:
                        if (showFAB)
                            actionButton.startAnimation(shrinkAnimation);
                        break;
                    case BottomSheetBehavior.STATE_COLLAPSED:
                        showFAB = true;
                        actionButton.setVisibility(View.VISIBLE);
                        actionButton.startAnimation(growAnimation);
                        break;
                    case BottomSheetBehavior.STATE_EXPANDED:
                        showFAB = false;
                        break;
                }
            }

            @Override
            public void onSlide(View bottomSheet, float slideOffset) {
            }
        });
    }

    /**
     * Get marker information from Firebase Database and add it to map
     */
    private void addMarkersToMap(GoogleMap map) {
        childEventListener = mFruitRef.addChildEventListener(new ChildEventListener() {
            @Override
            public void onChildAdded(DataSnapshot dataSnapshot, String s) {
                Marker marker = dataSnapshot.getValue(Marker.class);
                String name = marker.getName();
                String description = marker.getDescription();
                double latitude = marker.getLatitude();
                double longitude = marker.getLongitude();
                LatLng location = new LatLng(latitude, longitude);
                map.addMarker(new MarkerOptions().title(name).snippet(description).position(location));
                map.moveCamera(CameraUpdateFactory.newLatLngZoom(location, 13));
            }

            @Override
            public void onChildChanged(DataSnapshot dataSnapshot, String s) {
            }

            @Override
            public void onChildRemoved(DataSnapshot dataSnapshot) {
            }

            @Override
            public void onChildMoved(DataSnapshot dataSnapshot, String s) {
            }

            @Override
            public void onCancelled(DatabaseError databaseError) {
            }
        });
    }
}

map_view

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <com.google.android.gms.maps.MapView
        android:id="@+id/mapView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</RelativeLayout>