android - 下部のナビゲーション ドロワーでアイテムに間違ったアイコンが表示される

Question

ボトム ナビゲーション ドロワー通知に取り組んでいます。ボトム ナビゲーションの任意のアイテムをクリックして通知すると、間違ったアイテムにアイコンが表示されます。Item5 をクリックしてそこに通知を表示するメソッドを呼び出すと、Item1 に通知アイテムが表示されます。画面のスナップショットとともに、私のコードを以下に示します。私のフラグメントクラスも以下に示します。

MainActivity クラス:

 AHBottomNavigation bottomNavigation;
    Fragment selectedFragment = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        bottomNavigation = (AHBottomNavigation) findViewById(R.id.navigation);

        AHBottomNavigationItem item1 = new AHBottomNavigationItem(R.string.home,     R.drawable.home, R.color.colorAccent);
        AHBottomNavigationItem item2 = new AHBottomNavigationItem(R.string.menu,     R.drawable.menu, R.color.colorAccent);
        AHBottomNavigationItem item3 = new AHBottomNavigationItem(R.string.cart,     R.drawable.cart, R.color.colorAccent);
        AHBottomNavigationItem item4 = new AHBottomNavigationItem(R.string.orders,   R.drawable.orders, R.color.colorAccent);
        AHBottomNavigationItem item5 = new AHBottomNavigationItem(R.string.settings, R.drawable.setting, R.color.colorAccent);

        bottomNavigation.addItem(item1);
        bottomNavigation.addItem(item2);
        bottomNavigation.addItem(item3);
        bottomNavigation.addItem(item4);
        bottomNavigation.addItem(item5);

        bottomNavigation.setTitleState(AHBottomNavigation.TitleState.ALWAYS_SHOW);
        bottomNavigation.setAccentColor(Color.parseColor("#571e19"));

//        selectedFragment = ItemHomeFragment.newInstance(bottomNavigation);

        bottomNavigation.setOnTabSelectedListener(new AHBottomNavigation.OnTabSelectedListener() {
            @Override
            public boolean onTabSelected(int position, boolean wasSelected) {

                if (position == 0) {
                    selectedFragment = ItemHomeFragment.newInstance(bottomNavigation);
                } else if (position == 1) {
                    selectedFragment = ItemMenuFragment.newInstance(bottomNavigation);
                } else if (position == 2) {
                    selectedFragment = ItemCardFragment.newInstance(bottomNavigation);
                } else if (position == 3) {
                    selectedFragment = ItemOrdersFragment.newInstance(bottomNavigation);
                } else if (position == 4) {
                    selectedFragment = ItemSettingsFragment.newInstance(bottomNavigation);
                }

                android.app.FragmentManager fragmentManager = getFragmentManager();
                android.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
                fragmentTransaction.replace(R.id.frame_layout,selectedFragment);
                fragmentTransaction.commit();


                return true;

            }

        });

    }

    @Override
    protected void onStart() {
        super.onStart();
        android.app.FragmentManager fragmentManager = getFragmentManager();
        android.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        fragmentTransaction.replace(R.id.frame_layout, ItemHomeFragment.newInstance(bottomNavigation));
        fragmentTransaction.commit();

    }

私のフラグメントクラス:

public class ItemSettingsFragment extends Fragment {

    public static AHBottomNavigation bottomNavigation1;

    public static ItemSettingsFragment newInstance(AHBottomNavigation bottomNavigation) {
        ItemSettingsFragment fragment = new ItemSettingsFragment();
        // Initializing Navigation Drawer
        bottomNavigation1 = bottomNavigation;
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {


        View view = inflater.inflate(R.layout.fragment_settings, container, false);

        setNotification();
        return view;

    }


    // Calling this method in my 5 Item of Notification Drawer, but '1' is showing in first item of Bottom Noficiation drawer
    public static void setNotification(){
        bottomNavigation1.setNotification("1", 1);
    }

}

Item5 をクリックしても、通知ドロワー アイテムの Item2 に通知アイコンが表示されます。