Arrow icon instead of hamburger icon on backstackchange

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Android

I have the below code which gets executed when I am adding or removing fragments to MainActivity.

getSupportFragmentManager().addOnBackStackChangedListener(
            new FragmentManager.OnBackStackChangedListener() {
                public void onBackStackChanged() {
                   if(getSupportFragmentManager().getBackStackEntryCount() > 1) {
                        getSupportActionBar().setDisplayShowHomeEnabled(true);
                        mDrawerToggle.setDrawerIndicatorEnabled(false);
                        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
                        mDrawerToggle.syncState();
                    }
                    else
                    {
                        getSupportActionBar().setDisplayShowHomeEnabled(true);
                        getSupportActionBar().setDisplayHomeAsUpEnabled(false);
                        mDrawerToggle.setDrawerIndicatorEnabled(true);
                        mDrawerToggle.syncState();
                    }
                }
            });

Everything works good except I run the below code to go home fragment. After I execute the below code, It still shows Arrow Icon instead of hamburger icon.

for(int i = 1; i < fragmentManager.getBackStackEntryCount(); ++i) {
            fragmentManager.popBackStack();
        }

What I have tried:

I even tried to remove all fragments and add the home fragment again to stack. Still the same issue.