@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setTheme(R.style.AppTheme); setContentView(R.layout.activity_main); mDrawerLayout = findViewById(R.id.drawer_layout); mNavigationView = findViewById(R.id.nav_view); mToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.navigation_drawer_open, R.string.navigation_drawer_close); mDrawerLayout.addDrawerListener(mToggle); getSupportActionBar().setDisplayHomeAsUpEnabled(true); getSupportActionBar().setHomeButtonEnabled(true); mNavigationView.setNavigationItemSelectedListener(this); mNavigationView.setItemIconTintList(null); mNavigationView.setItemTextColor(ColorStateList.valueOf(Color.BLACK)); mNavigationView.getHeaderView(0).findViewById(R.id.profile_image).setOnClickListener(this); } @Override public boolean onOptionsItemSelected(MenuItem item) { if (mToggle.onOptionsItemSelected(item)) { return true; } return super.onOptionsItemSelected(item); } @Override public void onPostCreate(@Nullable Bundle savedInstanceState, @Nullable PersistableBundle persistentState) { super.onPostCreate(savedInstanceState, persistentState); mToggle.syncState(); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); mToggle.onConfigurationChanged(newConfig); }