bottomNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() { @Override public boolean onNavigationItemSelected(@NonNull MenuItem item) { switch (item.getItemId()) { case R.id.nav_home: myWeb.loadUrl(“https://test.net/”); return true; case R.id.nav_search: myWeb.loadUrl(“https://test.net/”); return true; case R.id.nav_profile: myWeb.loadUrl(“https://test.net/”); return true; default: return false; } } }); i have webview app.. I am sure that all identifiers ( R.id.nav_home:, R.id.nav_search:R.id.nav_profile: error: constant expression required case R.id.nav_home: ^ ) […]