@Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.preferences_button: Intent preferencesIntent = new Intent(this, PreferencesActivity.class); startActivity(preferencesIntent); return true; case R.id.help_button: Intent helpIntent = new Intent(this, HelpActivity.class); startActivity(helpIntent); return true; case R.id.credits_button: Intent creditsIntent = new Intent(this, CreditsActivity.class); startActivity(creditsIntent); return true; case R.id.donate_button: billing.preDonation(this); default: return super.onOptionsItemSelected(item); } }