android-titlebar

I need resize this part size to full display. How can i do this? My adapter: String[] navigations = getResources().getStringArray(R.array.actionBar); ArrayAdapter<String> adapter = new ArrayAdapter<String>( getBaseContext(), R.layout.custom_spinner_title_bar, android.R.id.text1, navigations); adapter.setDropDownViewResource(R.layout.custom_spinner_title_bar); actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST); actionBar.setListNavigationCallbacks(adapter, navigationListener); custom_spinner_title_bar.xml: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http:/

I am aware that there are two methods to setting a title in an Android Activity . Assuming I already have the following code... @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.my_activity); ... Toolbar toolbar = (Toolbar) findViewById(R.id.my_toolbar); setSupportActionBar(toolbar); ...I can use either this... getSupportActionBar().setTitle("My title"); ...or this... toolbar.setTitle("My title"); ...to set my title. My question is, which is the better practice ? Androider If you call setSupportActionBar(Toolbar) , then