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My goal is this: in place of these items that come by default in Navigation Drawer I would like to put a series of lists that will change as I create, delete and edit these lists.
I tried to create an Adapter with an Array of Strings just to test (my real goal is to use a list of Objects). But it did not work anyway.
Follow the code:
MainActivity.java
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private List<ListaDeCompras> listasDeCompras = new ArrayList<ListaDeCompras>();
private ListaDeCompras listaDeComprasAtual;
private ListView listaDeComprasView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open,
R.string.navigation_drawer_open);
drawer.setDrawerListener(toggle);
toggle.syncState();
drawer.openDrawer(GravityCompat.START);
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
String[] listas = {"Lista 1", "Lista 2", "Lista 3"};
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, listas);
listaDeComprasView = (ListView) findViewById(R.id.listas_de_compras);
listaDeComprasView.setAdapter(adapter);
}
}
activity_main_drawer.xml
<?xml version="1.0" encoding="utf-8"?>
<group android:checkableBehavior="single">
<item
android:id="@+id/nova_lista"
android:title="Nova Lista" />
</group>
<item android:title="Listas de Compras">
<menu>
<ListView
android:id="@+id/listas_de_compras"
/>
</menu>
</item>