Menú del cajón secundario

He cambiado a la Biblioteca oficial de diseño de Google. Ahora, quiero usar un menú secundario con un divisor como este:

• ¿Es este un uso correcto de Android Fragments y NavigationDrawer?
• Salir de la aplicación cuando presione el botón Atrás en actividad con múltiples fragmentos en el Gaveta de navegación
• Cambiar el título del encabezado de NavigationView
• Desactivar la hamburguesa para animar las flechas
• Hacer clic en icono de hamburguesa en la barra de herramientas no abre Cajón de navegación

Pero como Android está usando el menú Inflater no tengo ni idea de qué hacer ahora. Puedo agregar un segundo grupo, pero entonces los artículos tienen el mismo tamaño y no hay divisor.

Drawer.xml:

<?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"> <group android:checkableBehavior="single"> <item android:id="@+id/overview" android:checked="true" android:icon="@drawable/ic_action_dashboard" android:title="@string/drawer_overview" /> <item android:id="@+id/social_evening" android:checked="false" android:icon="@drawable/ic_action_brightness_3" android:title="@string/drawer_social_evening" /> <item android:id="@+id/scouting_games" android:checked="false" android:icon="@drawable/ic_action_landscape" android:title="@string/drawer_scouting_games" /> <item android:id="@+id/olympics" android:checked="false" android:icon="@drawable/ic_action_stars" android:title="@string/drawer_olympics" /> <item android:id="@+id/quizzes" android:checked="false" android:icon="@drawable/ic_action_school" android:title="@string/drawer_quizzes" /> </group> </menu> 

MainActivity.java:

 package net.sutomaji.freizeitspiele; import android.os.Bundle; import android.support.design.widget.NavigationView; import android.support.v4.app.FragmentTransaction; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBarDrawerToggle; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.Toast; /** * Created by Tom Schneider on 18.06.15 */ public class MainActivity extends AppCompatActivity { //Defining Variables private Toolbar toolbar; private NavigationView navigationView; private DrawerLayout drawerLayout; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Initializing Toolbar and setting it as the actionbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); //Initializing NavigationView navigationView = (NavigationView) findViewById(R.id.navigation_view); //Setting Navigation View Item Selected Listener to handle the item click of the navigation menu navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() { // This method will trigger on item Click of navigation menu @Override public boolean onNavigationItemSelected(MenuItem menuItem) { //Checking if the item is in checked state or not, if not make it in checked state if(menuItem.isChecked()) menuItem.setChecked(false); else menuItem.setChecked(true);Q //Closing drawer on item click drawerLayout.closeDrawers(); //Check to see which item was being clicked and perform appropriate action switch (menuItem.getItemId()){ //Replacing the main content with ContentFragment Which is our Inbox View; case R.id.overview: Toast.makeText(getApplicationContext(), "Overview Selected", Toast.LENGTH_SHORT).show(); ContentFragment fragment = new ContentFragment(); FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction(); fragmentTransaction.replace(R.id.frame,fragment); fragmentTransaction.commit(); return true; // For rest of the options we just show a toast on click case R.id.social_evening: Toast.makeText(getApplicationContext(),"SE Selected",Toast.LENGTH_SHORT).show(); return true; case R.id.scouting_games: Toast.makeText(getApplicationContext(),"SG Selected",Toast.LENGTH_SHORT).show(); return true; case R.id.olympics: Toast.makeText(getApplicationContext(),"OL Selected",Toast.LENGTH_SHORT).show(); return true; case R.id.quizzes: Toast.makeText(getApplicationContext(),"QZ Selected",Toast.LENGTH_SHORT).show(); return true; default: Toast.makeText(getApplicationContext(),"Somethings Wrong",Toast.LENGTH_SHORT).show(); return true; } } }); // Initializing Drawer Layout and ActionBarToggle drawerLayout = (DrawerLayout) findViewById(R.id.drawer); ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle(this,drawerLayout,toolbar,R.string.openDrawer, R.string.closeDrawer){ @Override public void onDrawerClosed(View drawerView) { // Code here will be triggered once the drawer closes as we dont want anything to happen so we leave this blank super.onDrawerClosed(drawerView); } @Override public void onDrawerOpened(View drawerView) { // Code here will be triggered once the drawer open as we dont want anything to happen so we leave this blank super.onDrawerOpened(drawerView); } }; //Setting the actionbarToggle to drawer layout drawerLayout.setDrawerListener(actionBarDrawerToggle); //calling sync state is necessay or else your hamburger icon wont show up actionBarDrawerToggle.syncState(); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } } 

Entonces, ¿cómo puedo crear un menú como este, o cómo puedo agregar divisores (con encabezados de categoría) a mi cajón de navegación?

 <menu xmlns:android="http://schemas.android.com/apk/res/android"> <group android:id="@+id/group1" android:checkableBehavior="single" id> //items of group1 </group> <group android:id="@+id/group2" android:checkableBehavior="single" id> //items of group2 </group> 

 <?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"> <group android:checkableBehavior="single"> <item android:id="@+id/navigation_item_attachment" android:checked="true" android:icon="@drawable/ic_attachment" android:title="@string/nav_item_attachment" /> <item android:id="@+id/navigation_item_images" android:icon="@drawable/ic_image" android:title="@string/nav_item_images" /> <item android:id="@+id/navigation_item_location" android:icon="@drawable/ic_place" android:title="@string/nav_item_location" /> </group> <item android:title="@string/nav_sub_menu"> <menu> <item android:icon="@drawable/ic_emoticon" android:title="@string/nav_sub_menu_item01" /> <item android:icon="@drawable/ic_emoticon" android:title="@string/nav_sub_menu_item02" /> </menu> </item> </menu> 

 <?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"> <group android:checkableBehavior="single"> <item android:id="@+id/Home" android:checked="false" android:icon="@drawable/ic_home" android:title="@string/homestr" /> <item android:id="@+id/myacc" android:checked="false" android:icon="@drawable/ic_account" android:title="@string/myaccstr" /> <item android:id="@+id/popular" android:checked="false" android:icon="@drawable/ic_star" android:title="@string/Popularstr" /> <item android:id="@+id/newsit" android:checked="false" android:icon="@drawable/ic_news" android:title="@string/newsstr" /> <item android:title="@string/gn"> <menu> <item android:id="@+id/settings" android:checked="false" android:icon="@drawable/ic_setting" android:title="@string/action_settings" /> <item android:id="@+id/help" android:checked="false" android:icon="@drawable/ic_help" android:title="@string/helpstr" /> </menu> </item> </group> </menu> 

 <android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/drawer_layout" android:layout_width="match_parent" android:layout_height="match_parent"> <FrameLayout android:id="@+id/content_frame" android:layout_width="match_parent" android:layout_height="match_parent" /> <!-- YOUR DRAWER --> <LinearLayout android:id="@+id/drawer_view" android:layout_width="240dp" android:layout_height="match_parent" android:orientation="vertical" android:layout_gravity="start"> <!-- Use any Views you like --> <ListView android:id="@+id/left_drawer" android:layout_width="match_parent" android:layout_height="match_parent" android:choiceMode="singleChoice" android:divider="@android:color/transparent" android:dividerHeight="0dp" android:background="#ffffff"/> </LinearLayout> </android.support.v4.widget.DrawerLayout> 

 android:divider="#FFFFFF" android:dividerHeight="1dp"