Hide a Navigation Drawer Menu Item - Android

Question

I have a navigation drawer. When an event is called, I want to hide one of my navigation menu item for user. How can I do that?

protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.sliding_menu);      if (android.os.Build.VERSION.SDK_INT > 9) {         StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();         StrictMode.setThreadPolicy(policy);     }     mTitle = mDrawerTitle = getTitle();      // load slide menu items     navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);      // nav drawer icons from resources     navMenuIcons = getResources()             .obtainTypedArray(R.array.nav_drawer_icons);      mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout1);     mDrawerList = (ListView) findViewById(R.id.list_slidermenu1);      navDrawerItems = new ArrayList<NavDrawerItem>();      // adding nav drawer items to array     // Home     navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));     // Profil     navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));     // Prospek     navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));     // Announcement     navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1), true,             cariTotal("http://192.168.0.23/api/android/announcement/").toString()));     // Logout     navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));      // Recycle the typed array     navMenuIcons.recycle();     //set event     mDrawerList.setOnItemClickListener(new SlideMenuClickListener());     // setting the nav drawer list adapter     adapter = new NavDrawerListAdapter(getApplicationContext(),             navDrawerItems);     mDrawerList.setAdapter(adapter);     // enabling action bar app icon and behaving it as toggle button     getSupportActionBar().setDisplayHomeAsUpEnabled(true);     getSupportActionBar().setHomeButtonEnabled(true);      mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,             R.string.app_name,             R.string.app_name     ){         public void onDrawerClosed(View view) {             getSupportActionBar().setTitle(mTitle);             // calling onPrepareOptionsMenu() to show action bar icons             invalidateOptionsMenu();         }          public void onDrawerOpened(View drawerView) {             getSupportActionBar().setTitle(mDrawerTitle);             //mDrawerList.bringToFront();             //mDrawerLayout.requestLayout();             // calling onPrepareOptionsMenu() to hide action bar icons             invalidateOptionsMenu();         }     };     mDrawerLayout.setDrawerListener(mDrawerToggle);      if (savedInstanceState == null) {         // on first time display view for first nav item         displayView(0);     } } private void displayView(int position) {     // update the main content by replacing fragments     android.app.Fragment fragment = null;     switch (position) {         case 0:             fragment = new HomeFragment();             break;         case 1:             fragment = new ProfilFragment();             break;         case 2:             fragment = new ProspekFragment();             break;         case 3:             fragment = new AnnouncementFragment();             break;         case 4:             Logout();             break;         default:             break;     }      if (fragment != null) {         android.app.FragmentManager fragmentManager = getFragmentManager();         fragmentManager.beginTransaction()                 .replace(R.id.container, fragment).commit();          // update selected item and title, then close the drawer         mDrawerList.setItemChecked(position, true);         mDrawerList.setSelection(position);         setTitle(navMenuTitles[position]);         mDrawerLayout.closeDrawer(mDrawerList);     } else {         // error in creating fragment         Log.e("SlidingMenu", "Error in creating fragment");     } } 

I want to hide my navigation drawer menu item at index 2. How to do that?

UPDATE I have 5 menu items in my navigation drawer, I want to hide one of them when some event is called.

Answer 1

NavigationView navigationView; @Override protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.activity_main);     hideItem();   }   private void hideItem()    {      navigationView = (NavigationView) findViewById(R.id.nav_view);      Menu nav_Menu = navigationView.getMenu();      nav_Menu.findItem(R.id.nav_settings).setVisible(false);    } 

Answer 2

This will work as setInvisibility(GONE):

 Menu nav_Menu = navigationView.getMenu();  nav_Menu.findItem(R.id.nav_profile).setVisible(false);  nav_Menu.findItem(R.id.menu_login).setVisible(true);  nav_Menu.findItem(R.id.menu_logout).setVisible(false);  nav_Menu.findItem(R.id.menu_regsitration).setVisible(true);