Dynamic Menus in NavigationView

Question

I have this Layout:

Answer 1

We can dynamically add/remove menu items. Suppose we have this menu items `

<group android:checkableBehavior="single">
    <item
        android:id="@+id/nav_home"
        android:icon="@mipmap/home_icon_x48"
        android:title="Home" />
    <item
        android:id="@+id/nav_part_catalouge"
        android:icon="@mipmap/catalogue_icon_x48"
        android:title="Parts Catalogue" />
    <item
        android:id="@+id/nav_favourite"
        android:icon="@mipmap/my_favourate_x48"
        android:title="My-Favourite" />\
    <item
        android:id="@+id/nav_opencarrequest"
        android:icon="@mipmap/cart_request"
        android:title="Cart-Request" />

    <item
        android:id="@+id/nav_setting"
        android:icon="@mipmap/settings_x48"
        android:title="Settings" />
</group>


<item android:title="">
    <menu>
        <item
            android:id="@+id/nav_logout"
            android:icon="@mipmap/logout_icon_x48"
            android:title="Logout" />
    </menu>
</item>

`

In Activity we can add or remove menuitems based on our condition

protected void onCreate(Bundle savedInstanceState){
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_main);// your activity layout here
   NavigationView navigationView= (NavigationView) findViewById(R.id.nav_view); // navigation view which holds menu items
   navigationView.setNavigationItemSelectedListener(this);
   if(yourCondition){
          navigationView.getMenu().getItem(0).setVisible(false); //if you want to hide first item
          navigationView.getMenu().getItem(1).setVisible(true); // if you want to show second menu item should be visible
  }


}

Hope it will help.

Answer 2

Seems like kmi.getId() returns int(or long).

But Menu.add(int) adds menu with title from the given string resources, which is usually represented as R.string.something, and not for usual integer values.

Menu.add(CharSequence) does add menu with title of CharSequence, so you need to do some int-to-string conversion like menu.add(kmi.getId() + "");

Answer 3

You can re-inflate NavigationViewat runtime with 2 lines of code using public method inflateMenu. In this example i re-inflate with new_navigation_drawer_items.xml

navigationView.getMenu().clear(); //clear old inflated items.
navigationView.inflateMenu(R.menu.new_navigation_drawer_items); //inflate new items.

Answer 4

You can add menus dynamically by following steps :

Step1. Obtain menu object from Navigation View NavigationView.getMenu()

Step2. Add any item to the menu using Menu.add()