dynamic adding item to NavigationView in Android

Question

I want to build NavigationDrawer with the possibility of adding new items (such as yahoo weather App with adding new cities). I have working NavigationDrawer with NavigationView, in menu I have permanent fields:

   <group         android:id="@+id/group"         android:checkableBehavior="single">         <item             android:checked="false"             android:id="@+id/item1"             android:icon="@drawable/ic_inbox_black_24dp"             android:title="Item1" />         <item             android:checked="false"             android:id="@+id/Item2"             android:icon="@drawable/ic_inbox_black_24dp"             android:title="Item2"             />     </group> 

I'm trying to add new Item this method:

 public boolean addNewItem(String itemName){         Menu menu = navigationView.getMenu();         menu.add(R.id.group,Menu.NONE,Menu.NONE,itemName);         return true;  } 

And I'm getting not exactly what I want:

Does anyone have an idea how to solve this problem? Or why is this happening? I do not know where and how one can hold information about the added elements. Any ideas?

Answer 1

To add the Item programmatically, we can get a Menu object using getMenu() method of NavigationView and then we can add Items into the navigation drawer using that Menu object.

final Menu menu = navigationView.getMenu(); for (int i = 1; i <= 3; i++) {    menu.add("Runtime item "+ i); } 

Using SubMenu, we can add a subsection and Items into it.

// adding a section and items into it final SubMenu subMenu = menu.addSubMenu("SubMenu Title"); for (int i = 1; i <= 2; i++) {    subMenu.add("SubMenu Item " + i); } 

for more details Check TechnoTalkative.

EDIT: If you want to interact with the menu, use
menu.add(0, itemId, 0, title); and then

 public boolean onNavigationItemSelected(MenuItem item) {         // Handle navigation view item clicks here.         int id = item.getItemId(); 

id will give you assigned itemId