Set no item pre-selected in Bottom Navigation view

Question

I'm adding the new Bottom Navigation View from the material design library to a project, and I would like to have no pre selected item by default.

For now first item is selected by default.

I have used

mBottomNavigation.getMenu().getItem(0).setChecked(false);

but when doing it in for loop for all the menu item last item is selected again by default.

Is there a way we can achieve this?

Answer 1

Not sure about the proper way to achieve this but a work around will help-

1. setCheckable(false) for first item

   navigation.getMenu().getItem(0).setCheckable(false);

2. item.setCheckable(true) inside onNavigationItemSelected()

   public boolean onNavigationItemSelected(MenuItem item) {
   
   switch (item.getItemId()) {
       case R.id.navigation_home:
           item.setCheckable(true);
           mTextMessage.setText(R.string.title_home);
           return true;
     }
     return false;
   }