How to Set selected item in BottomNavigationView

Question

I am trying to set default item on activity created but it isn\'t working? This is my code:

protected void onCreate(Bundle savedInstanceState) {
    super.o         


        

Answer 1

FYI: for fragment, onCreateView

BottomNavigationView mBottomNavigationView = getActivity().findViewById(R.id.bottomNavigationView);

mBottomNavigationView.setSelectedItemId(R.id.your_item);

Answer 2

Kotlin extension version of Abshishek's answer:

internal fun BottomNavigationView.checkItem(actionId: Int) {
    menu.findItem(actionId)?.isChecked = true
}

// use 
bottom_navigation.checkItem(R.id.navigation_home)

This does not trigger OnNavigationItemSelectedListener.

Answer 3

You can use:

    navigationView?.menu?.findItem(drawableMenuItem.id)?.isChecked = true

and it will not fire OnNavigationItemSelectedListener events.

Answer 4

You can also set selection in BottomNavigatioView using index like this :

public void selectBottomNavigationOption(int index) {
        switch (index) {
            case 0:
                index = R.id.action_1;
                break;
            case 1:
                index = R.id.action_2;
                break;
            case 2:
                index = R.id.action_3;
                break;
            case 3:
                index = R.id.action_4;
                break;
        }
        bottomNavigationView.setSelectedItemId(index);
    }

Answer 5

Instead of selected you need to setChecked(true) that item. Try this code

mBottomNavigationView=(BottomNavigationView)findViewById(R.id.bottom_nav);
mBottomNavigationView.getMenu().findItem(R.id.item_id).setChecked(true);

Checked item is highlighted in BottomNavigationView.

Answer 6

Kotlin Solution

In a Fragment

getActivity()?.myNavigationViewId?.selectedItemId = R.id.other_tab_id

In an Activity

myNavigationViewId?.selectedItemId = R.id.other_tab_id

NOTE: Make sure to replace myNavigationViewId and other_tab_id with your actual navigation view and tab ids.