Set roughike bottombar drawable background

Question

I am using roughike bottombar to navigate through fragments in my project, I am trying to set a drawable background to my bottombar but is having difficulty doing so. The example in the official guide https://github.com/roughike/BottomBar only shows how to change the color of the bar. Is there any possible way to do so?

    resId = R.drawable.footer_bg_02;
    bottomBar = BottomBar.attach(this, savedInstanceState);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
        bottomBar.setBackground(resId);
    }
    bottomBar.setFragmentItems(getSupportFragmentManager(), R.id.fragmentContainer,
            new BottomBarFragment(StoreList.newInstance("Content for fragment 1."), R.drawable.ic_01, "fragment 1"),
            new BottomBarFragment(QRscanner.newInstance("Content for fragment 2."), R.drawable.ic_02, "fragment 2"),
            new BottomBarFragment(MyBooking.newInstance("Content for fragment 3."), R.drawable.ic_03, "fragment 3"),
    );

    bottomBar.setOnItemSelectedListener(new OnTabSelectedListener() {
        @Override
        public void onItemSelected(int position) {
            switch (position) {
                case 0:
                    getSupportActionBar();
                    //return;
                case 1:
                    //getSupportActionBar().hide();
                case 2:
                    //return;
                case 3:
                    //getSupportActionBar().hide();
                case 4:
                    //return;
                    // Item 1 Selected
            }
        }
    });

I am trying to use setBackground but cannot get any luck.

Answer 1

This suggestion is from issue, you can use like this:

<com.roughike.bottombar.BottomBar 
    android:id="@+id/bottomBar" 
    android:layout_width="match_parent" 
    android:layout_height="60dp"      
    android:background="@color/colorAccent"  
    android:layout_alignParentBottom="true"  
    app:bb_tabXmlResource="@xml/bottombar_tabs" />