bottom navigation bar not filling the width of the screen

<resources xmlns:tools="http://schemas.android.com/tools">
    <dimen name="design_bottom_navigation_item_max_width" tools:override="true">600dp</dimen>
    <dimen name="design_bottom_navigation_active_item_max_width" tools:override="true">600dp</dimen>
</resources>

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    ....
    if (mShiftingMode) {
        final int inactiveCount = count - 1;
        final int activeMaxAvailable = width - inactiveCount * mInactiveItemMinWidth;
        final int activeWidth = Math.min(activeMaxAvailable, mActiveItemMaxWidth);
        final int inactiveMaxAvailable = (width - activeWidth) / inactiveCount;
        final int inactiveWidth = Math.min(inactiveMaxAvailable, mInactiveItemMaxWidth);
        ...
    } else {
        final int maxAvailable = width / count;
        final int childWidth = Math.min(maxAvailable, mActiveItemMaxWidth);
        .....
    }
    ....
}

public BottomNavigationMenuView(Context context, AttributeSet attrs) {
    super(context, attrs);
    ...
    mInactiveItemMaxWidth = res.getDimensionPixelSize(
            R.dimen.design_bottom_navigation_item_max_width);
    ....
    mActiveItemMaxWidth = res.getDimensionPixelSize(
            R.dimen.design_bottom_navigation_active_item_max_width);
    .....
}