android center align the selected tab in tablayout

Question

I am using android support design tablayout. Here\'s my code:

Answer 1

public class MyTabLayout extends TabLayout {

    public MyTabLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
        setTabMode(MODE_SCROLLABLE);
    }

    @Override
    protected void onLayout(boolean changed, int l, int t, int r, int b) {
        super.onLayout(changed, l, t, r, b);
        if (!changed) return;
        int totalTabsWidth = 0;
        for (int i = 0; i < getTabCount(); i++)
            totalTabsWidth += ((ViewGroup) getChildAt(0)).getChildAt(i).getWidth();
        int padding = (getWidth() - totalTabsWidth) / 2;
        if (padding < 0) padding = 0;
        getChildAt(0).setPaddingRelative(padding, 0, padding, 0);
    }
}