SImple wrapper class to support fonts in TabLayout

FontTabLayout.java

public class FontTabLayout extends TabLayout {

    private Typeface typeface;

    public FontTabLayout(Context context) {
        super(context);
        init(context, null);
    }

    public FontTabLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(context, attrs);
    }

    public FontTabLayout(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init(context, attrs);
    }

    private void init(Context context, AttributeSet attrs) {
        String font;
        if (attrs == null) {
            font = FontNames.DEFAULT;
        } else {
            String attributeName = context.getResources().getResourceEntryName(R.attr.fontPath);
            final int stringResourceId = attrs.getAttributeResourceValue(null, attributeName, -1);
            if (stringResourceId > 0) {
                font = context.getString(stringResourceId);
            } else {
                font = attrs.getAttributeValue(null, attributeName);
            }
        }
        typeface = Typeface.createFromAsset(getContext().getAssets(), font);
    }

    @Override
    public void addTab(@NonNull Tab tab, int position, boolean setSelected) {
        super.addTab(tab, position, setSelected);

        ViewGroup mainView = (ViewGroup) getChildAt(0);
        ViewGroup tabView = (ViewGroup) mainView.getChildAt(tab.getPosition());
        int tabChildCount = tabView.getChildCount();
        for (int i = 0; i < tabChildCount; i++) {
            View tabViewChild = tabView.getChildAt(i);
            if (tabViewChild instanceof TextView) {
                ((TextView) tabViewChild).setTypeface(typeface, Typeface.NORMAL);
            }
        }
    }
}