CODE EXAMPLE FOR JAVA

ExpandableLayout in android

expandableLayout.setRenderer(new ExpandableLayout.Renderer<FruitCategory, Fruit>() {
    @Override
    public void renderParent(View view, FruitCategory model, boolean isExpanded, int parentPosition) {
        ((TextView) view.findViewById(R.id.tvParent)).setText(model.name);
    }

    @Override
    public void renderChild(View view, Fruit model, int parentPosition, int childPosition) {
        ((TextView) view.findViewById(R.id.tvChild)).setText(model.name);
    }
});