pos/pos_loyalty/views/loyalty_reward_view.xml

<?xml version="1.0"?>
<odoo>
    <record id="loyalty_reward_form_view" model="ir.ui.view">
        <field name="name">loyalty.reward.form</field>
        <field name="model">loyalty.reward</field>
        <field name="arch" type="xml">
            <form string="Loyalty Reward">
                <div class="oe_title">
                    <label class="oe_edit_only" for="name"/>
                    <h1>
                        <field name="name" class="oe_inline"/>
                    </h1>
                </div>
                <group>
                    <field name="type"/>
                </group>
                <group >
                    <field name="gift_product_id"
                           attrs="{'invisible':[('type','!=','gift')], 'required':[('type','=','gift')]}"/>
                    <field name="discount"
                           attrs="{'invisible':[('type','!=','discount')]}"/>
                    <field name="discount_max"
                           attrs="{'invisible':[('type','!=','discount')]}"/>
                    <field name="discount_product_id"
                           attrs="{'invisible':[('type','!=','discount')], 'required':[('type','=','discount')]}"/>
                    <field name="point_product_id"
                           attrs="{'invisible': [('type','!=','resale')], 'required': [('type','=','resale')]}"/>
                </group>
                <group>
                    <field name="point_cost"
                           attrs="{'invisible':[('type','=','resale')]}"/>
                    <field name="minimum_points"/>
                </group>
            </form>
        </field>
    </record>
</odoo>