server-ux/barcode_action/wizard/barcode_action_view.xml

<?xml version="1.0" encoding="utf-8"?>

<!--
    Copyright 2017 Eficent Business and IT Consulting Services, S.L.
    Copyright 2017 Creu Blanca
    License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl.html).
-->

<odoo>

    <record id="barcode_action_form" model="ir.ui.view">
        <field name="name">barcode.action.form</field>
        <field name="model">barcode.action</field>
        <field name="arch" type="xml">
            <form string="Find">
                <div class="alert alert-success text-center o_form_header"
                     role="alert" style="margin-bottom:0px;"
                     attrs="{'invisible':[('state', '=', 'warning')]}">
                    <bold><field name="status"/></bold>
                </div>
                <div class="alert alert-danger alert-dismissable text-center"
                     role="alert" style="margin-bottom:0px;"
                     attrs="{'invisible':[('state', '=', 'waiting')]}">
                    <bold><field name="status"/></bold>
                </div>
                <field name="state" invisible="1"/>
                <field name="res_id" invisible="1"/>
                <field name="model" invisible="1"/>
                <field name="method" invisible="1"/>
                <field name="_barcode_scanned" widget="action_barcode_handler"/>
                <footer>
                    <button
                            name="action_cancel"
                            string="Close"
                            class="oe_link"
                            special="cancel"
                    />
                </footer>
            </form>
        </field>
    </record>

    <act_window id="barcode_action_action"
                name="Barcode Launcher"
                res_model="barcode.action"
                view_mode="form"
                view_type="form"
                target="new"/>

</odoo>