Odoo Activity View

<record id="view_activity_example_tree" model="ir.ui.view">
<field name="name">activity.example.tree</field>
<field name="model">activity.example</field>
<field name="priority">2</field>
<field name="arch" type="xml">
<tree string="Overtime records">
<field name="name"></field>
</tree>
</field>
</record>