NavigationViewExample.py

# coding: utf-8

import ui


def make_button_item(action, image_name):
    return ui.ButtonItem(action=action, image=ui.Image.named(image_name))


class NavView(ui.View):
    def __init__(self):
        root_view = ui.load_view()
        root_view.left_button_items = [
            make_button_item(self.bt_close, "ionicons-close-24")
        ]
        root_view.right_button_items = [
            make_button_item(self.bt_subview, "ionicons-arrow-right-b-24")
        ]
        self.nav_view = ui.NavigationView(root_view)
        self.nav_view.present(hide_title_bar=True)

    def bt_subview(self, sender):
        sub_view = ui.load_view("switchview1.pyui")
        sub_view.name = "subview"
        sub_view["btn_Okay"].action = self.bt_action
        sub_view["btn_Cancel"].action = self.bt_action
        self.nav_view.push_view(sub_view)

    def bt_close(self, sender):
        self.nav_view.close()

    def bt_action(self, sender):
        print("action from " + sender.name)


NavView()