修复Kivy的最小化功能

Question

我目前正在使用猕猴桃和硒制作智能电视界面。我试图使其在按界面上的按钮时的位置加载浏览器，然后最小化mainapp屏幕。尽管隐藏和最小化功能对我都不起作用。再说一次，我在理解它们的工作方式时遇到问题，请帮忙。此外，任何提示都将不胜感激。

from kivy.config import Config
from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.floatlayout import FloatLayout
from selenium import webdriver
Config.set('graphics', 'resizable', 'False')
Config.set('graphics', 'borderless', 'True')
Config.set('graphics', 'fullscreen', 'auto')
x = .25
y = .25
xpos = 1366/4
ypos = 768/3
#def returnapp():
#    while

def netflix_log(x):
    import kivy.core.window
    from kivy.core import window
    chrome_options = webdriver.ChromeOptions()
    chrome_options.add_argument("--disable-infobars")
    driver = webdriver.Chrome(chrome_options=chrome_options)
    driver.fullscreen_window()
    driver.get("https://www.beta.netflix.com/login")
    driver.find_element_by_name("userLoginId").send_keys("1234")
    driver.find_element_by_name("password").send_keys("1234")
    submit = driver.find_element_by_css_selector(".btn.login-button.btn-submit.btn-small")
    submit.click()
    hide(mainapp).run()
    return


netflix = Button(background_normal=('netflix.png'),
                 size_hint=(x, y),
                 pos=(0 + 10, ypos + 10),
                 on_press=netflix_log)
hulu = Button(background_normal=('hulu.png'),
              size_hint=(x, y),
              pos=(xpos, ypos))
youtube = Button(background_normal=('youtube.png'),
                 size_hint=(x, y),
                 pos=(xpos * 2, ypos))
fox = Button(background_normal=('fox.png'),
             size_hint=(x, y),
             pos=(xpos * 3, ypos))
amazon_prime = Button(background_normal=('amazon prime.png'),
                      size_hint=(x, y),
                      pos=(0, 0))
youtube_tv = Button(background_normal=('Youtubetv.png'),
                    size_hint=(x, y),
                    pos=(xpos, 0))
settings = Button(background_normal=("settings.png"),
                  size_hint=(x, y),
                  pos=(xpos * 2, 0))
applications = [netflix, hulu, youtube, fox, amazon_prime, youtube_tv, settings]


class mainapp(App):

    def build(self):
        print("e2")
        lay = FloatLayout()
        for i in applications:
            lay.add_widget(i)
        return lay

def settings_click():
    for items in applications:
        FloatLayout().remove_widget(items)
    for items in settings_menu:
        FloatLayout().add_widget(items)
        return FloatLayout()

mainapp().run()