Question

我正在尝试使用Kivy和Python创建一个包含许多屏幕的简单应用程序，其中包含文本信息。我真的是编码方面的新手。问题是，当我用Buildozer做apk时，大约需要10秒钟才能在手机上启动（5秒钟-启动屏幕，然后5秒钟是黑屏）。

我认为问题在于App正在尝试在启动过程中加载每个屏幕。有什么方法可以使应用程序加载更快？

main.py

from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.uix.scrollview import ScrollView
from kivy.properties import StringProperty
from kivy.uix.label import Label

class HomeScreen(Screen):
    pass

class ScrollableLabel(ScrollView):
    pass

class FirstScreen(Screen):
    pass


class SecondScreen(Screen):
    pass

...

class FortyScreen(Screen):
    pass

GUI = Builder.load_file("main.kv")


class MainApp(App):

    def build(self):
        return GUI

    def change_screen(self, screen_name):
        screen_manager = self.root.ids['screen_manager']
        screen_manager.current = screen_name



MainApp().run()

main.kv

#:include firstscreen.kv
#:include secondscreen.kv
...
#:include fortyscreen.kv

GridLayout:
    cols: 1
    ScreenManager:
        id: screen_manager
        HomeScreen:
            name: "home_screen"
            id: home_screen
        FirstScreen:
            name: "first_screen"
            id: first_screen
        SecondScreen:
            name: "second_screen"
            id: second_screen
            ...
        FortyScreen:
            name: "normal"
            id: normal

firstscreen.kv

<FirstScreen>:
    GridLayout:
        padding: [15,0,15,15]
        canvas:
            Color:
                rgb: utils.get_color_from_hex("#ffffff")
            Rectangle:
                size: self.size
                pos: self.pos
        cols:1
        ScrollView:
            Label:
                color: 0, 0, 0, 1
                background_color: 255, 255, 255, 1
                size_hint_y: None
                height: self.texture_size[1]
                text_size: self.width, None
                text:"""Really long long string""" * 40
        BoxLayout:
            cols:2
            size_hint_y: None
            Button:
                color: 0, 0, 0, 1
                size_hint_y: None
                background_color: 255, 255, 255, 1
                text:
                    "Menu"
                on_release:
                    app.change_screen("home_screen")

如何加快Kivy应用程序的启动速度，该应用程序包含具有多个屏幕的screen_manager？

0 个答案: