在后台运行应用程序 [英] Run the application in background

问题描述

我正在尝试使用kivy构建android应用.如何隐藏我的应用程序，但仍使其像恶魔般在后台运行?

I am trying to build android app using kivy. How I can hide my app but still keep it running in the background like a deamon?

from kivy.config import Config
Config.set('graphics', 'fullscreen', 'fake')

from kivy.app import App
from kivy.uix.button import Button

class MyApp(App):
    def build(self):
        button = Button(text="Exit", size_hint=(None, None))
        button.bind(on_press=exit)
        return button

if __name__ == '__main__':
    MyApp().run()

推荐答案

如果要在后台实际进行计算，则需要使用android服务.适用于Android的Python可以做到这一点，相关文档为此处.

You need to use an android service if you want to actually do computation in the background. Python-for-android can do this, the relevant documentation is here (old_toolchain). For the new toolchain method see here.

如果只希望您的应用程序不完全关闭(以免每次启动时都不会完全启动，则只需将on_pause方法添加到您的App类中即可)应该返回True.您也可以使用此方法执行任何暂停前的操作.但是，该应用程序并没有真正保持运行，只是保持了内存状态.

If you just want your app to not be closed completely (so that it doesn't restart entirely with the splash screen etc. every time), you just have to add an on_pause method to your App class, and it should return True. You can also do any pre-pause stuff in this method. However, the app doesn't really keep running, it just keeps memory state.

在后一种情况下，请注意，Android有时会杀死处于暂停状态的应用程序.这是处理应用程序的正常方式，您无法避免，因此您应该在on_pause方法中保存任何重要状态.

In the latter case, be aware that android can and sometimes will kill apps in a pause state. This is a normal part of the way apps are handled and you can't avoid it, so you should save any important state in your on_pause method.

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