如何使用服务文件在后台运行我的 kivy 应用程序？

Question

我正在构建一个 kivy 应用程序，我想在后台运行或在使用另一个应用程序时运行。

到目前为止，我确实有一个服务文件，但它似乎不起作用。该应用程序打包完美，没有任何错误，并且应用程序没有崩溃。 buildozer.spec 文件很好。那么任何人都可以告诉我我哪里出错了。

Main.py -

import kivy
from kivy.app import App
from kivy.clock import Clock
from kivy.uix.label import Label
from kivy.uix.gridlayout import GridLayout
from plyer import accelerometer, spatialorientation, vibrator
from jnius import autoclass

spatialorientation.enable_listener()
accelerometer.enable()
time = 2

class MyGrid(GridLayout):
    def __init__(self, **kwargs):
        super(MyGrid, self).__init__(**kwargs)
        self.rows = 2
        self.accel = Label(text = "unknown")
        self.orien = Label(text = "unknown")
        self.add_widget(self.accel)
        self.add_widget(self.orien)

class MyApp(App):
    def build(self):
        self.service = autoclass('org.test.myapp.ServiceMyservice')
        mActivity = autoclass('org.kivy.android.PythonActivity').mActivity
        argument = ''
        self.service.start(mActivity, argument)
        self.grid = MyGrid()
        Clock.schedule_interval(self.update, 2/10)
        return self.grid

    def update(self, dt):
        accel1 = accelerometer.acceleration
        accel2 = (round(accel1[0], 2), round(accel1[1], 2), round(accel1[2], 2))
        new_accel = ', '.join(map(str, accel2))
        orien1 = spatialorientation.orientation
        orien2 = (round(orien1[0], 2), round(orien1[1], 2), round(orien1[2], 2))
        new_orien = ', '.join(map(str, orien2))

        if accel2[1] < 7 and orien2[1] > -0.65:
            vibrator.vibrate(time = time)
        else:
            self.grid.accel.text = new_accel
            self.grid.orien.text = new_orien


MyApp().run()

service.py -

from plyer import accelerometer, spatialorientation, vibrator, flash
from time import sleep

spatialorientation.enable_listener()
accelerometer.enable()
time = 2

def flashlight():
    flash.on()
    sleep(.2)
    flash.off()
    sleep(.2)

if __name__ == '__main__':
    while True:
        accel1 = accelerometer.acceleration
        accel2 = (round(accel1[0], 2), round(accel1[1], 2), round(accel1[2], 2))
        new_accel = ', '.join(map(str, accel2))
        orien1 = spatialorientation.orientation
        orien2 = (round(orien1[0], 2), round(orien1[1], 2), round(orien1[2], 2))
        new_orien = ', '.join(map(str, orien2))

        if accel2[1] < 7 and orien2[1] > -0.65:
            vibrator.vibrate(time = time)
            flashlight()
        else:
           sleep(.1)
           flash.off()

日志脚本 -

03-06 12:53:08.677 23341 28506 I python  : Android kivy bootstrap done. __name__ is __main__
03-06 12:53:08.677 23341 28506 I python  : AND: Ran string
03-06 12:53:08.677 23341 28506 I python  : Run user program, change dir and execute entrypoint
03-06 12:53:08.786 23341 28506 I python  : [WARNING] [Config      ] Older configuration version detected (0 instead of 21)
03-06 12:53:08.787 23341 28506 I python  : [WARNING] [Config      ] Upgrading configuration in progress.
03-06 12:53:08.792 23341 28506 I python  : [INFO   ] [Logger      ] Record log in /data/user/0/org.test.myapp/files/app/.kivy/logs/kivy_22-03-06_0.txt
03-06 12:53:08.792 23341 28506 I python  : [INFO   ] [Kivy        ] v2.0.0
03-06 12:53:08.792 23341 28506 I python  : [INFO   ] [Kivy        ] Installed at "/data/user/0/org.test.myapp/files/app/_python_bundle/site-packages/kivy/__init__.pyc"
03-06 12:53:08.792 23341 28506 I python  : [INFO   ] [Python      ] v3.8.9 (default, Feb 25 2022, 19:21:33) 
03-06 12:53:08.792 23341 28506 I python  : [Clang 8.0.2 (https://android.googlesource.com/toolchain/clang 40173bab62ec7462
03-06 12:53:08.792 23341 28506 I python  : [INFO   ] [Python      ] Interpreter at ""
03-06 12:53:08.793 23341 28506 I python  : [INFO   ] [Logger      ] Purge log fired. Analysing...
03-06 12:53:08.793 23341 28506 I python  : [INFO   ] [Logger      ] Purge finished!
03-06 12:53:09.684 23341 28506 I python  : [INFO   ] [Factory     ] 186 symbols loaded
03-06 12:53:09.841 23341 28506 I python  : [INFO   ] [Image       ] Providers: img_tex, img_dds, img_sdl2 (img_pil, img_ffpyplayer ignored)
03-06 12:53:09.862 23341 28506 I python  : [INFO   ] [Text        ] Provider: sdl2
03-06 12:53:10.191 23341 28506 I python  : [INFO   ] [Window      ] Provider: sdl2
03-06 12:53:10.381 28518 28539 I python  : Initializing Python for Android
03-06 12:53:10.381 28518 28539 I python  : Setting additional env vars from p4a_env_vars.txt
03-06 12:53:10.381 28518 28539 I python  : Changing directory to the one provided by ANDROID_ARGUMENT
03-06 12:53:10.381 28518 28539 I python  : /data/user/0/org.test.myapp/files/app
03-06 12:53:10.381 28518 28539 I python  : Preparing to initialize python
03-06 12:53:10.381 28518 28539 I python  : _python_bundle dir exists
03-06 12:53:10.381 28518 28539 I python  : calculated paths to be...
03-06 12:53:10.381 28518 28539 I python  : /data/user/0/org.test.myapp/files/app/_python_bundle/stdlib.zip:/data/user/0/org.test.myapp/files/app/_python_bundle/modules
03-06 12:53:10.382 28518 28539 I python  : set wchar paths...
03-06 12:53:10.490 28518 28539 I python  : Initialized python
03-06 12:53:10.490 28518 28539 I python  : AND: Init threads
03-06 12:53:10.494 28518 28539 I python  : AND: Ran string
03-06 12:53:10.494 28518 28539 I python  : Run user program, change dir and execute entrypoint
03-06 12:53:10.719 23341 28506 I python  : [INFO   ] [GL          ] Using the "OpenGL ES 2" graphics system
03-06 12:53:10.722 23341 28506 I python  : [INFO   ] [GL          ] Backend used <sdl2>
03-06 12:53:10.723 23341 28506 I python  : [INFO   ] [GL          ] OpenGL version <b'OpenGL ES 3.2 v1.r19p0-01rel0.###other-sha0123456789ABCDEF0###'>
03-06 12:53:10.724 23341 28506 I python  : [INFO   ] [GL          ] OpenGL vendor <b'ARM'>
03-06 12:53:10.726 23341 28506 I python  : [INFO   ] [GL          ] OpenGL renderer <b'Mali-G72'>
03-06 12:53:10.728 23341 28506 I python  : [INFO   ] [GL          ] OpenGL parsed version: 3, 2
03-06 12:53:10.731 23341 28506 I python  : [INFO   ] [GL          ] Texture max size <8192>
03-06 12:53:10.734 23341 28506 I python  : [INFO   ] [GL          ] Texture max units <16>
03-06 12:53:10.800 23341 28506 I python  : [INFO   ] [Window      ] auto add sdl2 input provider
03-06 12:53:10.803 23341 28506 I python  : [INFO   ] [Window      ] virtual keyboard not allowed, single mode, not docked
03-06 12:53:10.995 23341 28506 I python  : [WARNING] [Base        ] Unknown <android> provider
03-06 12:53:10.995 23341 28506 I python  : [INFO   ] [Base        ] Start application main loop
03-06 12:53:10.998 23341 28506 I python  : [INFO   ] [GL          ] NPOT texture support is available
03-06 12:53:14.076 28518 28539 I python  : Python for android ended.
03-06 12:53:19.769 23341 28506 I python  : [INFO   ] [Base        ] Leaving application in progress...
03-06 12:53:19.814 23341 28506 I python  : Python for android ended.

Answer 1

在 main.py 中，定义服务并启动它：

from jnius import autoclass
SERVICE_NAME = u'{packagename}.Service{servicename}'.format(
    packagename=u'org.kivy.test',
    servicename=u'Myservice'
)
service = autoclass(SERVICE_NAME)
mActivity = autoclass(u'org.kivy.android.PythonActivity').mActivity
argument = ''
service.start(mActivity, argument)

在 buildozer.spec 中：

# (str) Package name
package.name = test

# (str) Package domain (needed for android/ios packaging)
package.domain = org.kivy

# (list) List of service to declare
services = Myservice:service.py