Kivy Android plyer.gps on_location 回调从未被调用
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【中文标题】Kivy Android plyer.gps on_location 回调从未被调用【英文标题】：Kivy Android plyer.gps on_location Callback is Never Called 【发布时间】：2020-04-01 23:36:51 【问题描述】：我正在使用 Kivy 和 Plyer 编写一个快速测试来获取我手机的 GPS 坐标。
from kivy.app import App
from kivy.logger import Logger
from plyer import gps
def main():
app = GPSApp()
app.run()
class GPSApp(App):
def on_start(self):
Logger.info("Called start")
gps.configure(
on_location=self.on_location
)
gps.start()
def on_location(self, **kwargs):
Logger.info("Called on_location")
Logger.info(kwargs)
if __name__ == '__main__':
main()
如您所见，我在开始时调用 gps.conigure 和 gps.start，并将 self.on_location 作为 on_location 回调传递。当on_start 和on_location 方法都被调用时，我正在记录，我使用adb logcat | grep python 在日志中看到以下内容：
12-08 14:18:50.478 19290 19388 I python : android kivy bootstrap done. __name__ is __main__
12-08 14:18:50.478 19290 19388 I python : AND: Ran string
12-08 14:18:50.478 19290 19388 I python : Run user program, change dir and execute entrypoint
12-08 14:18:50.537 19290 19388 I python : [WARNING] [Config ] Older configuration version detected (0 instead of 21)
12-08 14:18:50.537 19290 19388 I python : [WARNING] [Config ] Upgrading configuration in progress.
12-08 14:18:50.539 19290 19388 I python : [INFO ] [Logger ] Record log in /data/user/0/org.test.gpstest/files/app/.kivy/logs/kivy_19-12-08_0.txt
12-08 14:18:50.539 19290 19388 I python : [INFO ] [Kivy ] v1.11.1
12-08 14:18:50.539 19290 19388 I python : [INFO ] [Kivy ] Installed at "/data/user/0/org.test.gpstest/files/app/_python_bundle/site-packages/kivy/__init__.pyc"
12-08 14:18:50.539 19290 19388 I python : [INFO ] [Python ] v3.7.1 (default, Dec 8 2019, 13:53:01)
12-08 14:18:50.539 19290 19388 I python : [Clang 6.0.2 (https://android.googlesource.com/toolchain/clang 183abd29fc496f55
12-08 14:18:50.539 19290 19388 I python : [INFO ] [Python ] Interpreter at "android_python"
12-08 14:18:50.814 19290 19388 I python : [INFO ] [Factory ] 184 symbols loaded
12-08 14:18:50.931 19290 19388 I python : [INFO ] [Image ] Providers: img_tex, img_dds, img_sdl2, img_gif (img_pil, img_ffpyplayer ignored)
12-08 14:18:50.955 19290 19388 I python : [INFO ] [Text ] Provider: sdl2
12-08 14:18:51.002 19290 19388 I python : [INFO ] [Window ] Provider: sdl2
12-08 14:18:51.019 19290 19388 I python : [INFO ] [GL ] Using the "OpenGL ES 2" graphics system
12-08 14:18:51.019 19290 19388 I python : [INFO ] [GL ] Backend used <sdl2>
12-08 14:18:51.019 19290 19388 I python : [INFO ] [GL ] OpenGL version <b'OpenGL ES 3.2 V@401.0 (GIT@2eb03ad, I4480df913d, 1564143640) (Date:07/26/19)'>
12-08 14:18:51.020 19290 19388 I python : [INFO ] [GL ] OpenGL vendor <b'Qualcomm'>
12-08 14:18:51.020 19290 19388 I python : [INFO ] [GL ] OpenGL renderer <b'Adreno (TM) 640'>
12-08 14:18:51.020 19290 19388 I python : [INFO ] [GL ] OpenGL parsed version: 3, 2
12-08 14:18:51.020 19290 19388 I python : [INFO ] [GL ] Texture max size <16384>
12-08 14:18:51.020 19290 19388 I python : [INFO ] [GL ] Texture max units <16>
12-08 14:18:51.035 19290 19388 I python : [INFO ] [Window ] auto add sdl2 input provider
12-08 14:18:51.036 19290 19388 I python : [INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
12-08 14:18:51.037 19290 19388 I python : [INFO ] Called start
12-08 14:18:51.069 19290 19388 I python : [WARNING] [Base ] Unknown <android> provider
12-08 14:18:51.070 19290 19388 I python : [INFO ] [Base ] Start application main loop
12-08 14:18:51.070 19290 19388 I python : [INFO ] [GL ] NPOT texture support is available
显然Called start 已记录，所以我知道self.on_location 正在传递给gps.configure。但是没有on_location被调用的记录。
这是我的buildozer.spec：
[app]
# (str) Title of your application
title = GPS Test
# (str) Package name
package.name = gpstest
# (str) Package domain (needed for android/ios packaging)
package.domain = org.test
# (str) Source code where the main.py live
source.dir = .
# (list) Source files to include (let empty to include all the files)
source.include_exts = py,png,jpg,kv,atlas
# (list) Source files to exclude (let empty to not exclude anything)
#source.exclude_exts = spec
# (list) List of directory to exclude (let empty to not exclude anything)
#source.exclude_dirs = tests, bin
# (list) List of exclusions using pattern matching
#source.exclude_patterns = license,images/*/*.jpg
# (str) Application versioning (method 1)
# version.regex = __version__ = '(.*)'
# version.filename = %(source.dir)s/main.py
# (str) Application versioning (method 2)
version = 1.0
# (list) Application requirements
requirements = plyer,kivy,python3
# (str) Presplash of the application
#presplash.filename = %(source.dir)s/data/presplash.png
# (str) Icon of the application
#icon.filename = %(source.dir)s/data/icon.png
# (str) Supported orientation (one of landscape, portrait or all)
orientation = portrait
# (bool) Indicate if the application should be fullscreen or not
fullscreen = 0
#
# Android specific
#
# (list) Permissions
android.permissions = INTERNET,ACCESS_COARSE_LOCATION,ACCESS_FINE_LOCATION
# (int) Android API to use
#android.api = 14
# (int) Minimum API required (8 = Android 2.2 devices)
#android.minapi = 8
# (int) Android SDK version to use
#android.sdk = 21
# (str) Android NDK version to use
#android.ndk = 9
# (bool) Use --private data storage (True) or --dir public storage (False)
#android.private_storage = True
# (str) Android NDK directory (if empty, it will be automatically downloaded.)
#android.ndk_path =
# (str) Android SDK directory (if empty, it will be automatically downloaded.)
#android.sdk_path =
# (str) Android entry point, default is ok for Kivy-based app
#android.entrypoint = org.renpy.android.PythonActivity
# (list) List of Java .jar files to add to the libs so that pyjnius can access
# their classes. Don't add jars that you do not need, since extra jars can slow
# down the build process. Allows wildcards matching, for example:
# OUYA-ODK/libs/*.jar
#android.add_jars = foo.jar,bar.jar,path/to/more/*.jar
# (list) List of Java files to add to the android project (can be java or a
# directory containing the files)
#android.add_src =
# (str) python-for-android branch to use, if not master, useful to try
# not yet merged features.
#android.branch = master
# (str) OUYA Console category. Should be one of GAME or APP
# If you leave this blank, OUYA support will not be enabled
#android.ouya.category = GAME
# (str) Filename of OUYA Console icon. It must be a 732x412 png image.
#android.ouya.icon.filename = %(source.dir)s/data/ouya_icon.png
# (str) XML file to include as an intent filters in <activity> tag
#android.manifest.intent_filters =
# (list) Android additionnal libraries to copy into libs/armeabi
#android.add_libs_armeabi = libs/android/*.so
# (bool) Indicate whether the screen should stay on
# Don't forget to add the WAKE_LOCK permission if you set this to True
#android.wakelock = False
# (list) Android application meta-data to set (key=value format)
#android.meta_data =
# (list) Android library project to add (will be added in the
# project.properties automatically.)
#android.library_references =
#
# iOS specific
#
# (str) Name of the certificate to use for signing the debug version
# Get a list of available identities: buildozer ios list_identities
#ios.codesign.debug = "iPhone Developer: <lastname> <firstname> (<hexstring>)"
# (str) Name of the certificate to use for signing the release version
#ios.codesign.release = %(ios.codesign.debug)s
[buildozer]
# (int) Log level (0 = error only, 1 = info, 2 = debug (with command output))
log_level = 2
# -----------------------------------------------------------------------------
# List as sections
#
# You can define all the "list" as [section:key].
# Each line will be considered as a option to the list.
# Let's take [app] / source.exclude_patterns.
# Instead of doing:
#
# [app]
# source.exclude_patterns = license,data/audio/*.wav,data/images/original/*
#
# This can be translated into:
#
# [app:source.exclude_patterns]
# license
# data/audio/*.wav
# data/images/original/*
#
# -----------------------------------------------------------------------------
# Profiles
#
# You can extend section / key with a profile
# For example, you want to deploy a demo version of your application without
# HD content. You could first change the title to add "(demo)" in the name
# and extend the excluded directories to remove the HD content.
#
# [app@demo]
# title = My Application (demo)
#
# [app:source.exclude_patterns@demo]
# images/hd/*
#
# Then, invoke the command line with the "demo" profile:
#
# buildozer --profile demo android debug
为什么从未调用过self.on_location？我相信我已经设置了适当的权限和要求，日志中没有错误，并且我的设备上启用了 GPS。我在这里还缺少其他设置吗？我是否错误地使用了plyer？
我确实尝试复制/粘贴 example 并得到相同的结果。
【问题讨论】：
是否与警告有关：Unknown <android> provider?
我遇到了同样的问题，因为该应用没有在我的设备上启用位置权限。请确保已启用，然后重试。。
【参考方案1】：
这个例子对我有用。如果您将 android 包含在要求中？我的需求是这样的，jnius也包括在内：
要求 = python3、kivy、android、jnius、kivmob、plyer
【讨论】：
我个人认为未能重现问题应该是评论。 我没有足够的声望点来写这个作为评论，所以这就是它成为答案的原因...... :)以上是关于Kivy Android plyer.gps on_location 回调从未被调用的主要内容，如果未能解决你的问题，请参考以下文章