When uploading APK release files to Google Play: 3 warnings per file

[HeRo002]

Hi!

I have successfully compiled 2 signed APK release files (32bit and 64bit).
When I upload them on the Google Play Console, I get these 3 warnings:

3 MESSAGES FOR VERSION CODE 8213
Warning
This APK results in unused code and resources being sent to users. Your app could be smaller if you used the Android App Bundle. By not optimising your app for device configurations, your app is larger to download and install on users' devices than it needs to be. Larger apps see lower installation success rates and take up storage on users' devices.

Warning
This APK contains Java/Kotlin code, which might be obfuscated. We recommend that you upload a deobfuscation file to make your crashes and ANRs easier to analyse and debug. Learn more - https://developer.android.com/studio/build/shrink-code#decode-stack-trace

Warning
This APK contains native code, and you've not uploaded debug symbols. We recommend that you upload a symbol file to make your crashes and ANRs easier to analyse and debug. Learn more - https://developer.android.com/studio/build/shrink-code#native-crash-support

On https://groups.google.com/g/kivy-users/c/8AjU7H8Cpic/m/3KwFhcnWBAAJ there is a discussion that warns that Buildozer will seize to function in August 2021, because Google will start to enforce mandatory use of the app bundle format...

So I hope someone will be able to solve these issues before that.
Thank you. :-)

PS: I had to specify "android.api = 29" in buildozer.spec.

Versions

• Python: 3.8.1
• OS: Ubuntu 20.04 ( -> Android)
• Buildozer: 1.2.0

Description

// REPLACE ME: What are you trying to get done, what has happened, what went wrong, and what did you expect?

buildozer.spec

Command:

buildozer android release

Spec file:

[app]

# (str) Title of your application
title = Geo-ESP Training

# (str) Package name
# package.name = GeoESPtraining
package.name = geoesptrainingtest

# (str) Package domain (needed for android/ios packaging)
package.domain = dk.transformation

# (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
source.include_exts = 

# (list) List of inclusions using pattern matching
#source.include_patterns = assets/*,images/*.png

# (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 = bin

# (list) List of exclusions using pattern matching
#source.exclude_patterns = license,images/*/*.jpg

# (str) Application versioning (method 1)
version = 0.3

# (str) Application versioning (method 2)
# version.regex = __version__ = ['"](.*)['"]
# version.filename = %(source.dir)s/main.py

# (list) Application requirements
# comma separated e.g. requirements = sqlite3,kivy
requirements = python3,kivy==2.0.0,docutils,fluent.runtime,babel,fluent.syntax,attrs
# TRY removing pillow (3D graph)

# (str) Custom source folders for requirements
# Sets custom source for any requirements with recipes
# requirements.source.kivy = ../../kivy

# (list) Garden requirements
#garden_requirements =

# (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, sensorLandscape, portrait or all)
orientation = all

# (list) List of service to declare
#services = NAME:ENTRYPOINT_TO_PY,NAME2:ENTRYPOINT2_TO_PY

#
# OSX Specific
#

#
# author = © Copyright Info

# change the major version of python used by the app
osx.python_version = 3

# Kivy version to use
osx.kivy_version = 1.11.1

#
# Android specific
#

# (bool) Indicate if the application should be fullscreen or not
fullscreen = 0

# (string) Presplash background color (for new android toolchain)
# Supported formats are: #RRGGBB #AARRGGBB or one of the following names:
# red, blue, green, black, white, gray, cyan, magenta, yellow, lightgray,
# darkgray, grey, lightgrey, darkgrey, aqua, fuchsia, lime, maroon, navy,
# olive, purple, silver, teal.
#android.presplash_color = #FFFFFF

# (list) Permissions
#android.permissions = INTERNET

# (int) Target Android API, should be as high as possible.
android.api = 29

# (int) Minimum API your APK will support.
#android.minapi = 21

# (int) Android SDK version to use
#android.sdk = 20

# (str) Android NDK version to use
#android.ndk = 19b

# (int) Android NDK API to use. This is the minimum API your app will support, it should usually match android.minapi.
#android.ndk_api = 21

# (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) ANT directory (if empty, it will be automatically downloaded.)
#android.ant_path =

# (bool) If True, then skip trying to update the Android sdk
# This can be useful to avoid excess Internet downloads or save time
# when an update is due and you just want to test/build your package
# android.skip_update = False

# (bool) If True, then automatically accept SDK license
# agreements. This is intended for automation only. If set to False,
# the default, you will be shown the license when first running
# buildozer.
# android.accept_sdk_license = False

# (str) Android entry point, default is ok for Kivy-based app
#android.entrypoint = org.renpy.android.PythonActivity

# (str) Android app theme, default is ok for Kivy-based app
# android.apptheme = "@android:style/Theme.NoTitleBar"

# (list) Pattern to whitelist for the whole project
#android.whitelist =
# android.whitelist = '*.rst'

# (str) Path to a custom whitelist file
#android.whitelist_src =

# (str) Path to a custom blacklist file
#android.blacklist_src =

# (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 =

# (list) Android AAR archives to add (currently works only with sdl2_gradle
# bootstrap)
#android.add_aars =

# (list) Gradle dependencies to add (currently works only with sdl2_gradle
# bootstrap)
#android.gradle_dependencies =
android.gradle_dependencies = "com.android.support:support-core-utils:27.0.0"

# (list) add java compile options
# this can for example be necessary when importing certain java libraries using the 'android.gradle_dependencies' option
# see https://developer.android.com/studio/write/java8-support for further information
# android.add_compile_options = "sourceCompatibility = 1.8", "targetCompatibility = 1.8"

# (list) Gradle repositories to add {can be necessary for some android.gradle_dependencies}
# please enclose in double quotes 
# e.g. android.gradle_repositories = "maven { url 'https://kotlin.bintray.com/ktor' }"
#android.add_gradle_repositories =

# (list) packaging options to add 
# see https://google.github.io/android-gradle-dsl/current/com.android.build.gradle.internal.dsl.PackagingOptions.html
# can be necessary to solve conflicts in gradle_dependencies
# please enclose in double quotes 
# e.g. android.add_packaging_options = "exclude 'META-INF/common.kotlin_module'", "exclude 'META-INF/*.kotlin_module'"
#android.add_gradle_repositories =

# (list) Java classes to add as activities to the manifest.
#android.add_activities = com.example.ExampleActivity

# (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 =

# (str) launchMode to set for the main activity
#android.manifest.launch_mode = standard

# (list) Android additional libraries to copy into libs/armeabi
#android.add_libs_armeabi = libs/android/*.so
#android.add_libs_armeabi_v7a = libs/android-v7/*.so
#android.add_libs_arm64_v8a = libs/android-v8/*.so
#android.add_libs_x86 = libs/android-x86/*.so
#android.add_libs_mips = libs/android-mips/*.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 =

# (list) Android shared libraries which will be added to AndroidManifest.xml using <uses-library> tag
#android.uses_library =

# (str) Android logcat filters to use
#android.logcat_filters = *:S python:D

# (bool) Copy library instead of making a libpymodules.so
#android.copy_libs = 1

# (str) The Android arch to build for, choices: armeabi-v7a, arm64-v8a, x86, x86_64
android.arch = armeabi-v7a

# (int) overrides automatic versionCode computation (used in build.gradle)
# this is not the same as app version and should only be edited if you know what you're doing
# android.numeric_version = 1

#
# Python for android (p4a) specific
#

# (str) python-for-android fork to use, defaults to upstream (kivy)
#p4a.fork = kivy

# (str) python-for-android branch to use, defaults to master
#p4a.branch = master

# (str) python-for-android git clone directory (if empty, it will be automatically cloned from github)
#p4a.source_dir =
p4a.source_dir = /mnt/4AF15A0435E762B4/mypython/my-p4a-copy-new/python-for-android-master/

# (str) The directory in which python-for-android should look for your own build recipes (if any)
#p4a.local_recipes =

# (str) Filename to the hook for p4a
#p4a.hook =

# (str) Bootstrap to use for android builds
# p4a.bootstrap = sdl2

# (int) port number to specify an explicit --port= p4a argument (eg for bootstrap flask)
#p4a.port =


#
# iOS specific
#

# (str) Path to a custom kivy-ios folder
#ios.kivy_ios_dir = ../kivy-ios
# Alternately, specify the URL and branch of a git checkout:
ios.kivy_ios_url = https://github.com/kivy/kivy-ios
ios.kivy_ios_branch = master

# Another platform dependency: ios-deploy
# Uncomment to use a custom checkout
#ios.ios_deploy_dir = ../ios_deploy
# Or specify URL and branch
ios.ios_deploy_url = https://github.com/phonegap/ios-deploy
ios.ios_deploy_branch = 1.7.0

# (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 = 1

# (int) Display warning if buildozer is run as root (0 = False, 1 = True)
warn_on_root = 1

# (str) Path to build artifact storage, absolute or relative to spec file
# build_dir = ./.buildozer

# (str) Path to build output (i.e. .apk, .ipa) storage
# bin_dir = ./bin

#    -----------------------------------------------------------------------------
#    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

[HeRo002]

There seems to be a limited workaround for creating AAB files by Robert Flatt:

https://github.com/RobertFlatt/Android-for-Python/tree/main/Android-for-Python-Users#how-to-create-a-release-bundle-aab

Buildozer does not currently build .aab files. The following is a summary of a workaround posted on Google Groups - https://groups.google.com/g/kivy-users/c/LmoegwYuEEk/m/II-wuO-nAgAJ . This workaround only applies to single architecture bundles, there is no workaround for multi architecture bundles. [Because architecture specific Kivy app code is in the apk in assets/private.mp3, but in .aab assets are architecture independent. A resolution would require renaming private.mp3 for each archicture, and the app picking the right one for the device.]

But I haven't tried it myself yet.

[AndyRusso]

Hello! The creation of aab files have been added via: kivy/python-for-android#2467

Have you managed to find a solution to the This APK contains native code warning? I'm facing the same warning. Except for me it's This App Bundle contains native code, the rest is the same.

[HeRo002]

No. I haven't really worked on it. My project has been kind of 'sleeping' for some time. :-)

[oliviazow]

Hello! Has any of you solved these warnings? I get the same warnings too:
2 MESSAGES FOR VERSION CODE 10211
Warning
There is no deobfuscation file associated with this App Bundle. If you use obfuscated code (R8/proguard), uploading a deobfuscation file will make crashes and ANRs easier to analyze and debug. Using R8/proguard can help reduce app size. Learn More

Warning
This App Bundle contains native code, and you've not uploaded debug symbols. We recommend you upload a symbol file to make your crashes and ANRs easier to analyze and debug. Learn More

I was using https://gist.github.com/Guhan-SenSam/35c5ed7da254a7c0141e6a8b6101eb33 to generated the .AAB file

[AndyRusso]

Hello, @yayazhao! No, I didn't solve the warnings. But I made a little bit of a research, and contacted Guhan-SenSam, the guy who wrote the gist you were making .aab from. He had uploaded Kivy application recently back then. And from his experience, these warnings didn't make any difference on the logs that Google Play provides you, they were without any obfuscation, and you could read the logs easily.

My research showed that this was due to p4a stripping the debug symbols of compiled .so files. You can upload debug symbols in Google Play Console separately from your .aab file, in a form of just .so files with the debug symbols. I have tried many things to get it not strip the debug symbols from these files. It seemed to work, if it would not be a release compilation (no --release flag in p4a, or a buildozer debug ... in buildozer) and including --with-debug-symbols (no idea how to do this with buildozer, p4a only I guess)
Then after compiling that apk, you can unzip it, and collect all of the needed compiled files with debug symbols.

I have not uploaded these files though, so this is not 100% tested. You can get the debug symbols, this is tested. Can you get rid of this warning? Well, it needs testing.

To sum everything up:

• You can still view logs provided by Google Play with no problems.
• To most likely get rid of this warning you will need to:

1. Compile debug version of your application with --with-debug-symbols (you will probably need to do this in p4a, no idea how to do this in buildozer)
2. Unpack apk from step one.
3. Get all .so files.
4. Upload them to Google Play Console

Hope you will be able to get rid of these warnings!

[oliviazow]

Thanks for all the information, @AndyRusso , I will look more based on this. Have a great holiday!

[github-actions]

👋 @HeRo002, we use the issue tracker exclusively for bug reports and feature requests. However, this issue appears to be a support request. Please use our support channels to get help with the project.
Let us know if this comment was made in error, and we'll be happy to reopen the issue.