Support 16 KB page sizes

[hui0613]

Sources:

https://developer.android.com/guide/practices/page-sizes
https://android.googlesource.com/platform/ndk/+/master/docs/BuildSystemMaintainers.md#Page-sizes
http://android-developers.googleblog.com/2024/08/adding-16-kb-page-size-to-android.html

Starting November 1st, 2025, all new apps and updates to existing apps submitted to Google Play and targeting Android 15+ devices must support 16 KB page sizes on 64-bit devices.

Does kivy support 16kb page size?

[mecrayavcin]

I have a basic Kivy app that I have published in the Google Play Store. Today I got a warning message in Policy Status:

Your app is affected by Google Play's 16 KB page size requirements To ensure your app works correctly on the latest versions of Android, Google Play requires all apps targeting Android 15+ to support 16 KB memory page sizes.

From May 1, 2026, if your app updates do not support 16 KB memory page sizes, you won't be able to release these updates.

App must support 16 KB memory page sizes. To ensure your app works correctly on the latest versions of Android, Google Play requires all apps targeting Android 15+ to support 16 KB memory page sizes. From Nov 1, 2025, if your app updates do not support 16 KB memory page sizes, you won't be able to release these updates. Your latest production release does not support 16 KB memory page sizes.

My buildozer.spec settings:

Default gradle version 8.0.2

osx.python_version = 3.11.7
osx.kivy_version = 2.3.0
android.api = 35
android.minapi = 21
android.sdk = 35
android.ndk = 25b
p4a.branch = master

So, how can I fix App must support 16 KB memory page sizes Google Play Policy Status error for my basic Kivy APP?
i could not find a solution for my basic Kivy APP which i compile via Buildozer

[YellowLight021]

I have the save question，and i have try to change my ndk to 26b, but it will be error when build

[T-Dynamos]

NDK version r28 and higher compile 16 KB-aligned by default.

develop branch is already at ndk r28.

[mecrayavcin]

NDK version r28 and higher compile 16 KB-aligned by default.

Master branch is already at ndk r28.

Yes BUT

android.ndk = 28
When we use android.ndk = 28 at Buildozer SPECS we get
"'ALooper_pollAll' is unavailable: obsoleted in Android 1 - ALooper_pollAll may ignore wakes. Use ALooper_pollOnce instead."
ERROR

Can't compile APK/AAB via Buildozer at android.ndk = 28

[T-Dynamos]

@mecrayavcin You need to set p4a.branch to develop.

[mecrayavcin]

@mecrayavcin You need to set p4a.branch to develop.

@T-Dynamos Thanks for your fast reply.

Here is my cleaned settings!

[app]

title = Football Predictor
package.name = footballpredictor
package.domain = org.mecra
source.dir = .
source.include_exts = py,png,jpg,kv,atlas,ttf
source.include_patterns = images/*.png, fonts/*.ttf
version = 5.3
requirements = python3==3.11.7,kivy==2.3.0,requests==2.31.0,android,jnius,pytz==2024.1
presplash.filename = %(source.dir)s/images/loading.png
icon.filename = %(source.dir)s/images/icon.png
orientation = portrait
osx.python_version = 3.11.7
osx.kivy_version = 2.3.0
fullscreen = 0
android.permissions = INTERNET, ACCESS_NETWORK_STATE
android.api = 35
android.minapi = 24
android.sdk = 35
android.ndk = 28
android.add_src = ./src
android.gradle_dependencies = com.google.firebase:firebase-ads:21.4.0, androidx.appcompat:appcompat:1.6.1, androidx.activity:activity:1.6.1
android.enable_androidx = True
android.add_packaging_option = jniLibs/useLegacyPackaging=true
android.archs = arm64-v8a, armeabi-v7a
android.allow_backup = True
android.release_artifact = aab
android.debug_artifact = apk
p4a.branch = develop

1. I've changed android.ndk = 25b > android.ndk = 28

2. When i compile via Buildozer it always use Gradle 8.0.2 (don't know why - but works well) so Chatgpt give me below code!
   android.add_packaging_option = jniLibs/useLegacyPackaging=true

   Because according to https://developer.android.com/guide/practices/page-sizes#build
   AGP version 8.5 or lower > We need to use below code, BUT!

android {
...
packagingOptions {
jniLibs {
useLegacyPackaging true
}
}
}

Chatgpt suggested me to use android.add_packaging_option = jniLibs/useLegacyPackaging=true for above code block!

3. i've changed p4a.branch = master > p4a.branch = develop

RESULTS:

[INFO   ] /home/seo/.buildozer/android/platform/android-ndk-r28/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -target armv7a-linux-androideabi24 -fomit-frame-pointer -march=armv7-a -mfloat-abi=softfp -mfpu=vfp -mthumb -fPIC -shared -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/libs_collections/footballpredictor/armeabi-v7a -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/python3/armeabi-v7a__ndk_target_24/python3/android-build -lpython3.11 -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/libs_collections/footballpredictor/armeabi-v7a -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/libs_collections/footballpredictor -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/bootstrap_builds/sdl2/obj/local/armeabi-v7a -target armv7a-linux-androideabi24 -fomit-frame-pointer -march=armv7-a -mfloat-abi=softfp -mfpu=vfp -mthumb -fPIC -I/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/python3/armeabi-v7a__ndk_target_24/python3/Include -DANDROID -I/home/seo/.buildozer/android/platform/android-ndk-r28/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include -I/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/python-installs/footballpredictor/armeabi-v7a/include/python3.1 build/temp.linux-x86_64-cpython-311/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/kivy-sdl2/armeabi-v7a__ndk_target_24/kivy/kivy/core/audio/audio_sdl2.o -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/bootstrap_builds/sdl2/jni/SDL/include -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/bootstrap_builds/sdl2/jni/SDL2_image/include -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/bootstrap_builds/sdl2/jni/SDL2_mixer/include -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/bootstrap_builds/sdl2/jni/SDL2_ttf -lSDL2 -lSDL2_ttf -lSDL2_image -lSDL2_mixer -o build/lib.linux-x86_64-cpython-311/kivy/core/audio/audio_sdl2.cpython-311-x86_64-linux-gnu.so -lm
3 warnings generated.
[INFO   ] /home/seo/.buildozer/android/platform/android-ndk-r28/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -target armv7a-linux-androideabi24 -fomit-frame-pointer -march=armv7-a -mfloat-abi=softfp -mfpu=vfp -mthumb -fPIC -shared -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/libs_collections/footballpredictor/armeabi-v7a -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/python3/armeabi-v7a__ndk_target_24/python3/android-build -lpython3.11 -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/libs_collections/footballpredictor/armeabi-v7a -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/libs_collections/footballpredictor -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/bootstrap_builds/sdl2/obj/local/armeabi-v7a -target armv7a-linux-androideabi24 -fomit-frame-pointer -march=armv7-a -mfloat-abi=softfp -mfpu=vfp -mthumb -fPIC -I/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/python3/armeabi-v7a__ndk_target_24/python3/Include -DANDROID -I/home/seo/.buildozer/android/platform/android-ndk-r28/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include -I/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/python-installs/footballpredictor/armeabi-v7a/include/python3.1 build/temp.linux-x86_64-cpython-311/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/kivy-sdl2/armeabi-v7a__ndk_target_24/kivy/kivy/graphics/svg.o -o build/lib.linux-x86_64-cpython-311/kivy/graphics/svg.cpython-311-x86_64-linux-gnu.so -lm
1 warning generated.
[INFO   ] /home/seo/.buildozer/android/platform/android-ndk-r28/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -target armv7a-linux-androideabi24 -fomit-frame-pointer -march=armv7-a -mfloat-abi=softfp -mfpu=vfp -mthumb -fPIC -shared -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/libs_collections/footballpredictor/armeabi-v7a -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/python3/armeabi-v7a__ndk_target_24/python3/android-build -lpython3.11 -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/libs_collections/footballpredictor/armeabi-v7a -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/libs_collections/footballpredictor -L/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/bootstrap_builds/sdl2/obj/local/armeabi-v7a -target armv7a-linux-androideabi24 -fomit-frame-pointer -march=armv7-a -mfloat-abi=softfp -mfpu=vfp -mthumb -fPIC -I/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/python3/armeabi-v7a__ndk_target_24/python3/Include -DANDROID -I/home/seo/.buildozer/android/platform/android-ndk-r28/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include -I/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/python-installs/footballpredictor/armeabi-v7a/include/python3.1 build/temp.linux-x86_64-cpython-311/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/kivy-sdl2/armeabi-v7a__ndk_target_24/kivy/kivy/graphics/vertex_instructions.o -o build/lib.linux-x86_64-cpython-311/kivy/graphics/vertex_instructions.cpython-311-x86_64-linux-gnu.so -lm
 error: command '/home/seo/.buildozer/android/platform/android-ndk-r28/toolchains/llvm/prebuilt/linux-x86_64/bin/clang' failed with exit code 1

ERROR Backend subprocess exited when trying to invoke build_wheel


  STDERR:

# Command failed: ['/home/seo/Desktop/buildozerEnv/bin/python3', '-m', 'pythonforandroid.toolchain', 'create', '--dist_name=footballpredictor', '--bootstrap=sdl2', '--requirements=python3==3.11.7,kivy==2.3.0,requests==2.31.0,android,jnius,pytz==2024.1', '--arch=arm64-v8a', '--arch=armeabi-v7a', '--copy-libs', '--color=always', '--storage-dir=/home/seo/Desktop/buildozerEnv/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a', '--ndk-api=24', '--ignore-setup-py', '--debug']
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# 
# Buildozer failed to execute the last command
# The error might be hidden in the log above this error
# Please read the full log, and search for it before
# raising an issue with buildozer itself.
# In case of a bug report, please add a full log with log_level = 2
(buildozerEnv) seo@seo:~/Desktop/buildozerEnv/mod_APP$ 

error: command '/.../clang' failed with exit code 1
ERROR Backend subprocess exited when trying to invoke build_wheel

When i start buildozer it errors all the time:

ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
python-for-android 2024.1.21 requires sh<2.0,>=1.10; sys_platform != "win32", but you have sh 2.2.2 which is incompatible.

According to Chatgpt, error is related with it but i dont' know because when i use android.ndk = 25b (same error) but there is no problem while compiling aab/apk.

What i tried:

requirements = python3==3.11.7,kivy==2.3.0,requests==2.31.0,android,jnius,pytz==2024.1,sh==1.14.3
pip install sh==1.14.3 --force-reinstall --no-deps

PLUS for example i tried to uninstall sh by pip uninstall sh that i install it by pip install sh==1.14.3
But when i run buildozer android release it always upgrade it and when i check pip list, i see sh == 2.2.2

What do you think? What is this error is related with in android.ndk = 28?

Thanks

UPDATED--------------

i used p4a.branch = master
i installed pip install sh==1.14.3
NOW when i run buildozer android release it it still sh==1.14.3 when i check it via pip list.
sh == 2.2.2 problem is related with p4a.branch = develop
Now i am trying to compile apk/aab.
i will share the result
'ALooper_pollAll' is unavailable: obsoleted in Android 1 - ALooper_pollAll may ignore wakes. Use ALooper_pollOnce instead.

Result -----------------------:

if android.ndk = 28 and i used p4a.branch = master
Error is:
'ALooper_pollAll' is unavailable: obsoleted in Android 1 - ALooper_pollAll may ignore wakes. Use ALooper_pollOnce instead.

if android.ndk = 28 and i used p4a.branch = develop
Error is:
ERROR Backend subprocess exited when trying to invoke build_wheel
that i think releated with sh == 2.2.2 because we can't set it to sh==1.14.3
Maybe maybe it is related with sh verision, maybe it is related with another thing.

Can you help me about it?

Thanks

[YellowLight021]

yes, it seems sh can not deal the problem about pip confilcts. And it also shows "python-for-android 2024.1.21"

. my error seems with the "scikit_build_core",it seems cannot import it.

I also set my buildozer to the develop, but error still exist.

[T-Dynamos]

ERROR Backend subprocess exited when trying to invoke build_wheel

@mecrayavcin Please attach full log.

[mecrayavcin]

ERROR Backend subprocess exited when trying to invoke build_wheel

@mecrayavcin Please attach full log.

how can i get full log?

Chatgpt: some recommendations for logs:
buildozer android debug -v
buildozer android debug 2>&1 | tee build.log
buildozer android debug --verbose 2>&1 | tee full_build.log

Which one should i use?

Thanks

[T-Dynamos]

this would work:

buildozer android debug --verbose 2>&1 | tee full_build.log

[mecrayavcin]

buildozer android debug --verbose 2>&1 | tee full_build.log

Thanks so much.

My Kivy Project

• fonts folder
• images folder
• main.py file
• kv file
• src folder > org > test > kivymob_test > HAS 2 file InterstitialAdLoadCallback4kivy.java and RewardedAdLoadCallback4kivy.java
  Because stock kivymob does not show ads so i use a modded version and works well.
  [Modded Kivmob] WORKS MichaelStott/KivMob#140

android.ndk = 28 and p4a.branch = develop

LOG Result
p4a_branch_develop_fullbuild.log

[T-Dynamos]

@mecrayavcin error seems:

	/home/seo/Desktop/APP/mod_APP/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/kivy-sdl2/armeabi-v7a__ndk_target_24/kivy/kivy/graphics/cgl_backend/cgl_gl.c:4382:52: error: incompatible function pointer types assigning to 'void (*)(GLuint, GLsizei, const GLchar **, const GLint *)' (aka 'void (*)(unsigned int, int, const char **, const int *)') from 'void (GLuint, GLsizei, const GLchar *const *, const GLint *)' (aka 'void (unsigned int, int, const char *const *, const int *)') [-Wincompatible-function-pointer-types]

I think this should not happen after #3180, you can test with that PR.

In buildozer.spec

p4a.fork = T-Dynamos
p4a.branch = python-update