[shared_preference] Flutter lib is not 16KB page ready anymore for its Android implementation shared_preferences_android: 2.4.20 due to androidx.datastore:datastore: 1.2.0 #182898

Steps to reproduce

Using latest flutter shared_preferences: ^2.5.4 . or even ^2.5.3 - the flutter Android application is not longer 16KB page compatible for arm64-v8a or x86_64 architectures - as per Android Studio Panda 1 | 2025.3.1 Patch 1 > Build > Analyze APK tool

This is caused by "libdatastore_shared_counter.so" as not 16KB ready - that comes from the shared_preferences package, through its Android implementation "shared_preferences_android:2.4.20", that was updated to use a newer version of native android lib "androidx.datastore:datastore:1.2.0" – that provides the native "libdatastore_shared_counter.so" as not compatible with 16KB page support.

OBS:
1- looking at the updates history for "shared_preferences_android" we can see that the update from version 2.4.19 to 2.4.20 also updated the native lib "androidx.datastore:datastore" version from 1.1.7 (16KB ready) to 1.2.0 (16KB not ready). Thus something broke the 16KB support in ver 1.2.0 of datastore lib, since it was ok in 1.1.7

2 - considering the OBS(1) - I've found a temp workaround - to add a force resolution strategy in flutter project "android/build.gradle", to force the usage of ver 1.1.7 for androidx.datastore:XXX libs.
I've done some tests and seen no side effects with this workaround, including on dedicated 16KB - ARM and x86 emulators, but this is still ugly and potential error prone - and we should not be forced to use it.

// Force DataStore 1.1.7 for 16K page size compatibility (1.2.0 .so is incompatible) project.configurations.all { resolutionStrategy { force 'androidx.datastore:datastore:1.1.7' force 'androidx.datastore:datastore-android:1.1.7' force 'androidx.datastore:datastore-core:1.1.7' force 'androidx.datastore:datastore-core-android:1.1.7' force 'androidx.datastore:datastore-preferences:1.1.7' force 'androidx.datastore:datastore-preferences-android:1.1.7' } }

For my project - I will consider this workaround to be used ONLY if this bug is not fixed in time in the shared pref flutter lib itself - when 16KB builds will be imposed for play-store release. So please fix it in time :)

Expected results

shared_preferences: - to fully support 16KB page size for all common architectures ARM and x86_64

Actual results

shared_preferences: - no longer supports 16KB page size for all common architectures ARM and x86_64 - due to 16KB page incompatible version used for native android lib "androidx.datastore:datastore:1.2.0"

Code sample

• create a simple flutter app - with support for Android - using Android Studio
• add shared_preferences: ^2.5.4 as flutter dependency in main flutter pubspec.yaml
• build apk with android studio -release or debug
• analyze the resulted APK with Android Studio > Build > Analyze APK > select your APK
• wait for the tool to finish the analysis and check 16KB page support warnings

Screenshots or Video

Logs

Flutter Doctor output

[✓] Flutter (Channel stable, 3.38.9, on macOS 26.3 xxxxx darwin-arm64, locale en-US) [1,241ms]
• Flutter version 3.38.9 on channel stable at /Users/xxxxx/Library/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 67323de (4 weeks ago), 2026-01-28 13:43:12 -0800
• Engine revision 587c18f
• Dart version 3.10.8
• DevTools version 2.51.1
• Feature flags: enable-web, enable-linux-desktop, enable-macos-desktop, enable-windows-desktop, enable-android, enable-ios, cli-animations, enable-native-assets, omit-legacy-version-file, enable-lldb-debugging

[✓] Android toolchain - develop for Android devices (Android SDK version 36.1.0) [5.1s]
• Android SDK at /Users/xxxxx/Library/Android/sdk
• Emulator version 36.4.9.0 (build_id 14788078) (CL:N/A)
• Platform android-36.1, build-tools 36.1.0
• ANDROID_HOME = /Users/xxxxx/Library/Android/sdk
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
This is the JDK bundled with the latest Android Studio installation on this machine.
To manually set the JDK path, use: flutter config --jdk-dir="path/to/jdk".
• Java version OpenJDK Runtime Environment (build 21.0.9+-14649483-b1163.86)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 26.2) [3.2s]
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 17C52
• CocoaPods version 1.16.2

[✓] Chrome - develop for the web [5ms]
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Connected device (4 available) [6.7s]
• SM G990B2 (mobile) • xxxxxxxxx • android-arm64 • Android 16 (API 36)
• BDiPhone12 (mobile) • xxxxxxxxxxxxxxxxx • ios • iOS 26.2.1 xxxxx
• macOS (desktop) • macos • darwin-arm64 • macOS 26.3 xxxxx darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 145.0.7632.116

[✓] Network resources [797ms]
• All expected network resources are available.

• No issues found!