How to build app compliant with Google Play 64-bit requirement?

Question

After I upload the APK to play store I got the following warning. What changes should I make to release an APK build with flutter SDK to meet the 64-bit requirement?

Answer 1

I finally was able to fix this by adding this to build.gradle

 ndk {
        abiFilters  "armeabi-v7a", "arm64-v8a"
    }
}

splits {
    abi {
        include  "armeabi-v7a", "arm64-v8a"
    }
 }
 applicationVariants.all { variant ->
    variant.outputs.each { output ->
        // For each separate APK per architecture, set a unique version code as described here:
        // http://tools.android.com/tech-docs/new-build-system/user-guide/apk-splits
        def versionCodes = ["armeabi-v7a":1, "arm64-v8a":2]
        def abi = output.getFilter(OutputFile.ABI)
        if (abi != null) {  // null for the universal-debug, universal-release variants
            output.versionCodeOverride =
                    versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
        }
    }
 }

There is not a lot of clear documentation on this, I happened to run into this by scouring the internet.

Answer 2

Flutter 1.5.4-hotfix.2 appbundle currently targets android-arm which builds only 32bit native code (flutter build appbundle -h). To change this run flutter build appbundle --target-platform=android-arm64 to change the default target.

Answer 3

I built mine with this code and i still get the error.

flutter build appbundle --target-platform=android-arm64

Answer 4

if you use Android Studio

just go to Build -> Flutter -> Build App Bundle to replace it with apk when uploaded to google play

Answer 5

Guys they changed new policies for 64-bit architectures. So please put this code in your gradle

ndk.abiFilters 'armeabi-v7a','arm64-v8a','x86','x86_64'

for e.g.

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.test.test"
        minSdkVersion 15
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        ndk.abiFilters 'armeabi-v7a','arm64-v8a','x86','x86_64'
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
}

Answer 6

Now there is a new better solution provided by the futter team.
You need to use the new flutter version 1.7.12. (my setup)

Flutter 1.7.12-pre.40 • channel master • https://github.com/flutter/flutter.git
Framework • revision 3badcf51a4 (13 hours ago) • 2019-06-28 15:14:03 -0700
Engine • revision e96900df2f
Tools • Dart 2.4.0

Then you can build your (single) app bundle for x86 and x64 with this command.
flutter build appbundle

Additional you can add --release --target-platform android-arm,android-arm64. But this might cause a broken app...