build.gradle

import com.android.build.OutputFile

android {
    splits {
    //...
    }
    
    // Map for the version code that gives each ABI a value.
    def abiCodes = ['x86':1, 'x86_64':2, 'armeabi-v7a':3, 'arm64-v8a':4]

    // APKs for the same app that all have the same version information.
    android.applicationVariants.all { variant ->
        // Assigns a different version code for each output APK.
        variant.outputs.each {
            output ->
                def abiName = output.getFilter(OutputFile.ABI)
                output.versionCodeOverride = abiCodes.get(abiName, 0) * 100000 + variant.versionCode
        }
    }
}