Flutter Android 16KB Setup Gist

app-build.gradle

// app/build.gradle

plugins {
    id 'com.android.application'
    // Use modern Kotlin Android plugin ID aligned with settings.gradle
    id 'org.jetbrains.kotlin.android'
    id 'dev.flutter.flutter-gradle-plugin'
}

...

android {
    // Use build tools 36.0.0 alongside compileSdk 36
    compileSdkVersion 36
    buildToolsVersion "36.0.0"
    // Updated to NDK r28 (16KB memory pages compatible)
    ndkVersion "28.0.12433566"

    compileOptions {
        sourceCompatibility = JavaVersion.VERSION_21
        targetCompatibility = JavaVersion.VERSION_21
    }

    kotlinOptions {
        // Match Kotlin JVM target to Java 21
        jvmTarget = JavaVersion.VERSION_21.toString()
    }
    
    ...
}

...

build.gradle

buildscript {
    // Align Kotlin to 2.1.0 for toolchain consistency with Java 21
    ext.kotlin_version = "2.1.0"
    repositories {
        google()
        mavenCentral()
    }

    dependencies {
        // Android Gradle Plugin 8.12.0 for SDK 36 and 16KB page support
        classpath "com.android.tools.build:gradle:8.12.0"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

...

gradle-wrapper.properties

distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
# Gradle wrapper bumped for AGP 8.12.x compatibility and Java 21
distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-all.zip

settings.gradle

plugins {
    // Upgraded for Android 16KB pages + latest SDKs
    // AGP 8.12.0, Kotlin 2.1.0 (ensure Flutter Gradle plugin supports these)
    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
    id "com.android.application" version "8.12.0" apply false
    id "org.jetbrains.kotlin.android" version "2.1.0" apply false
}