Flutter/Android Build Management

This post provides a place to collect info around migrating a mature Android application from pre Flutter 3.16 to 3.22 and migrating to the new Gradle DSL changes. It also contains information about Android build, dependency and 3rd party management in general, and links to monitor Gradle, Kotlin, Java and other tooling versions.

General info on Gradle migration

Flutter uses Gradle plugins to build Android apps. Before Flutter 3.16 “Gradle’s legacy, imperative apply script method” was used. Moving forward Android build process uses Gradle’s declarative plugins block, also called the Plugin DSL.

https://docs.flutter.dev/release/breaking-changes/flutter-gradle-plugin-apply https://sigmapie8.medium.com/flutter-3-16-gradle-changes-android-api-34-6e80f52a0659

Gradle

Releases https://gradle.org/releases/ Plugin DSL https://docs.gradle.org/8.5/userguide/plugins.html#sec:plugins_block

Flutter

https://docs.flutter.dev/release/whats-new

Flutter build variables file location /packages/flutter_tools/gradle/src/main/groovy/flutter.groovy https://stackoverflow.com/questions/74446016/where-is-flutter-compilesdkversion

Dart

https://dart.dev/get-dart/archive https://pub.dev/

Android

SDK platform release notes https://developer.android.com/tools/releases/platforms

Android build system

https://developer.android.com/build This includes a table of the Java version required for each Android version

Kotlin

https://kotlinlang.org/docs/releases.html#release-details

Google/Android maven repository

https://maven.google.com/web/index.html

CodeMagic

https://docs.codemagic.io/getting-started/about-codemagic/ macOS build machine specs https://docs.codemagic.io/specs/versions-macos/

• Flutter
• Dart
• Android