Introduction

This is just a personal project for learning about how flutter build process works and learn how whole flutter app is put together. Current version is using a debug build of flutter because that is what my current interest is. Later I will add release build as well.

This respository is just for quick replication and if you want to copy-paste all the steps in the article.

You can read details about how this project works and what are the steps involved: https://hereket.github.io/posts/flutter_without_gradle/

Building

git clone https://github.com/hereket/handmade_flutter
cd handmade_flutter

If you have your own key you can just copy it in to handmade_flutter folder. If you don't have or don't want to bother copying just generate a debug one.

keytool -genkeypair -keystore keystore.jks -alias androidkey \
      -validity 10000 -keyalg RSA -keysize 2048 \
      -storepass android -keypass android

After key generation just run build script. But don't forget to change paths defined inside the script for java, android and flutter root dirs. You should have a look at this variables: SDK, BUILD_TOOLS, PLATFORM, FLUTTER_ROOT, JAVA_HOME

./build.sh

This will create __build/handmade_flutter.apk which you can copy into your device or emulator.

If you want automatically push new apk to your connected device you should uncomment last two lines in the build.sh. Adb will push the apk to the device and launch it automatically.