| # Example of building a Flutter app for Android using Gradle |
| |
| This project demonstrates how to embed Flutter within an Android application |
| and build the Android and Flutter components with Gradle. |
| |
| To build this project: |
| |
| * Create a `local.properties` file with these entries: |
| * `sdk.dir=[path to the Android SDK]` |
| * `flutter.sdk=[path to the Flutter SDK]` |
| * `flutter.jar=[path to the flutter.jar file in your build of the Flutter engine]` |
| |
| Then run: |
| |
| * `gradle wrapper` |
| * `./gradlew build` |
| |
| ## Updating the Dart code |
| |
| You can push new Dart code to a Flutter app during development without performing |
| a full rebuild of the Android app package. |
| |
| The `flutter refresh` tool manages this process. `flutter refresh` will build |
| a snapshot of an app's Dart code, copy it to an Android device, and send an |
| intent instructing the Android app to load the snapshot. |
| |
| To try this out: |
| |
| * Install and run this app on your device |
| * Edit the Dart code in `app/src/flutter/lib` |
| * cd `app/src/flutter` |
| * `flutter refresh --activity com.example.flutter/.ExampleActivity` |
| |
| `flutter refresh` sends an `ACTION_RUN` intent with an extra containing the |
| device filesystem path where the snapshot was copied. `ExampleActivity.java` |
| shows how an activity can handle this intent and load the new snapshot into |
| a Flutter view. |
