Add configuration for Github Actions

.github/workflows/release.yml

@@ -0,0 +1,47 @@
+name: Flutter CI
+
+# This workflow is triggered on pushes to the repository.
+on:
+  push:
+    # Sequence of patterns matched against refs/tags
+    tags:
+      - 'v*' # Push events to matching v*, i.e. v4.2.0
+
+jobs:
+  build:
+    # This job will run on ubuntu virtual machine
+    runs-on: ubuntu-latest
+    steps:
+
+      # Setup Java environment in order to build the Android app.
+      - uses: actions/checkout@v1
+      - uses: actions/setup-java@v1
+        with:
+          java-version: '12.x'
+
+      # Setup the flutter environment.
+      - uses: subosito/flutter-action@v1
+        with:
+          channel: 'stable'
+          flutter-version: '2.2.3'
+
+      # Get flutter dependencies.
+      - run: flutter pub get
+
+      # Check for any formatting issues in the code.
+      - run: flutter format --set-exit-if-changed .
+
+      # Statically analyze the Dart code for any errors.
+      - run: flutter analyze .
+
+      # Run widget tests for our flutter project.
+      - run: flutter test
+
+      # Build apk.
+      - run: flutter build apk
+
+      # Upload generated apk to the artifacts.
+      - uses: actions/upload-artifact@v1
+        with:
+          name: release-apk
+          path: build/app/outputs/apk/release/app-release.apk