Created main.yaml

Added CI/CD to Flutter

.github/workflows/main.yml

@@ -0,0 +1,23 @@
+on: push
+name: Test, Build and Release apk
+jobs:
+  build:
+    name: Build APK
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions/setup-java@v1
+      with:
+        java-version: '12.x'
+    - uses: subosito/flutter-action@v1
+      with:
+        flutter-version: '1.12.x'
+        channel: 'stable'
+    - run: flutter pub get
+    - run: flutter test
+    - run: flutter build apk --debug --split-per-abi
+    - name: Create a Release APK
+      uses: ncipollo/release-action@v1
+      with:
+        artifacts: "build/app/outputs/apk/debug/*.apk"
+        token: ${{ secrets.TOKEN }}