Create main.yml

.github/workflows/main.yml

@@ -0,0 +1,24 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+      
+jobs:
+  test:
+    name: Test on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    steps:
+      - uses: actions/checkout@v2
+      - uses: subosito/flutter-action@v1
+      
+      - run: flutter doctor -v
+      - run: flutter pub get
+      - run: flutter analyze
+      - run: flutter format .
+      - run: flutter test