Add build workflow

.github/workflows/main.yaml

@@ -0,0 +1,33 @@
+name: Build an unsigned apk
+
+on:
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/[email protected]
+
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+          flutter-version-file: pubspec.yaml
+      - run: flutter --version
+
+      - name: Get dependencies
+        run: flutter pub get
+
+      - name: Build release apk
+        run: flutter build apk --split-per-abi
+
+      - name: Upload artifacts
+        uses: actions/[email protected]
+        with:
+          name: Android apks
+          path: build/app/outputs/flutter-apk/*release.apk

pubspec.lock

@@ -1183,4 +1183,4 @@ packages:
     version: "2.2.1"
 sdks:
   dart: ">=3.4.3 <4.0.0"
-  flutter: ">=3.22.0"
+  flutter: ">=3.22.2"

pubspec.yaml

@@ -6,6 +6,7 @@ version: 1.0.0+11
 
 environment:
   sdk: '>=3.4.3 <4.0.0'
+  flutter: 3.22.2
 
 dependencies:
   flutter: