Created GitHub actions workflow

.github/workflows/release.yaml

@@ -0,0 +1,43 @@
+name: Release build
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "Version number"
+        default: "1.0.0+1"
+jobs:
+  build:
+    name: Build APK and Create release
+    needs: [version]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: Update version in YAML
+        run: sed -i 's/99.99.99+99/${{ github.event.inputs.version }}/g' pubspec.yaml
+      - name: Update KeyStore password in gradle properties
+        run: sed -i 's/#{KEYSTORE_PASS}#/${{ secrets.KEYSTORE_PASS }}/g' android/key.properties
+      - name: Update KeyStore key password in gradle properties
+        run: sed -i 's/#{KEYSTORE_KEY_PASS}#/${{ secrets.KEYSTORE_KEY_PASS }}/g' android/key.properties
+      - uses: actions/setup-java@v1
+        with:
+          java-version: "18.x"
+      - uses: subosito/flutter-action@v1
+        with:
+          channel: "stable"
+      - run: flutter clean
+      - run: flutter pub get
+      - run: flutter build apk --release
+      - run: flutter build appbundle --release
+      - name: Create a Release in GitHub
+        uses: ncipollo/release-action@v1
+        with:
+          artifacts: "build/app/outputs/apk/release/*.apk,build/app/outputs/bundle/release/app-release.aab"
+          token: ${{ secrets.GH_TOKEN }}
+          tag: ${{ steps.version.outputs.content }}
+          commit: ${{ github.sha }}
+      - name: Upload app bundle
+        uses: actions/upload-artifact@v2
+        with:
+          name: appbundle
+          path: build/app/outputs/bundle/release/app-release.aab

android/app/build.gradle

@@ -25,6 +25,12 @@ apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
+def keystoreProperties = new Properties()
+def keystorePropertiesFile = rootProject.file('key.properties')
+if (keystorePropertiesFile.exists()) {
+   keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+}
+
 android {
     compileSdkVersion 33
     ndkVersion flutter.ndkVersion
@@ -53,11 +59,18 @@ android {
         versionName flutterVersionName
     }
 
+    signingConfigs {
+        release {
+            keyAlias keystoreProperties['keyAlias']
+            keyPassword keystoreProperties['keyPassword']
+            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
+            storePassword keystoreProperties['storePassword']
+        }
+    }
+
     buildTypes {
         release {
-            // TODO: Add your own signing config for the release build.
+            signingConfig signingConfigs.release
-            // Signing with the debug keys for now, so `flutter run --release` works.
-            signingConfig signingConfigs.debug
         }
     }
 }

pubspec.yaml

@@ -17,7 +17,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 2.3.2+61
+version: 99.99.99+99
 
 environment:
   sdk: '>=2.18.1 <3.0.0'