release setup

android/app/build.gradle

@@ -6,6 +6,14 @@ if (localPropertiesFile.exists()) {
     }
 }
 
+//  release keys
+def keystoreProperties = new Properties()
+def keystorePropertiesFile = rootProject.file('key.properties')
+if (keystorePropertiesFile.exists()) {
+    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+}
+
+
 def flutterRoot = localProperties.getProperty('flutter.sdk')
 if (flutterRoot == null) {
     throw new Exception("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
@@ -49,12 +57,18 @@ android {
         versionCode flutterVersionCode.toInteger()
         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.
-            // Signing with the debug keys for now, so `flutter run --release` works.
-            signingConfig signingConfigs.debug
+            signingConfig signingConfigs.release
         }
     }
 }