Add proguard

android/app/build.gradle

@@ -64,6 +64,9 @@ android {
         release {
             // TODO: Add your own signing config for the release build.
             // Signing with the debug keys for now, so `flutter run --release` works.
+            minifyEnabled true
+            shrinkResources true
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
             signingConfig signingConfigs.debug
         }
     }

android/app/proguard-rules.pro

@@ -0,0 +1,10 @@
+## Flutter wrapper
+ -keep class io.flutter.app.** { *; }
+ -keep class io.flutter.plugin.** { *; }
+ -keep class io.flutter.util.** { *; }
+ -keep class io.flutter.view.** { *; }
+ -keep class io.flutter.** { *; }
+ -keep class io.flutter.plugins.** { *; }
+# -keep class com.google.firebase.** { *; } // uncomment this if you are using firebase in the project
+ -dontwarn io.flutter.embedding.**
+ -ignorewarnings

android/gradle.properties

@@ -2,3 +2,4 @@ org.gradle.jvmargs=-Xmx1536M
 android.enableR8=true
 android.useAndroidX=true
 android.enableJetifier=true
+extra-gen-snapshot-options=--obfuscate

pubspec.yaml

@@ -15,7 +15,7 @@ publish_to: "none" # Remove this line if you wish to publish to pub.dev
 # In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
-version: 1.0.2+1
+version: 1.0.3
 
 environment:
   sdk: ">=2.7.0 <3.0.0"