Change build config

Change applicationId to click.vpnclient.vpnclient
Make android signing optional

Author: pkongkha

android/app/build.gradle.kts

@@ -16,7 +16,7 @@ if (keystorePropertiesFile.exists()) {
 }
 
 android {
-    namespace = "vpnclient.click"
+    namespace = "click.vpnclient.vpnclient"
     compileSdk = flutter.compileSdkVersion
 
     compileOptions {
@@ -29,10 +29,7 @@ android {
     }
 
     defaultConfig {
-        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId = "vpnclient.click"
-        // You can update the following values to match your application needs.
-        // For more information, see: https://flutter.dev/to/review-gradle-config.
+        applicationId = "click.vpnclient.vpnclient"
         minSdk = flutter.minSdkVersion
         targetSdk = flutter.targetSdkVersion
         versionCode = flutter.versionCode
@@ -41,19 +38,24 @@ android {
 
     signingConfigs {
         create("release") {
-            keyAlias = keystoreProperties["keyAlias"] as String
-            keyPassword = keystoreProperties["keyPassword"] as String
-            storeFile = keystoreProperties["storeFile"]?.let { file(it) }
-            storePassword = keystoreProperties["storePassword"] as String
+            if (keystorePropertiesFile.exists()) {
+                keyAlias = keystoreProperties["keyAlias"] as String
+                keyPassword = keystoreProperties["keyPassword"] as String
+                storeFile = keystoreProperties["storeFile"]?.let { file(it) }
+                storePassword = keystoreProperties["storePassword"] as String
+            }
         }
     }
+
     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.getByName("debug")
-            signingConfig = signingConfigs.getByName("release")
+            if (keystorePropertiesFile.exists()) {
+                signingConfig = signingConfigs.getByName("release")
+            } else {
+                println("Warning: No release signing config defined, the release build will be unsigned.")
+            }
 
+            isMinifyEnabled = true
         }
     }
 }