修正上架時 Google Play 檢查出的 issue

android/app/build.gradle.kts

@@ -1,12 +1,21 @@
+import java.util.Properties
+import java.io.FileInputStream
+
+// 1. 在 android 區塊上方讀取 key.properties 設定檔
+val keystoreProperties = Properties()
+val keystorePropertiesFile = rootProject.file("key.properties")
+if (keystorePropertiesFile.exists()) {
+    keystoreProperties.load(FileInputStream(keystorePropertiesFile))
+}
+
 plugins {
     id("com.android.application")
     id("kotlin-android")
-    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
     id("dev.flutter.flutter-gradle-plugin")
 }
 
 android {
-    namespace = "com.example.learn"
+    namespace = "tw.com.gex.eisapp"
     compileSdk = flutter.compileSdkVersion
     ndkVersion = flutter.ndkVersion
 
@@ -16,29 +25,46 @@ android {
     }
 
     kotlinOptions {
-        jvmTarget = JavaVersion.VERSION_17.toString()
+        // 修正原本的 jvmTarget 警告，改用較新的寫法
+        freeCompilerArgs += "-Xjvm-default=all"
+        jvmTarget = "17"
     }
 
     defaultConfig {
-        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId = "com.example.learn"
-        // You can update the following values to match your application needs.
-        // For more information, see: https://flutter.dev/to/review-gradle-config.
+        applicationId = "tw.com.gex.eisapp"
         minSdk = flutter.minSdkVersion
         targetSdk = flutter.targetSdkVersion
         versionCode = flutter.versionCode
         versionName = flutter.versionName
     }
 
+    // 2. 定義簽署配置 (這一段非常重要)
+    signingConfigs {
+        create("release") {
+            keyAlias = keystoreProperties.getProperty("keyAlias")
+            keyPassword = keystoreProperties.getProperty("keyPassword")
+            storePassword = keystoreProperties.getProperty("storePassword")
+
+            // 處理 storeFile 的路徑
+            val path = keystoreProperties.getProperty("storeFile")
+            if (path != null) {
+                storeFile = file(path)
+            }
+        }
+    }
+
     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")
+        getByName("release") {
+            // 3. 修正：將簽署配置從 "debug" 改為我們上面定義的 "release"
+            signingConfig = signingConfigs.getByName("release")
+
+            // 下面這兩項在初次成功打包前建議先設為 false
+            isMinifyEnabled = false
+            isShrinkResources = false
         }
     }
 }
 
 flutter {
     source = "../.."
-}
+}