refactor: Migrate Android app's Gradle build script from Kotlin DSL to Groovy DSL

android/app/build.gradle

@@ -0,0 +1,53 @@
+plugins {
+    id "com.android.application"
+    id "kotlin-android"
+    id "dev.flutter.flutter-gradle-plugin"
+}
+
+def keystoreProperties = new Properties()
+def keystorePropertiesFile = rootProject.file("keystore.properties")
+if (keystorePropertiesFile.exists()) {
+    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+}
+
+android {
+    namespace "com.example.hadi_hoda_flutter"
+    compileSdk 36
+    ndkVersion flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+
+    defaultConfig {
+        applicationId "com.example.hadi_hoda_flutter"
+        minSdk 24
+        targetSdk 36
+        versionCode flutter.versionCode.toInteger()
+        versionName flutter.versionName
+    }
+
+    signingConfigs {
+        release {
+            keyAlias keystoreProperties['keyAlias']
+            keyPassword keystoreProperties['keyPassword']
+            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
+            storePassword keystoreProperties['storePassword']
+        }
+    }
+
+    buildTypes {
+        release {
+            signingConfig signingConfigs.release
+        }
+    }
+}
+
+flutter {
+    source "../.."
+}

android/app/build.gradle.kts

@@ -1,80 +0,0 @@
-import kotlin.text.all
-import kotlin.text.find
-import kotlin.text.isNotEmpty
-import kotlin.text.replace
-import java.io.FileInputStream
-import java.util.Properties
-
-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")
-}
-
-def keystoreProperties = new Properties()
-def keystorePropertiesFile = rootProject.file('keystore.properties')
-if (keystorePropertiesFile.exists()) {
-    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
-}
-
-android {
-    namespace = "com.example.hadi_hoda_flutter"
-    compileSdk = 36
-    ndkVersion = flutter.ndkVersion
-
-    compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_11
-        targetCompatibility = JavaVersion.VERSION_11
-    }
-
-    kotlinOptions {
-        jvmTarget = JavaVersion.VERSION_11.toString()
-    }
-
-    defaultConfig {
-        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId = "com.example.hadi_hoda_flutter"
-        // You can update the following values to match your application needs.
-        // For more information, see: https://flutter.dev/to/review-gradle-config.
-        minSdk = 24
-        targetSdk = 36
-        versionCode = flutter.versionCode
-        versionName = flutter.versionName
-    }
-
-    signingConfigs {
-        create("release") {
-            keyAlias = keystoreProperties['keyAlias']
-            keyPassword = keystoreProperties['keyPassword']
-            storeFile = file(keystoreProperties['storeFile'])
-            storePassword = keystoreProperties['storePassword']
-        }
-    }
-
-    buildTypes {
-        release {
-            signingConfig = signingConfigs.getByName("release")
-        }
-    }
-
-    applicationVariants.all {
-        val variant = this
-        variant.outputs.all {
-            val output = this
-            // Get the architecture (ABI) for the current output. Note: Flutter often uses 'armeabi-v7a', 'arm64-v8a', etc.
-            val abi = output.filters.find { it.filterType == "ABI" }?.identifier?.replace("armeabi-", "") ?: ""
-
-            // Make sure we are dealing with an APK output
-            if (output is com.android.build.gradle.internal.api.ApkVariantOutputImpl) {
-                // Append the ABI to the filename, with a hyphen if it exists
-                val abiSuffix = if (abi.isNotEmpty()) "-$abi" else ""
-                output.outputFileName = "Hadi & Hoda v${variant.versionName}+${variant.versionCode}${abiSuffix}.apk"
-            }
-        }
-    }
-}
-
-flutter {
-    source = "../.."
-}