gradle fix

Author: CedricGuillemet

Modules/@babylonjs/react-native/android/build.gradle

@@ -10,20 +10,6 @@
 //   original location:
 //   - https://github.com/facebook/react-native/blob/0.58-stable/local-cli/templates/HelloWorld/android/app/build.gradle
 
-buildscript {
-    ext.safeExtGet = {prop, fallback ->
-        rootProject.ext.has(prop) ? rootProject.ext.get(prop) : fallback
-    }
-    repositories {
-        google()
-        gradlePluginPortal()
-    }
-    dependencies {
-        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${safeExtGet("kotlinVersion", "1.8.0")}")
-        classpath("com.android.tools.build:gradle:8.1.1")
-    }
-}
-
 def isNewArchitectureEnabled() {
     return project.hasProperty("newArchEnabled") && project.newArchEnabled == "true"
 }
@@ -41,7 +27,6 @@ def DEFAULT_MIN_SDK_VERSION = 21
 def DEFAULT_TARGET_SDK_VERSION = 30
 def DEFAULT_NDK_VERSION = '23.1.7779620'
 
-
 def safeExtGet(prop, fallback) {
     rootProject.ext.has(prop) ? rootProject.ext.get(prop) : fallback
 }
@@ -62,6 +47,22 @@ def cpp_distribution = (REACT_VERSION >= 71) ? "c++_shared" : "c++_static";
 def BABYLON_NATIVE_PLUGIN_NATIVECAMERA = System.getenv("BABYLON_NATIVE_PLUGIN_NATIVECAMERA") != "0"
 def BABYLON_NATIVE_PLUGIN_NATIVEXR = System.getenv("BABYLON_NATIVE_PLUGIN_NATIVEXR") != "0"
 
+buildscript {
+    // The Android Gradle plugin is only required when opening the android folder stand-alone.
+    // This avoids unnecessary downloads and potential conflicts when the library is included as a
+    // module dependency in an application project.
+    // ref: https://docs.gradle.org/current/userguide/tutorial_using_tasks.html#sec:build_script_external_dependencies
+    if (project == rootProject) {
+        repositories {
+            google()
+            mavenCentral()
+        }
+        dependencies {
+            classpath 'com.android.tools.build:gradle:7.2.2'
+        }
+    }
+}
+
 def graphics_api = safeExtGet('GRAPHICS_API', "OpenGL")
 
 apply plugin: 'com.android.library'
@@ -147,16 +148,13 @@ android {
 }
 
 repositories {
-    maven {
-        // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
-        url("$rootDir/../node_modules/react-native/android")
-    }
-    mavenCentral()
     google()
+    mavenCentral()
 }
 
 dependencies {
-    implementation ("com.facebook.react:react-android:+")
+    //noinspection GradleDynamicVersion
+    implementation 'com.facebook.react:react-native:+'  // From node_modules
     implementation fileTree(dir: "libs", include: ["*.jar"])
     implementation 'com.google.ar:core:1.22.0'
     implementation 'com.facebook.fbjni:fbjni:0.3.0'