chore(android/gradle): update namespace handler

android/build.gradle

@@ -24,11 +24,20 @@ def getExtOrDefault(name, defaultValue) {
 }
 
 def isNewArchitectureEnabled() {
-    // To opt-in for the New Architecture, you can either:
-    // - Set `newArchEnabled` to true inside the `gradle.properties` file
-    // - Invoke gradle with `-newArchEnabled=true`
-    // - Set an environment variable `ORG_GRADLE_PROJECT_newArchEnabled=true`
-    return project.hasProperty("newArchEnabled") && project.newArchEnabled == "true"
+    return rootProject.hasProperty("newArchEnabled") && rootProject.getProperty("newArchEnabled") == "true"
+}
+
+def supportsNamespace() {
+  def parsed = com.android.Version.ANDROID_GRADLE_PLUGIN_VERSION.tokenize('.')
+  def major = parsed[0].toInteger()
+  def minor = parsed[1].toInteger()
+
+  // Namespace support was added in 7.3.0
+  if (major == 7 && minor >= 3) {
+    return true
+  }
+
+  return major >= 8
 }
 
 def useExoplayerIMA = safeExtGet("RNVUseExoplayerIMA", false)
@@ -48,7 +57,16 @@ if (isNewArchitectureEnabled()) {
 }
 
 android {
+    if (supportsNamespace()) {
       namespace 'com.brentvatne.react'
+
+      sourceSets {
+        main {
+          manifest.srcFile "src/main/AndroidManifestNew.xml"
+        }
+      }
+    }
+
     compileSdkVersion safeExtGet('compileSdkVersion', 31)
     buildToolsVersion safeExtGet('buildToolsVersion', '30.0.2')
 

android/src/main/AndroidManifestNew.xml

@@ -0,0 +1,2 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+</manifest>