fix(android): fix namespace build error on rn 0.66 (#3309)

Author: mfazekas

README.md

@@ -74,7 +74,7 @@ _See [iOS](ios/install.md) & [Android](android/install.md) setup guide for using
 
 - [node](https://nodejs.org)
 - [npm](https://www.npmjs.com/)
-- [React Native](https://facebook.github.io/react-native/) (0.64+)
+- [React Native](https://facebook.github.io/react-native/) (0.70+, older versions from 0.64+ might or might not work)
 
 
 ## Installation

android/build.gradle

@@ -43,7 +43,11 @@ if (safeExtGet("RNMapboxMapsImpl", defaultMapboxMapsImpl) == "mapbox") {
 }
 
 android {
-    namespace = "com.rnmapbox.rnmbx"
+    def agpVersion = com.android.Version.ANDROID_GRADLE_PLUGIN_VERSION
+    // Check AGP version for backward compatibility reasons
+    if (agpVersion.tokenize('.')[0].toInteger() >= 7) {
+        namespace = "com.rnmapbox.rnmbx"
+    }
     if (safeExtGet("RNMapboxMapsImpl", defaultMapboxMapsImpl) == "maplibre") {
         msg = '@rnmapbox/maps: Maplibre implementation has been removed, set RNMapboxMapsImpl to mapbox- see https://github.com/rnmapbox/maps/wiki/Deprecated-RNMapboxImpl-Maplibre#android'
         logger.error(msg)