calling promptForPushPermissions in the Android plugin

Author: emawby

android/src/main/java/com/onesignal/flutter/OneSignalPlugin.java

@@ -278,7 +278,8 @@ private void userProvidedPrivacyConsent(MethodCall call, Result reply) {
   }
 
   private void promptPermission(MethodCall call, Result result) {
-    OneSignal.onesignalLog(OneSignal.LOG_LEVEL.ERROR, "promptPermission() is not applicable in Android");
+    boolean fallback = call.argument("fallback");
+    OneSignal.promptForPushNotifications(fallback);
     replySuccess(result, null);
   }
 

lib/onesignal_flutter.dart

@@ -213,8 +213,9 @@ class OneSignal {
     return val as bool;
   }
 
-  /// in iOS, will prompt the user for permission to send push notifications.
-  //  in Android, it will always return false, since notification permission is by default given
+  // in iOS and Android 13+, will prompt the user for permission to send push notifications.
+  //  in lower Android versions it will always return false, since notification
+  //  permission is by default given
   Future<bool> promptUserForPushNotificationPermission(
       {bool fallbackToSettings = false}) async {
     dynamic result = await _channel.invokeMethod(