Android 12: Set flag PendingIntent.FLAG_IMMUTABLE (fix regression from #413)

Author: scaires

iterableapi/src/main/java/com/iterable/iterableapi/IterableNotificationBuilder.java

@@ -119,7 +119,7 @@ public void createNotificationActionButton(Context context, IterableNotification
         buttonIntent.putExtra(IterableConstants.ACTION_IDENTIFIER, button.identifier);
 
         PendingIntent pendingButtonIntent = PendingIntent.getBroadcast(context, buttonIntent.hashCode(),
-                buttonIntent, PendingIntent.FLAG_UPDATE_CURRENT);
+                buttonIntent, PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE);
 
         NotificationCompat.Action.Builder actionBuilder = new NotificationCompat.Action
                 .Builder(NotificationCompat.BADGE_ICON_NONE, button.title, pendingButtonIntent);

iterableapi/src/main/java/com/iterable/iterableapi/IterableNotificationHelper.java

@@ -193,7 +193,7 @@ public IterableNotificationBuilder createNotification(Context context, Bundle ex
             }
 
             PendingIntent notificationClickedIntent = PendingIntent.getBroadcast(context, notificationBuilder.requestCode,
-                    pushContentIntent, PendingIntent.FLAG_UPDATE_CURRENT);
+                    pushContentIntent, PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE);
 
             notificationBuilder.setContentIntent(notificationClickedIntent);
             notificationBuilder.setIsGhostPush(isGhostPush(extras));