compatible for android 12 within leancloud push notification

Author: jwfing

android-sdk/leancloud-push-lite/src/main/java/cn/leancloud/push/lite/AVNotificationManager.java

@@ -283,7 +283,8 @@ private void sendNotification(String from, String msg, Intent resultIntent) {
       ComponentName cn = new ComponentName(context, clsName);
       resultIntent.setComponent(cn);
       PendingIntent contentIntent =
-          PendingIntent.getActivity(context, notificationId, resultIntent, 0);
+          PendingIntent.getActivity(context, notificationId, resultIntent,
+                                    PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE);
       String sound = getSound(msg);
       Notification notification = null;
       if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.N_MR1) {

android-sdk/realtime-android/src/main/java/cn/leancloud/push/AndroidNotificationManager.java

@@ -94,7 +94,8 @@ private void sendNotification(String from, String msg, Intent resultIntent) {
       ComponentName cn = new ComponentName(context, clsName);
       resultIntent.setComponent(cn);
       PendingIntent contentIntent =
-          PendingIntent.getActivity(context, notificationId, resultIntent, 0);
+          PendingIntent.getActivity(context, notificationId, resultIntent,
+                  PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE);
       String sound = getSound(msg);
       String title = getTitle(msg);
       String notificationChannel = getNotificationChannel(msg);