startActivity not working when calling from BroadcastReceiver

Question

I have a notification and when I select, it sends a Broadcast to a BroadcastReceiver using a PendingIntent. In the onReceive I start a new Activity.

However, if I remove my app from recent apps opened (or the notification sit in the draw for a long time) this scenario occurs:

When I have multiple notifications in the drawer the first one opens great. After tapping on the second one my onCreate() nor my onResume() are being called and its as if the startActivity() is not working at all. If I add the flag Intent.FLAG_ACTIVITY_SINGLE_TOP then onNewIntent is being called.

notificationIntent = new Intent();
notificationIntent.setAction(AppConstants.ACTION_ACTIVITY);
notificationIntent.putExtra("key", value);
int requestID = (int) System.currentTimeMillis();

mBuilder.setContentIntent(PendingIntent
                    .getBroadcast(context, requestID, notificationIntent, 
                                  PendingIntent.FLAG_UPDATE_CURRENT));

onReceive

  Intent intent = new Intent(context, Activity.class);
  intent.putExtra("key", value);
  //IF I ADD FLAG_ACTIVITY_SINGLE_TOP IT WORKS
  intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  context.startActivity(intent);

Answer 1

Try using flags as follows for the intent.

intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_MULTIPLE_TASK);

And for Pending intent use PendingIntent.FLAG_UPDATE_CURRENT

Answer 2

in order to start activity from BroadcastReciever you should add flag of FLAG_ACTIVITY_NEW_TASK

 Intent imap =new Intent(context,MainActivity.class);
                  imap.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                  context.startActivity(imap);