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invalidateOptionsMenu() not working

i want to update notification count badge on my android apps every time new notification receive from one signal notification class. the flow is, anytime new notification receive, i will save the count to sharedpreference. its already done and everytime notification receive, the count badge will be updated, problem is to update the icon in toolbar is using invalidate option menu.
So i make this method in my MainActivity class

public void updateNotif()
HashMap<String, Integer> notif = notif_count.getCount();
count = notif.get(NotifCountSession.KEY_COUNT);
Log.e(MainActivity.class.getSimpleName(), "COUNT : "+count);
invalidateOptionsMenu();



and then i call it inside OneSignal notification class like below

public class Notification implements OneSignal.NotificationReceivedHandler

private NotifCountSession session;

private Application app;
private int count;
public Notification(Application app)
this.app = app;


@Override
public void notificationReceived(OSNotification notification)

init();
count++;
session.saveCount(count);
//this code works
Log.e(MainActivity.class.getSimpleName(), "COUNT NOTIF : "+count);
//but this one not
new MainActivity().updateNotif();


private void init()
session = new NotifCountSession(app);
HashMap<String, Integer> notif = session.getCount();
count = notif.get(session.KEY_COUNT);




below is my notification count badge

how to solve this problem ?

new MainActivity().updateNotif()

Activity

1 Answer
1

Follow these step to update from notification.

1) Add in your MainActivity

private BroadcastReceiver mMyBroadcastReceiver;


Then ,

2) In onResume

@Override
protected void onResume()
super.onResume();
mMyBroadcastReceiver = new BroadcastReceiver()
@Override
public void onReceive(Context context, Intent intent)
updateNotif();

;
try
LocalBroadcastManager.getInstance(this).registerReceiver(mMyBroadcastReceiver, new IntentFilter("your_action"));
catch (Exception e)
e.printStackTrace();




// and your other code

3) Then unregister in onPause

@Override
protected void onPause()
super.onPause();


LocalBroadcastManager.getInstance(this).unregisterReceiver(mMyBroadcastReceiver);



4) Finally in your notificationReceived method

notificationReceived

Intent intent = new Intent("your_action");
LocalBroadcastManager localBroadcastManager =LocalBroadcastManager.getInstance(this);
localBroadcastManager.sendBroadcast(intent);


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