How to Recover Extras from a Pendingintent (Android)?

Question

I’m implementing Notifications in an app.

I’m using Alarmmanager with a Pendingintent of an Intent with data (in Extras, some model objects) but when I receive them in another Broadcastreceiver class, those extras aren’t there.

here is the code:

Mainactivity

private void saveNotification(Tarefa tarefa) {
    Intent intent = new Intent(this, MyAlarmBroadcastReceiver.class);
    intent.putExtra("tarefa", tarefa); 
    // intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP); - tentei usar essas flags, mas não funcionou
    PendingIntent pendingIntent = PendingIntent.getBroadcast(this.getApplicationContext(), 12345678, intent,PendingIntent.FLAG_UPDATE_CURRENT);
    AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
    alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (5 * 1000), pendingIntent);
    Toast.makeText(this, "setting the notification in 5 seconds", Toast.LENGTH_SHORT).show();
}

Myalarmbroadcastreceiver:

public class MyAlarmBroadcastReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Bundle bundle = intent.getExtras(); 
        Tarefa tarefa = (Tarefa) b.getSerializable("tarefa");
        startNotification(context, taskTitle , taskText );
    }
}

My guess is that when I get an Indtent in the onReceive method, this Indtent is not necessarily the one that was previously sent in the saveNotification method, my question is how to recover that data from the right Intent.

EDIT

I’m trying to send an object Tarefa which implements the Serializable class, but the object returns null by flinging the Nullpointerexception. I fixed the above code.

They asked about the Androidmanifest.xml if I had included a receiver, follow code:

<receiver android:name=".receiver.MyAlarmBroadcastReceiver ">
    <intent-filter>
        <category android:name="android.intent.category.DEFAULT" />
    </intent-filter>
</receiver> 

From now on, thank you.