How to get call information after every incoming/outgoing call in the Xamarin Android?

I would like to receive call details such as number, name (if saved in contacts), dialed/received number, call duration, received/dialed date and time after every incoming and outgoing call.

I have created a phone call watcher class subscribed to base class BroadcastReceiver like below:

using Android.App;
using Android.Content;
using Android.Telephony;

[BroadcastReceiver()]
[IntentFilter(new[] { "android.intent.action.PHONE_STATE", "android.intent.action.NEW_OUTGOING_CALL" }, Priority = (int)IntentFilterPriority.HighPriority)]
public class PhoneCallWatcher : BroadcastReceiver
{
    public override void OnReceive(Context context, Intent intent)
    {
        // ensure there is information
        if (intent.Extras != null)
        {
            if (intent.Action.Equals(Intent.ActionNewOutgoingCall))
            {
                //outgoing call
            }

            // get the incoming call state
            string state = intent.GetStringExtra(TelephonyManager.ExtraState);

            // check the current state
            if (state == TelephonyManager.ExtraStateRinging)
            {
                // read the incoming call telephone number...
                string telephone = intent.GetStringExtra(TelephonyManager.ExtraIncomingNumber);
                // check the reade telephone
                if (string.IsNullOrEmpty(telephone))
                    telephone = string.Empty;
            }
            else if (state == TelephonyManager.ExtraStateOffhook)
            {
                // incoming call answer
            }
            else if (state == TelephonyManager.ExtraStateIdle)
            {
                // incoming call end
            }
        }
    }
}

and registering above service in MainActivity.cs like below:

//starting phone call watcher service
var phoneCallWatcherIntent = new Intent(ApplicationContext, typeof(PhoneCallWatcher));
SendBroadcast(phoneCallWatcherIntent);

But the above code is not working when I make an outgoing call and receive an incoming call. Please help!