public void ShowTaskReminderNotification(TaskReminderNotification notification) { //we create the pending intent when the user clicks the notification... var action = new NotificationAction { Action = NotificationActionType.OPEN_TASK, TaskId = notification.TaskId, TaskListId = notification.TaskListId }; var clickIntent = MainActivity.CreateIntent( notification.Id, MainActivity.InitParamsKey, JsonConvert.SerializeObject(action)); var pendingIntent = TaskStackBuilder.Create(Application.Context) .AddNextIntent(clickIntent) .GetPendingIntent(1, (int)PendingIntentFlags.UpdateCurrent); var localNotification = new TaskNotification { LargeContent = $"{notification.TaskTitle}{System.Environment.NewLine}" + $"{notification.TaskBody}", Title = notification.TaskListTitle, Id = notification.Id }; var builder = BuildSimpleNotification(localNotification); builder.SetContentIntent(pendingIntent); //we create the pending intent when the user clicks the mark as completed button... var mcIntent = MarkTaskAsCompletedReceiver.CreateIntent( notification.Id, MarkTaskAsCompletedReceiver.MarkTaskAsCompletedKey, JsonConvert.SerializeObject(notification)); var mcPendingIntent = PendingIntent.GetBroadcast( Application.Context, 0, mcIntent, 0); string title = _textProvider.Get("MarkTaskAs", _textProvider.Get("Completed")); builder.AddAction(Resource.Drawable.ic_check_white_48dp, title, mcPendingIntent); var notif = builder.Build(); NotifManager.Notify(notification.Id, notif); }