上下文未传递到NotificationReceiver(BroadcastReceiver)

我收到一个通知,当我点击它时,它会简单地关闭,应用程序不会重新显示。

这是我的主要活动-

意图putExtra(“消息”,notificationText);

            PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 100, intent, PendingIntent.FLAG_UPDATE_CURRENT);

            AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
            alarmManager.setExact(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);

public class NotificationReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
                | Intent.FLAG_ACTIVITY_SINGLE_TOP);

        String notificationText = intent.getStringExtra("Message");
        //if we want ring on notification then uncomment below line
//        Uri alarmSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);

        PendingIntent pendingIntent = PendingIntent.getActivity(context, 100, intent, PendingIntent.FLAG_UPDATE_CURRENT);

        NotificationCompat.Builder builder = (NotificationCompat.Builder) new NotificationCompat.Builder(context)
                .setContentIntent(pendingIntent)
                .setSmallIcon(R.drawable.rr)
                .setContentTitle("Check your reminders!")
                .setContentText(notificationText)
                .setAutoCancel(true);

        notificationManager.notify(100, builder.build());

    }
}

在我的舱单上我有这个。

<receiver
            android:name=".NotificationReceiver" />

我错过了什么?