java - 使用 AlarmManager 设置一些通知并取消其中之一

Question

在我的程序中，我设置了带有字符串及其时钟的通知，以在其时钟处获取带有该字符串的通知。(我的意思是用户希望在要求的时间收到带有字符串的通知，并且用户给了我很多字符串和他们的时钟。)如果用户想取消该通知，我不知道该怎么做。

我尝试了alarmManager.cancel(pendingIntent)，但我想取消唯一的一个通知，而不是全部。此外，它也不会取消任何通知。

这里是main中的代码

public void gecikmeliGoster(String plan, int yil, int ay, int gun, String saat){

        NotificationCompat.Builder builder;

        NotificationManager bildirimYoneticisi = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

        Intent ıntent = new Intent(HatirlaticiKur.this, AlarmReciever.class);

        PendingIntent gidilecekIntent = PendingIntent.getActivity(this, 1, ıntent, PendingIntent.FLAG_UPDATE_CURRENT);


        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            String kanalId = "kanalId";
            String kanalAd = "kanalAd";
            String kanalTanım = "kanalTanım";
            int kanalOnceligi = NotificationManager.IMPORTANCE_HIGH;

            NotificationChannel kanal = bildirimYoneticisi.getNotificationChannel(kanalId);

            if (kanal == null) {
                kanal = new NotificationChannel(kanalId, kanalAd, kanalOnceligi);
                kanal.setDescription(kanalTanım);
                bildirimYoneticisi.createNotificationChannel(kanal);
            }

            builder = new NotificationCompat.Builder(this, kanalId);

            builder.setContentTitle("Hatırlatıcı")
                    .setContentText(plan)
                    .setSmallIcon(R.drawable.hatirlatici)
                    .setAutoCancel(true)
                    .setContentIntent(gidilecekIntent);
        } else {

            builder = new NotificationCompat.Builder(this);

            builder.setContentTitle("Hatırlatıcı")
                    .setContentText(plan)
                    .setSmallIcon(R.drawable.hatirlatici)
                    .setContentIntent(gidilecekIntent)
                    .setAutoCancel(true)
                    .setPriority(Notification.PRIORITY_HIGH);
        }
        Intent broadcastIntent = new Intent(HatirlaticiKur.this, AlarmReciever.class);

        broadcastIntent.putExtra("nesne", builder.build());

        PendingIntent gidilecekBroadcast = PendingIntent.getBroadcast(this, 0, broadcastIntent, PendingIntent.FLAG_UPDATE_CURRENT);

        //long gecikme = SystemClock.elapsedRealtime() + 5000; //bu 5 saniyede bir bildirim gelmesi için falan
        String[] noktasiz = saat.split(":");
        int akrep = Integer.parseInt(noktasiz[0]);
        int yelkovan = Integer.parseInt(noktasiz[1]);

        Calendar calendar = Calendar.getInstance();
        calendar.setTimeInMillis(System.currentTimeMillis());
        calendar.set(Calendar.YEAR, yil);
        calendar.set(Calendar.MONTH, ay);
        calendar.set(Calendar.DATE, gun);
        calendar.set(Calendar.HOUR_OF_DAY, akrep);
        calendar.set(Calendar.MINUTE, yelkovan);
        calendar.set(Calendar.SECOND, 0);

        AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

        alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 0, gidilecekBroadcast);

}

这是 AlarmReceiver 中的代码

public class AlarmReciever extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {

    NotificationManager bildirimYoneticisi = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

    Notification bildirim = intent.getParcelableExtra("nesne");

    bildirimYoneticisi.notify(1,bildirim);

}



}

我想取消要求通知，我将感谢您的帮助

Answer 1

使用已使用的 0 id 设置警报

 PendingIntent gidilecekBroadcast = PendingIntent.getBroadcast(this, 0, broadcastIntent, PendingIntent.FLAG_UPDATE_CURRENT);

使用 Alarmmanager 设置的所有通知都需要唯一 ID然后根据uniqueid你可以取消闹钟

PendingIntent gidilecekBroadcast  = 
PendingIntent.getBroadcast(getApplicationContext(), uniqueid , broadcastIntent, 
PendingIntent.FLAG_UPDATE_CURRENT)
alarmManager.cancel(gidilecekBroadcast);