AlarmReceiver how to cancel notification?

Question

Android

Dates and task names are taken from the database, and notifications are set by time. But if the task is deleted or the status is changed, etc., i.e. in situations where the alert should be canceled, it still fires.
I know about the cancel () method, but I don’t understand where to shove it) Please help ...

public void remind() {
        /* pendingIntent.cancel();
            alarmManager.cancel(pendingIntent);*/

        Calendar cal = Calendar.getInstance();
        Cursor cursorRemind = database.query(DBHelper.TABLE_TASKS, new String[]{DBHelper.KEY_ID, DBHelper.NAME,
                        DBHelper.TIME_REMIND_LONG, DBHelper.IMAGE}, DBHelper.STATUS + "=?" + " and " + DBHelper.TIME_REMIND_LONG
                        + "!=?" + " and " + DBHelper.TIME_REMIND_LONG + ">?",
                new String[]{String.valueOf(RepresTask.statusOn), String.valueOf(""), String.valueOf(cal.getTimeInMillis())},
                null, null, DBHelper.TIME_REMIND_LONG);


        Calendar time = Calendar.getInstance();
        if (cursorRemind.getCount() > 0) {
            while (cursorRemind.moveToNext()) {
                Intent intent = new Intent(getContext(), AlarmReceiver.class);
                intent.putExtra("name", cursorRemind.getString(1));
                intent.putExtra("image", cursorRemind.getInt(3));

                intent.setData(Uri.parse("timer:" + cursorRemind.getInt(0)));

                PendingIntent pendingIntent = PendingIntent.getBroadcast(getContext(), 0, intent,
                        PendingIntent.FLAG_CANCEL_CURRENT);
                //Intent.FLAG_GRANT_READ_URI_PERMISSION
                time.setTimeInMillis(cursorRemind.getLong(2));

                AlarmManager alarmManager = (AlarmManager) getActivity().getSystemService(ALARM_SERVICE);
                alarmManager.cancel(pendingIntent);//
                alarmManager.set(AlarmManager.RTC_WAKEUP, time.getTimeInMillis(), pendingIntent);

                /*Toast mToast = Toast.makeText(
                        getContext(), "Reminders added to the calendar successfully for "
                                + android.text.format.DateFormat.format(
                                "MM/dd/yy h:mm:aa",
                                time.getTimeInMillis()),
                        Toast.LENGTH_LONG);
                mToast.show();*/
            }
        }

        cursorRemind.close();
    }

Here is my BroadcastReceiver

public class AlarmReceiver extends BroadcastReceiver {


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

        Resources res = context.getResources();
        String name = intent.getStringExtra("name");
        int icon = intent.getIntExtra("image",0);
        Intent notificationIntent = new Intent(context, MainActivity.class);

        notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
        PendingIntent contentIntent = PendingIntent.getActivity(context, 0,
                notificationIntent, 0);

        Notification.Builder builder = new Notification.Builder(context);

        builder.setContentIntent(contentIntent)
                .setSmallIcon(icon)
                .setContentTitle("TimeManager")
                .setContentText(name)
                .setLargeIcon(BitmapFactory.decodeResource(res, icon))
                .setDefaults(Notification.DEFAULT_ALL);

        Notification notification = builder.build();
        notification.flags |= Notification.FLAG_AUTO_CANCEL;//Отмена после нажатия на увед

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

        notificationManager.notify(Integer.parseInt(intent.getData().getSchemeSpecificPart()), notification);
    }
}

Answer 1

Here's an Overflow
example in the doc , cancel removes all alarms that match the filterEquals(Intent) filter.
In the description of filterEquals(Intent)
those. to cancel, you need to create an intent the same as for installation. push it into pendingintent and run cancel