如何在应用程序退出后在android中安排通知？

Question

我正在开发一个应用程序，其中通知必须在一段时间后触发。触发通知的代码在方法中。我想在退出应用程序一段时间后执行此方法。我试过Alarm Manager，它运行正常，但它需要一个意图。我不想展示活动，我只想在状态栏中显示通知。有没有其他方法可以做到这一点？我想要运行的方法是 fireNotification 。使用Alarm Manager似乎是合乎逻辑的，但它可以触发Intent而不是方法。当应用程序未运行时，我需要一些方法来运行此方法。

private void fireNotification(long Id, String Title)
{

    //Define sound URI
    Uri soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);


    NotificationCompat.Builder mBuilder =
            new NotificationCompat.Builder(this)
                    .setSmallIcon(R.mipmap.ic_launcher)
                    .setContentTitle(Title)
                    .setContentText("Tap here to view")
                    .setSound(soundUri)
                    .setAutoCancel(true);




    Intent resultIntent = new Intent(this, ViewActivity.class);
    resultIntent.putExtra("noteId", noteId);

    TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
    // Adds the back stack

    stackBuilder.addParentStack(ViewNoteActivity.class);
    // Adds the Intent to the top of the stack

    stackBuilder.addNextIntent(resultIntent);
    // Gets a PendingIntent containing the entire back stack


    PendingIntent resultPendingIntent =
            stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);

    mBuilder.setContentIntent(resultPendingIntent);



    // Sets an ID for the notification
    int mNotificationId = safeLongToInt(safeLongToInt(Id));
    // Gets an instance of the NotificationManager service
    NotificationManager mNotifyMgr =
            (NotificationManager) getSystemService(NOTIFICATION_SERVICE);




    // Builds the notification and issues it.
    mNotifyMgr.notify(mNotificationId, mBuilder.build());
}



public static int safeLongToInt(long l) {
    if (l < Integer.MIN_VALUE || l > Integer.MAX_VALUE) {
        throw new IllegalArgumentException
                (l + " cannot be cast to int without changing its value : Notification ID.");
    }
    return (int) l;
}