如何在单击通知并打开新活动后关闭以前的活动

Intent intent = new Intent(context, NewActivity.class);

intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);

PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

NotificationCompat.Builder builder = new NotificationCompat.Builder(context)
        .setContentTitle("通知标题")
        .setContentText("通知内容")
        .setSmallIcon(R.drawable.notification_icon)
        .setContentIntent(pendingIntent)
        .setAutoCancel(true);