public Builder setAutoCancel(boolean autoCancel) {
            setFlag(Notification.FLAG_AUTO_CANCEL, autoCancel);
            return this;
        }
Setting this flag will make it so the notification is automatically
canceled when the user clicks it in the panel.  The PendingIntent
set with {@link #setDeleteIntent} will be broadcast when the notification
is canceled.
android/android_framework/base/src/main/java/github/tornaco/android/thanos/core/compat/NotificationCompat.java