private void setFlag(int mask, boolean value) {
            if (value) {
                mNotification.flags |= mask;
            } else {
                mNotification.flags &= ~mask;
            }
        }
Set the default notification options that will be used.
<p>
The value should be one or more of the following fields combined with
bitwise-or:
{@link Notification#DEFAULT_SOUND}, {@link Notification#DEFAULT_VIBRATE},
{@link Notification#DEFAULT_LIGHTS}.
<p>
For all default values, use {@link Notification#DEFAULT_ALL}.
android/android_framework/base/src/main/java/github/tornaco/android/thanos/core/compat/NotificationCompat.java