public Builder setFullScreenIntent(PendingIntent intent, boolean highPriority) {
            mFullScreenIntent = intent;
            setFlag(FLAG_HIGH_PRIORITY, highPriority);
            return this;
        }
An intent to launch instead of posting the notification to the status bar.
Only for use with extremely high-priority notifications demanding the user's
<strong>immediate</strong> attention, such as an incoming phone call or
alarm clock that the user has explicitly set to a particular time.
If this facility is used for something else, please give the user an option
to turn it off and use a normal notification, as this can be extremely
disruptive.

<p>
On some platforms, the system UI may choose to display a heads-up notification,
instead of launching this intent, while the user is using the device.
</p>

@param intent       The pending intent to launch.
@param highPriority Passing true will cause this notification to be sent
                    even if other notifications are suppressed.
android/android_framework/base/src/main/java/github/tornaco/android/thanos/core/compat/NotificationCompat.java