Support setFullScreenIntent for notifications in Android
In AndroidQ, because of restrictions on starting activities from the background https://developer.android.com/guide/components/activities/background-starts So when the app's screen turn off( lock screen mode ) we can only show our activity via notification that have setFullScreenIntent action. But setFullScreenIntent is not supported yet so no way we can display app when receiving notification in lock screen
Get a list of all notifications
Get an array of all notifications that were not open exemple: firebase .notifications() .getAllNotifications => 
Turn off notification on demand.
I want to turn off the notification from my application command but we don't have ant feature like this. Even firebase.messaging().requestPermission() is not revoking again if user already has permission. Do whatever is possible.
In Android, we can create a custom view from scratch and set it for notification view. is that possible using react-native-firebase? if yes, how can I achieve it, if no, is there any milestone to support it in near future? I'm not familiar with IOS development too much, is that possible such feature for IOS too?