notification catch

This my code is an example of the app template combining: B4XPages 2-page app for targetSdkVersion="34" Autostart Receiver Foreground service with notifications (for example, of FOREGROUND_SERVICE_MEDIA_PLAYBACK type, check the Manifest editor) Where notification of each page allows going to...

How can catch every text notification on Android? Realy I need notification of one App only at moment... But I will filter specific App...! Have anybody Code snippet for this example? p.s. Code can work only on higer version of Android if is harder to make on smaller versions