permission denied

Hi all, I'm using the camera library to let the user take a photo from its iPhone, as you know when the user grants the permission first time everything works fine, but if he denies it, it never request permission never again, and when the 'cam.takepicture' event is fired it just show black...

i was testing this lib https://www.b4x.com/android/forum/threads/os-metrics-msos-lib-and-osstats-and-getforegroundapp.34954/#content on Android less than 8 is ok, but when I tested it on Android 8 I got this error in line xOSStats.StartStats ** Activity (main) Create, isFirst = true ** **...