How to use camera_screen.dart and camera.dart to capture image and upload to firebase storage in flutter? Ho can I go back to my place holder and circular avatar and place the captured image there

How to use camera_screen.dart and camera.dart to capture image and upload to firebase storage in flutter? Ho can I go back to my place holder and circular avatar and place the captured image there

I dont want to use image picker as there is a much chance of App crash everytime