Hi I want to select file/image from the device how to do it?

https://www.google.com/search?q=app+inventor+image+picker&rlz=1C1CHBF_enUS887US887&oq=app+inventor+image+picker&aqs=chrome..69i57j69i64j69i60.8046j0j7&sourceid=chrome&ie=UTF-8