How can i ask for multpile MIME types with ActivityResultLauncher.GetContent()?

I'm trying to retrive from the user a file that can be both image or a pdf, using

registerForActivityResult(ActivityResultContracts.GetContent()) { file: Uri ->
   ......
}.launch(<mimetypes>)

I've already tried "image/*|application/pdf" from another question's answer but it didn't work, is there any way to ask for multiple MIME types when using registerForActivityResult ?

is there any way to ask for multiple MIME types when using registerForActivityResult ?

Not directly with the current version of ActivityResultContracts.GetContent. However, you should be able to subclass it, override createIntent(), and from there customize the generated Intent. You can then try adding EXTRA_MIME_TYPES to that Intent with a String[] of the additional MIME types that you want.