Intent filter for files only

Question

in our app, we want to appear in the \"Share via\" menu. So we added this intent-filter to our activity :

Answer 1

we want to appear in the menu for all files, whatever there mime type is

Try a MIME type of */*.

we want to appear only for files. And up to now, if the user wants to share a simple text, as its mime type will be text/plain, our app appears in the menu and we don't want it. We tried to add scheme=file and host="" or "*" and it doesn't work as many app use a scheme=content to share file based content.

Then have two elements, one for a scheme of content and one for a scheme of file.

However, bear in mind that a content scheme does not mean that it is necessarily a file.