Added MIME type filter to FileChooserActivity and company.

[alenz316]

Disables and grays out file entries that do not match the MIME type defined in the original intent type. FileUtils.compareMimeTypes from Android source code (ClipDescription.java).

[alainpimentel]

I have been looking in the library, but I can't a function that does this. Currently I hardcoded the type MIME_TYPE_VIDEO in FileUtils.createContentIntent(), but did you write a function that does this or is hardcoding the file type want the only way to do it?

This is a great library BTW!

[alenz316]

Sorry for taking so long to respond. You should be able to just set the MIME type on the intent you use to launch the file chooser.

intent.setType(DESIRED_MIME_TYPE);

[alainpimentel]

Thank you for the answer. your library helped me a lot