[android-developers] setType is useless for createChooser?

Hi all,

When using Email app to send mail, it should be able to attach any
type of files. But the Email app embedded in SDK can't do this. I try
to modify onAddAttachment() method in
com.android.email.activity.MessageCompose class as following

i.setType(Email.ACCEPTABLE_ATTACHMENT_SEND_TYPES[0]);

to

i.setType("video/*");

or

i.setType("application/*");

and indeed there are some avi, doc, or ptt files in SD card.

But the modification is useless, I can't see any files in the chooser.

Is anyone can give me some suggestions?
Thanks!!

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