Is there a way to extract the extension of the content: uri returned from Action_Send.
I can open the stream to the the content given by the Extra_Stream when Action_Send was received but I need to name the file with proper extension of the file.
Android: Action_Send return Extra_Stream: How to get the extension of the file
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It's not a file. It's a piece of content.
For example, what is the "proper extension" of this Web page? Its URL is
https://stackoverflow.com/questions/41558630/android-action-send-return-extra-stream-how-to-get-the-extension-of-the-file.A
Uriworks the same way. It is an opaque handle to some content. Do not assume that it has a file extension.You can get the MIME type, via
DocumentFile. From there,MimeTypeMapmay be able to suggest a file extension that you can use.