Added some simple text file operations from the UI you can do a test to
write a file.  This is just experimentation, but it successfully creates a
directory called "WifiDirect_Demo_Dir" in the "Downloads" directory, and
then creates a textfile in this directory called "myTestFile.txt". The
text file is populated with the string from the Edit Text field on the UI.
The view text field was being used to view debug status.