how to create a file with world readable permission under subdirectory of files directory

Question

I need to create files under myapp/files/subdir with global permission in my application. I do this because I use external applications to open some files Using this

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Answer 1

One workaround I used in the past was to re-open the already existing file using openFileOutput in append mode, and pass in the world readable and/or world writable flags during that time. Then immediately close the file without writing to it.

I like the new methods added in API 9 better though.