The issue below was report in 2012, issue 36949180. It was marked as "Obselete".

However, the issue is STILL a problem and it is STILL frequently reported by users (as can be seen by the comments in issue 36949180).

I demand that Google actually takes actions on this. This is an Android-wide problem. I work with end users a lot, for mobile data collection & such. You can't just write in your SOP "well, just restart your phone whenever you need to access data... yes I know, that may mean 10 times a day, but...".

Original text below. Sorry guys, but you can't just get ride of issues without fixing them by marking them "Obselete".

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All phones using MTP instead of USB Mass storage do not properly show the list of files when that phone is connected to a computer using a USB cable. Android apps running on the device also cannot see these files.

This affects files written using Java APIs, but does not appear to affect files written using the C API.

The solution is to reboot the device.

STEPS TO REPRODUCE
- Write to and close a file using Java APIs.
- Do the same thing using C APIs.
- Connect the phone to a Windows computer using MTP.

WHAT HAPPENED
- Files written using Java cannot be viewed by Windows; in fact, they cannot even be viewed by some other Android applications running on the same device! They can be viewed only by the app that created the files, UNTIL the device is restarted.
- Files written using C can be viewed just fine.
- This behavior can be observed with many applications freely available from the marketplace.

EXPECTED BEHAVIOR
- MTP should work like USB Mass storage mode, where there are currently no problems and files are visible right away without a need to restart the device.

Issue 37071807

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