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Editorial Team
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Asked: 2026-05-27T18:26:13+00:00

My application does file operations on the SD card (delete or update file). But

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My application does file operations on the SD card (delete or update file).
But when I connect the device to Windows 7 through USB, I do not see any changes. However I can confirm files where updated or deleted with adb shell.

I use an ASUS eee Pad with Android 3.0.

It seems devices running Android 3.0 have a different way to provide access to the file system (MTP instead of USB Mass Storage). I also read about how we can use MediaScannerConnection.scanFile to refresh the content of Windows File Explorer when adding a new file.

But how to trigger a refresh when files are deleted or updated?

I tried MediaScannerConnection.scanFile on the deleted file but it only creates an entry with size 0. MediaScannerConnection.scanFile on the whole folder does not work either.

Thank you for your help.

G.

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1 Answer

  1. Editorial Team

    So, as mentioned in the comment before. For now the best I’ve found is

    sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED,
Uri.parse("file://" + Environment.getExternalStorageDirectory())));

    After a file was deleted or updated seems to work.

    However, the device must be disconnected from USB. Otherwise you need to unplug and replug the device to see the changes.

    NOTE:
    On some devices this may trigger a onResume event on the current activity.

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