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Android get output file by USB

  • Good day!
    I would like to create output file, that users can get this file via USB. (all devices including devices without sdcard)
    First of all, file was created in /storage/emulated/0. I can't get this directory via USB 0_1526225112411_9e782de9-7e0c-40c0-ae76-69d9a0902d09-image.png
    Secondly, if I touch to update in "Files"
    I can see this file via USB. (I think that it move from emulated storage)
    If i change existing file, changes don't apply. I must repeat the previous steps

    How can I create output file on device without external storage?

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