[Résolu] Mettre en œuvre OpenDocument() pour retourner un ParcelFileDescriptor

@Override
public ParcelFileDescriptor openDocument(final String documentId,
                                         final String mode,
                                         CancellationSignal signal) throws
        FileNotFoundException {
    Log.v(TAG, "openDocument, mode: " + mode);


    final File file = getFileForDocId(documentId);

    final boolean isWrite = (mode.indexOf('w') != -1);
    if(isWrite) {

        try {
            Handler handler = new Handler(getContext().getMainLooper());
            return ParcelFileDescriptor.open(file, accessMode, handler,
                        new ParcelFileDescriptor.OnCloseListener() {
                @Override
                public void onClose(IOException e) {


                    Log.i(TAG, "A file with id " +
                    documentId + " has been closed!
                    Time to " +
                    "update the server.");
                }

            });
        } catch (IOException e) {
            throw new FileNotFoundException("Failed to open document with id "
            + documentId + " and mode " + mode);
        }
    } else {
        return ParcelFileDescriptor.open(file, accessMode);
    }
}