Экспорт файла базы данных Sqlite

Question

Я пытаюсь экспортировать данные базы данных Sqlite и сохранить их в памяти телефона

Метод экспорта

public void exportNewReadingData()
    {
        db = new DatabaseHelper(getApplicationContext());
        File exportDir =new File(String.valueOf(Environment.getExternalStorageDirectory()));
        if(!exportDir.exists())
        {
            exportDir.mkdirs();
        }
        File ReadingFile = new File(exportDir, "'" + this.route + "'U.txt");
        try
        {
            ReadingFile.createNewFile();
            CSVWriter csvwriter = new CSVWriter(new FileWriter(String.valueOf(ReadingFile)));
            SQLiteDatabase sqLiteDatabase = db.getReadableDatabase();
            Cursor cursor = sqLiteDatabase.rawQuery("SELECT * FROM toPrintBill", null);
            while (cursor.moveToNext())
            {
                String arrstr[] = {"2", cursor.getString(0), padLeft(cursor.getString(33), 10), padLeft(cursor.getString(35),8), padLeft(cursor.getString(5), 3), padLeft(cursor.getString(34), 12), padLeft(cursor.getString(8), 10), padLeft(cursor.getString(7), 4), padLeft(cursor.getString(6), 8)};
                csvwriter.writeNext(arrstr);
            }
            csvwriter.close();
            cursor.close();
        }
        catch (Exception e)
        {
            Log.e("RecordedBill", e.getMessage(), e);
        }
    }

Класс CSVWriter

public class CSVWriter
{
    private PrintWriter pw;

    private char separator;

    private char quotechar;

    private char escapechar;

    private String lineEnd;

    /** The character used for escaping quotes. */
    public static final char DEFAULT_ESCAPE_CHARACTER = ' ';

    /** The default separator to use if none is supplied to the constructor. */
    public static final char DEFAULT_SEPARATOR = ',';

    /**
     * The default quote character to use if none is supplied to the
     * constructor.
     */
    public static final char DEFAULT_QUOTE_CHARACTER = ' ';

    /** The quote constant to use when you wish to suppress all quoting. */
    public static final char NO_QUOTE_CHARACTER = '\u0000';

    /** The escape constant to use when you wish to suppress all escaping. */
    public static final char NO_ESCAPE_CHARACTER = '\u0000';

    /** Default line terminator uses platform encoding. */
    public static final String DEFAULT_LINE_END = "\n";

    /**
     * Constructs CSVWriter using a comma for the separator.
     *
     * @param writer
     *            the writer to an underlying CSV source.
     */
    public CSVWriter(Writer writer) {
        this(writer, DEFAULT_SEPARATOR, DEFAULT_QUOTE_CHARACTER,
                DEFAULT_ESCAPE_CHARACTER, DEFAULT_LINE_END);
    }

    /**
     * Constructs CSVWriter with supplied separator, quote char, escape char and line ending.
     *
     * @param writer
     *            the writer to an underlying CSV source.
     * @param separator
     *            the delimiter to use for separating entries
     * @param quotechar
     *            the character to use for quoted elements
     * @param escapechar
     *            the character to use for escaping quotechars or escapechars
     * @param lineEnd
     *            the line feed terminator to use
     */
    public CSVWriter(Writer writer, char separator, char quotechar, char escapechar, String lineEnd) {
        this.pw = new PrintWriter(writer);
        this.separator = separator;
        this.quotechar = quotechar;
        this.escapechar = escapechar;
        this.lineEnd = lineEnd;
    }

    /**
     * Writes the next line to the file.
     *
     * @param nextLine
     *            a string array with each comma-separated element as a separate
     *            entry.
     */
    public void writeNext(String[] nextLine) {

        if (nextLine == null)
            return;

        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < nextLine.length; i++) {

            if (i != 0) {
                sb.append(separator);
            }

            String nextElement = nextLine[i];
            if (nextElement == null)
                continue;
            if (quotechar !=  NO_QUOTE_CHARACTER)
                sb.append(quotechar);
            for (int j = 0; j < nextElement.length(); j++) {
                char nextChar = nextElement.charAt(j);
                if (escapechar != NO_ESCAPE_CHARACTER && nextChar == quotechar) {
                    sb.append(escapechar).append(nextChar);
                } else if (escapechar != NO_ESCAPE_CHARACTER && nextChar == escapechar) {
                    sb.append(escapechar).append(nextChar);
                } else {
                    sb.append(nextChar);
                }
            }
            if (quotechar != NO_QUOTE_CHARACTER)
                sb.append(quotechar);
        }

        sb.append(lineEnd);
        pw.write(sb.toString());

    }

    /**
     * Flush underlying stream to writer.
     *
     * @throws IOException if bad things happen
     */
    public void flush() throws IOException {

        pw.flush();

    }

    /**
     * Close the underlying stream writer flushing any buffered content.
     *
     * @throws IOException if bad things happen
     *
     */
    public void close() throws IOException {
        pw.flush();
        pw.close();
    }
}

Манифест

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

E/RecordedBill: Permission denied
    java.io.IOException: Permission denied
        at java.io.UnixFileSystem.createFileExclusively0(Native Method)
        at java.io.UnixFileSystem.createFileExclusively(UnixFileSystem.java:281)
        at java.io.File.createNewFile(File.java:1005)
        at com.vicjames.qiimeterreader.RecordedBill.exportNewReadingData(RecordedBill.java:121)
        at com.vicjames.qiimeterreader.RecordedBill$1$1.onClick(RecordedBill.java:64)
        at androidx.appcompat.app.AlertController$ButtonHandler.handleMessage(AlertController.java:167)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:202)
        at android.app.ActivityThread.main(ActivityThread.java:6962)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:528)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:888)

Приложение не обрабатывает sh, но показывает ошибку, что разрешение отклонено, даже если я использую разрешение для запись внешнего хранилища в манифест.

Что мне здесь не хватает?

ReadingFile.createNewFile(); выдает сообщение Результат "File.createNewFile" игнорируется