getWritableDatabase("key") - 将 SqliteDatabase 迁移到 SqliteCipher 时不起作用

如何解决getWritableDatabase("key") - 将 SqliteDatabase 迁移到 SqliteCipher 时不起作用

// open sqlite Database object and call copy database from asset
public DatabaseManager open() throws sqlException {
        sqliteDatabase.loadLibs(moContext);
        moDatabaseHelper = new DatabaseHelper(moContext);
        String lsEncryptionKey = moContext.getPackageName() + Build.DEVICE;
        moDb = moDatabaseHelper.getWritableDatabase(lsEncryptionKey);
        return this;
}

这是打开数据库的代码。 sqlite转sqliteCipher后，数据库一直是空白的。