private final String weatherInfoFileName = "weatherInfo";

    private void serializeChannel()
    {
        try
        {
            FileOutputStream fos = weatherAppActivity.openFileOutput(weatherInfoFileName, Context.MODE_PRIVATE);
            ObjectOutputStream os = new ObjectOutputStream(fos);
            os.writeObject(channel);
            os.close();
            fos.close();
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
    }


    private void deserializeChannel()
    {
        try
        {
            FileInputStream fis = weatherAppActivity.openFileInput(weatherInfoFileName);
            ObjectInputStream is = new ObjectInputStream(fis);
            channel = (Channel) is.readObject();
            is.close();
            fis.close();
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }

    public boolean isWeatherInfoInFile()
    {
        File file = new File(weatherInfoFileName);
        return file.exists();
    }