Apisynctask.java to go with activity.java

public class ApiAsyncTask extends AsyncTask<Void, Void, Void> {
    private BlockOrderGCalDaily mActivity;

    /**
     * Constructor.
     * @param activity MainActivity that spawned this task.
     */
    ApiAsyncTask(BlockOrderGCalDaily activity) {
        this.mActivity = activity;
    }

    /**
     * Background task to call Google Calendar API.
     * @param params no parameters needed for this task.
     */
    @Override
    protected Void doInBackground(Void... params) {
        try {
            mActivity.clearResultsText();
            mActivity.updateResultsText(getDataFromApi());

        } catch (final GooglePlayServicesAvailabilityIOException availabilityException) {
            mActivity.showGooglePlayServicesAvailabilityErrorDialog(
                    availabilityException.getConnectionStatusCode());

        } catch (UserRecoverableAuthIOException userRecoverableException) {
            mActivity.startActivityForResult(
                    userRecoverableException.getIntent(),
                    BlockOrderGCalDaily.REQUEST_AUTHORIZATION);

        } catch (IOException e) {
            mActivity.updateStatus("The following error occurred: " +
                    e.getMessage());
        }
        return null;
    }

    /**
     * Fetch a list of the next 10 events from the primary calendar.
     * @return List of Strings describing returned events.
     * @throws IOException
     */
    private List<String> getDataFromApi() throws IOException {
        // List the next 10 events from the primary calendar.
        DateTime now = new DateTime(System.currentTimeMillis());
        List<String> eventStrings = new ArrayList<String>();
        Events events = mActivity.mService.events().list("9sfoekroead5j1sb8aduqgvog4@group.calendar.google.com")
                .setMaxResults(1)
                .setTimeMin(now)
                .setOrderBy("startTime")
                .setSingleEvents(true)
                .execute();
        List<Event> items = events.getItems();

        for (Event event : items) {
            DateTime start = event.getStart().getDateTime();
            if (start == null) {
                // All-day events don't have start times, so just use
                // the start date.
                start = event.getStart().getDate();
            }
            eventStrings.add(
                    String.format("%s", event.getSummary()));
        }
        return eventStrings;
    }

}