Android - 输出Google日历中的事件列表

我会请你帮忙 . 现在我正在编写一个应用程序，它可以从Google日历中获取当前事件 . 但是，当我尝试从多个日历输出事件时，问题就在那里 . 我知道，我做错了什么，但真的，不能解决问题..

public class Main extends Activity {

        //TextView mInfo;
        TextView mEvents;

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);     
            setContentView(R.layout.main);
            //mInfo = (TextView)findViewById(R.id.info);
            mEvents = (TextView)findViewById(R.id.events);

            String[] calendarName = {"Calendar1", "Calendar2", "Calendar3", "Calendar4", "Calendar5"};

            readCalendars(calendarName);
        }

        private void readCalendars(String[] calendarName)
        {
            String[] projection =
                    new String[]{
                            CalendarContract.Calendars._ID,
                            CalendarContract.Calendars.NAME,
                            CalendarContract.Calendars.ACCOUNT_NAME,
                            CalendarContract.Calendars.ACCOUNT_TYPE};
            Cursor calCursor =
                    getContentResolver().
                            query(CalendarContract.Calendars.CONTENT_URI,
                                    projection,
                                    CalendarContract.Calendars.VISIBLE + " = 1",
                                    null,
                                    CalendarContract.Calendars._ID + " ASC");
            long calId = -1;
            //String calendarAccount = "";
            for(int i = 0; i  0)
                {
                    if(cursor.moveToFirst())
                    {
                        do
                        {
                            long eventId = cursor.getLong(3);
                            events += getEventInfo(eventId,cursor.getLong(1),cursor.getLong(2),cursor.getString(4),cursor.getString(5),cursor.getString(6)) + "\n";
                        } while(cursor.moveToNext());
                    }
                }
                mEvents.setText(events);
            }
        }

        @SuppressLint("SimpleDateFormat")
        private String getEventInfo(long eventId,long startTime, long endTime,String description, String location,String title)
        {
                String eventInfo = "";
                {
                    DateFormat df = new SimpleDateFormat("HH:mm");
                    String start = df.format( new Date(startTime));
                    String end = df.format( new Date(endTime));
                    eventInfo = start + "-" + end + " Class: "+ location + "\nLecture: " + title + "\nLecturer: " + description;
                }
            return eventInfo;
        }
    }

试图用循环输出所有事件，但没有帮助 . 如果我传入 calendarName[i] ，其中我是现有日历之一，我得到日历的输出，我要求，但这只是一个日历，但是，例如，我需要输出5个日历 .

试图用ListView做任何事情 - 再次失败 .

希望，你会帮助解决这个问题，或者以某种方式帮助解决它 .