Android實現系統日歷同步日程

<uses-permission android:name="android.permission.WRITE_CALENDAR" />
<uses-permission android:name="android.permission.READ_CALENDAR" />

if (ContextCompat.checkSelfPermission(this,
                Manifest.permission.WRITE_CALENDAR) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this,
                    new String[]{Manifest.permission.WRITE_CALENDAR,
                            Manifest.permission.READ_CALENDAR}, 1);
  }

String tipTime = "2021-04-25 12:00";
long start = TimeUtils.stringToLong(tipTime ,"yyyy-MM-dd HH:mm");
        long end = start + 60 * 60 * 1000L;
        LogUtil.d("start:" + start);
        LogUtil.d("end:" + end);
 
        String[] split = tipTime.split(" ");
        String[] dateStr = split[0].split("-");
        int month = Integer.parseInt(dateStr[1]);
        int day = Integer.parseInt(dateStr[2]);
 
        String until = "20221231T235959Z";//截止時間：2022年12月31日23點59分59秒
        String mRule = "";
 
        switch (mRepeatType) {
            case 1://不重復
                mRule = null;
                break;
            case 2://按年重復(每年的某月某日)
                mRule = "FREQ=YEARLY;UNTIL=" + until + ";WKST=SU;BYMONTH=" + month + ";BYMONTHDAY=" + day;
                break;
            case 3://按月重復（每月的某天）
                mRule = "FREQ=MONTHLY;UNTIL=" + until + ";WKST=SU;BYMONTHDAY=" + day;
                break;
            case 4://按周重復
                String date = split[0];
                String week = TimeUtils.getWeek(date);
                switch (week) {
                    case "周日":
                        mRule = "FREQ=WEEKLY;UNTIL=" + until + ";WKST=SU;BYDAY=SU";
                        break;
                    case "周一":
                        mRule = "FREQ=WEEKLY;UNTIL=" + until + ";WKST=SU;BYDAY=MO";
                        break;
                    case "周二":
                        mRule = "FREQ=WEEKLY;UNTIL=" + until + ";WKST=SU;BYDAY=TU";
                        break;
                    case "周三":
                        mRule = "FREQ=WEEKLY;UNTIL=" + until + ";WKST=SU;BYDAY=WE";
                        break;
                    case "周四":
                        mRule = "FREQ=WEEKLY;UNTIL=" + until + ";WKST=SU;BYDAY=TH";
                        break;
                    case "周五":
                        mRule = "FREQ=WEEKLY;UNTIL=" + until + ";WKST=SU;BYDAY=FR";
                        break;
                    case "周六":
                        mRule = "FREQ=WEEKLY;UNTIL=" + until + ";WKST=SU;BYDAY=SA";
                        break;
                }
                break;
            case 5://按天（每天）
                mRule = "FREQ=DAILY;UNTIL=" + until;
                break;
            case 6://自定義周幾重復，可多選
                mRule = "FREQ=WEEKLY;UNTIL=" + until + ";WKST=SU;BYDAY=";
                String[] weeks = mSelectedWeekStr.split(",");
                for (int i = 0; i < weeks.length; i++) {
                    if (weeks[i].equals("周日")) {
                        mRule += "SU,";
                    } else if (weeks[i].equals("周一")) {
                        mRule += "MO,";
                    } else if (weeks[i].equals("周二")) {
                        mRule += "TU,";
                    } else if (weeks[i].equals("周三")) {
                        mRule += "WE,";
                    } else if (weeks[i].equals("周四")) {
                        mRule += "TH,";
                    } else if (weeks[i].equals("周五")) {
                        mRule += "FR,";
                    } else if (weeks[i].equals("周六")) {
                        mRule += "SA,";
                    }
                }
                if (mRule.endsWith(",")) {
                    mRule.substring(0, mRule.length() - 1);
                }
                break;
        }
        LogUtil.d("mRule:" + mRule);
 
        CalendarEvent calendarEvent = new CalendarEvent(
                mContent, mContent,
                "",
                start,
                end,
                0, mRule
        );
 
// 添加事件
int addResult = CalendarProviderManager.addCalendarEvent(AddScheduleActivity.this, calendarEvent);
if (addResult == 0) {
        ToastUtil.showShortToast("插入成功");
 } else if (addResult == -1) {
         ToastUtil.showShortToast("插入失敗");
 } else if (addResult == -2) {
         ToastUtil.showShortToast("沒有權限");
 }

public static long stringToLong(String strTime, String formatType) {
        Date date = null; // String類型轉成date類型
        try {
            date = stringToDate(strTime, formatType);
        } catch (Exception e) {
            e.printStackTrace();
        }
        if (date == null) {
            return 0;
        } else {
            long currentTime = dateToLong(date); // date類型轉成long類型
            return currentTime;
        }
    }
 
 
 
    public static Date stringToDate(String strTime, String formatType) {
        SimpleDateFormat formatter = new SimpleDateFormat(formatType);
        Date date = null;
        try {
            date = formatter.parse(strTime);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date;
    }
 
 
 
// date要轉換的date類型的時間
    public static long dateToLong(Date date) {
        return date.getTime();
    }

import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Color;
import android.net.Uri;
import android.os.Build;
import android.provider.CalendarContract;
 
import calendarprovider.Util;
 
import java.util.ArrayList;
import java.util.List;
import java.util.TimeZone;
 
import static com.kyle.calendarprovider.Util.checkContextNull;
 
/**
 * 系統日歷工具
 */
public class CalendarProviderManager {
 
    private static StringBuilder builder = new StringBuilder();
 
 
    /**
     * TIP: 要向系統日歷插入事件,前提系統中必須存在至少1個日歷賬戶
     ** /
 
 
    // ----------------------- 創建日歷賬戶時賬戶名使用 ---------------------------
    private static String CALENDAR_NAME = "TestC";
    private static String CALENDAR_ACCOUNT_NAME = "Test";
    private static String CALENDAR_DISPLAY_NAME = "Test的賬戶";
 
 
    // ------------------------------- 日歷賬戶 -----------------------------------
 
    /**
     * 獲取日歷賬戶ID(若沒有則會自動創建一個)
     *
     * @return success: 日歷賬戶ID  failed : -1  permission deny : -2
     */
    @SuppressWarnings("WeakerAccess")
    public static long obtainCalendarAccountID(Context context) {
        long calID = checkCalendarAccount(context);
        if (calID >= 0) {
            return calID;
        } else {
            return createCalendarAccount(context);
        }
    }
 
    /**
     * 檢查是否存在日歷賬戶
     *
     * @return 存在：日歷賬戶ID  不存在：-1
     */
    private static long checkCalendarAccount(Context context) {
        try (Cursor cursor = context.getContentResolver().query(CalendarContract.Calendars.CONTENT_URI,
                null, null, null, null)) {
            // 不存在日歷賬戶
            if (null == cursor) {
                return -1;
            }
            int count = cursor.getCount();
            // 存在日歷賬戶，獲取第一個賬戶的ID
            if (count > 0) {
                cursor.moveToFirst();
                return cursor.getInt(cursor.getColumnIndex(CalendarContract.Calendars._ID));
            } else {
                return -1;
            }
        }
    }
 
    /**
     * 創建一個新的日歷賬戶
     *
     * @return success：ACCOUNT ID , create failed：-1 , permission deny：-2
     */
    private static long createCalendarAccount(Context context) {
        // 系統日歷表
        Uri uri = CalendarContract.Calendars.CONTENT_URI;
 
        // 要創建的賬戶
        Uri accountUri;
 
        // 開始組裝賬戶數據
        ContentValues account = new ContentValues();
        // 賬戶類型：本地
        // 在添加賬戶時，如果賬戶類型不存在系統中，則可能該新增記錄會被標記為臟數據而被刪除
        // 設置為ACCOUNT_TYPE_LOCAL可以保證在不存在賬戶類型時，該新增數據不會被刪除
        account.put(CalendarContract.Calendars.ACCOUNT_TYPE, CalendarContract.ACCOUNT_TYPE_LOCAL);
        // 日歷在表中的名稱
        account.put(CalendarContract.Calendars.NAME, CALENDAR_NAME);
        // 日歷賬戶的名稱
        account.put(CalendarContract.Calendars.ACCOUNT_NAME, CALENDAR_ACCOUNT_NAME);
        // 賬戶顯示的名稱
        account.put(CalendarContract.Calendars.CALENDAR_DISPLAY_NAME, CALENDAR_DISPLAY_NAME);
        // 日歷的顏色
        account.put(CalendarContract.Calendars.CALENDAR_COLOR, Color.parseColor("#515bd4"));
        // 用戶對此日歷的獲取使用權限等級
        account.put(CalendarContract.Calendars.CALENDAR_ACCESS_LEVEL, CalendarContract.Calendars.CAL_ACCESS_OWNER);
        // 設置此日歷可見
        account.put(CalendarContract.Calendars.VISIBLE, 1);
        // 日歷時區
        account.put(CalendarContract.Calendars.CALENDAR_TIME_ZONE, TimeZone.getDefault().getID());
        // 可以修改日歷時區
        account.put(CalendarContract.Calendars.CAN_MODIFY_TIME_ZONE, 1);
        // 同步此日歷到設備上
        account.put(CalendarContract.Calendars.SYNC_EVENTS, 1);
        // 擁有者的賬戶
        account.put(CalendarContract.Calendars.OWNER_ACCOUNT, CALENDAR_ACCOUNT_NAME);
        // 可以響應事件
        account.put(CalendarContract.Calendars.CAN_ORGANIZER_RESPOND, 1);
        // 單個事件設置的最大的提醒數
        account.put(CalendarContract.Calendars.MAX_REMINDERS, 8);
        // 設置允許提醒的方式
        account.put(CalendarContract.Calendars.ALLOWED_REMINDERS, "0,1,2,3,4");
        // 設置日歷支持的可用性類型
        account.put(CalendarContract.Calendars.ALLOWED_AVAILABILITY, "0,1,2");
        // 設置日歷允許的出席者類型
        account.put(CalendarContract.Calendars.ALLOWED_ATTENDEE_TYPES, "0,1,2");
 
        /**
         *   TIP: 修改或添加ACCOUNT_NAME隻能由SYNC_ADAPTER調用
         *  對uri設置CalendarContract.CALLER_IS_SYNCADAPTER為true,即標記當前操作為SYNC_ADAPTER操作
         *   在設置CalendarContract.CALLER_IS_SYNCADAPTER為true時,必須帶上參數ACCOUNT_NAME和ACCOUNT_TYPE(任意)
         **/
        uri = uri.buildUpon()
                .appendQueryParameter(CalendarContract.CALLER_IS_SYNCADAPTER, "true")
                .appendQueryParameter(CalendarContract.Calendars.ACCOUNT_NAME, CALENDAR_ACCOUNT_NAME)
                .appendQueryParameter(CalendarContract.Calendars.ACCOUNT_TYPE,
                        CalendarContract.Calendars.CALENDAR_LOCATION)
                .build();
 
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            // 檢查日歷權限
            if (PackageManager.PERMISSION_GRANTED == context.checkSelfPermission(
                    "android.permission.WRITE_CALENDAR")) {
                accountUri = context.getContentResolver().insert(uri, account);
            } else {
                return -2;
            }
        } else {
            accountUri = context.getContentResolver().insert(uri, account);
        }
 
        return accountUri == null ? -1 : ContentUris.parseId(accountUri);
    }
 
    /**
     * 刪除創建的日歷賬戶
     *
     * @return -2: permission deny  0: No designated account  1: delete success
     */
    public static int deleteCalendarAccountByName(Context context) {
        checkContextNull(context);
 
        int deleteCount;
        Uri uri = CalendarContract.Calendars.CONTENT_URI;
 
        String selection = "((" + CalendarContract.Calendars.ACCOUNT_NAME + " = ?) AND ("
                + CalendarContract.Calendars.ACCOUNT_TYPE + " = ?))";
        String[] selectionArgs = new String[]{CALENDAR_ACCOUNT_NAME, CalendarContract.ACCOUNT_TYPE_LOCAL};
 
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (PackageManager.PERMISSION_GRANTED == context.checkSelfPermission(
                    "android.permission.WRITE_CALENDAR")) {
                deleteCount = context.getContentResolver().delete(uri, selection, selectionArgs);
            } else {
                return -2;
            }
        } else {
            deleteCount = context.getContentResolver().delete(uri, selection, selectionArgs);
        }
 
        return deleteCount;
    }
 
 
    // ------------------------------- 添加日歷事件 -----------------------------------
 
    /**
     * 添加日歷事件
     *
     * @param calendarEvent 日歷事件(詳細參數說明請參看{@link CalendarEvent}構造方法)
     * @return 0: success  -1: failed  -2: permission deny
     */
    public static int addCalendarEvent(Context context, CalendarEvent calendarEvent) {
          /**
           * TIP: 插入一個新事件的規則：
           *  1.  必須包含CALENDAR_ID和DTSTART字段
           *  2.  必須包含EVENT_TIMEZONE字段,使用TimeZone.getDefault().getID()方法獲取默認時區
           *  3.  對於非重復發生的事件,必須包含DTEND字段
           *  4.  對重復發生的事件,必須包含一個附加瞭RRULE或RDATE字段的DURATION字段
           */
 
        checkContextNull(context);
 
        // 獲取日歷賬戶ID，也就是要將事件插入到的賬戶
        long calID = obtainCalendarAccountID(context);
 
        // 系統日歷事件表
        Uri uri1 = CalendarContract.Events.CONTENT_URI;
        // 創建的日歷事件
        Uri eventUri;
 
        // 系統日歷事件提醒表
        Uri uri2 = CalendarContract.Reminders.CONTENT_URI;
        // 創建的日歷事件提醒
        Uri reminderUri;
 
        // 開始組裝事件數據
        ContentValues event = new ContentValues();
        // 事件要插入到的日歷賬戶
        event.put(CalendarContract.Events.CALENDAR_ID, calID);
        setupEvent(calendarEvent, event);
 
 
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            // 判斷權限
            if (PackageManager.PERMISSION_GRANTED == context.checkSelfPermission(
                    "android.permission.WRITE_CALENDAR")) {
                eventUri = context.getContentResolver().insert(uri1, event);
            } else {
                return -2;
            }
        } else {
            eventUri = context.getContentResolver().insert(uri1, event);
        }
 
        if (null == eventUri) {
            return -1;
        }
 
 
        if (-2 != calendarEvent.getAdvanceTime()) {
            // 獲取事件ID
            long eventID = ContentUris.parseId(eventUri);
 
            // 開始組裝事件提醒數據
            ContentValues reminders = new ContentValues();
            // 此提醒所對應的事件ID
            reminders.put(CalendarContract.Reminders.EVENT_ID, eventID);
            // 設置提醒提前的時間(0：準時  -1：使用系統默認)
            reminders.put(CalendarContract.Reminders.MINUTES, calendarEvent.getAdvanceTime());
            // 設置事件提醒方式為通知警報
            reminders.put(CalendarContract.Reminders.METHOD, CalendarContract.Reminders.METHOD_ALERT);
            reminderUri = context.getContentResolver().insert(uri2, reminders);
 
            if (null == reminderUri) {
                return -1;
            }
        }
 
        return 0;
    }
 
 
    // ------------------------------- 更新日歷事件 -----------------------------------
 
    /**
     * 更新指定ID的日歷事件
     *
     * @param newCalendarEvent 更新的日歷事件
     * @return -2: permission deny  else success
     */
    public static int updateCalendarEvent(Context context, long eventID, CalendarEvent newCalendarEvent) {
        checkContextNull(context);
 
        int updatedCount1;
 
        Uri uri1 = CalendarContract.Events.CONTENT_URI;
        Uri uri2 = CalendarContract.Reminders.CONTENT_URI;
 
        ContentValues event = new ContentValues();
        setupEvent(newCalendarEvent, event);
 
        // 更新匹配條件
        String selection1 = "(" + CalendarContract.Events._ID + " = ?)";
        String[] selectionArgs1 = new String[]{String.valueOf(eventID)};
 
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (PackageManager.PERMISSION_GRANTED == context.checkSelfPermission(
                    "android.permission.WRITE_CALENDAR")) {
                updatedCount1 = context.getContentResolver().update(uri1, event, selection1, selectionArgs1);
            } else {
                return -2;
            }
        } else {
            updatedCount1 = context.getContentResolver().update(uri1, event, selection1, selectionArgs1);
        }
 
 
        ContentValues reminders = new ContentValues();
        reminders.put(CalendarContract.Reminders.MINUTES, newCalendarEvent.getAdvanceTime());
        reminders.put(CalendarContract.Reminders.METHOD, CalendarContract.Reminders.METHOD_ALERT);
 
        // 更新匹配條件
        String selection2 = "(" + CalendarContract.Reminders.EVENT_ID + " = ?)";
        String[] selectionArgs2 = new String[]{String.valueOf(eventID)};
 
        int updatedCount2 = context.getContentResolver().update(uri2, reminders, selection2, selectionArgs2);
 
        return (updatedCount1 + updatedCount2) / 2;
    }
 
    /**
     * 更新指定ID事件的開始時間
     *
     * @return If successfully returns 1
     */
    public static int updateCalendarEventbeginTime(Context context, long eventID, long newBeginTime) {
        checkContextNull(context);
 
        Uri uri = CalendarContract.Events.CONTENT_URI;
 
        // 新的數據
        ContentValues event = new ContentValues();
        event.put(CalendarContract.Events.DTSTART, newBeginTime);
 
        // 匹配條件
        String selection = "(" + CalendarContract.Events._ID + " = ?)";
        String[] selectionArgs = new String[]{String.valueOf(eventID)};
 
        return context.getContentResolver().update(uri, event, selection, selectionArgs);
    }
 
    /**
     * 更新指定ID事件的結束時間
     *
     * @return If successfully returns 1
     */
    public static int updateCalendarEventEndTime(Context context, long eventID, long newEndTime) {
        checkContextNull(context);
 
        Uri uri = CalendarContract.Events.CONTENT_URI;
 
        // 新的數據
        ContentValues event = new ContentValues();
        event.put(CalendarContract.Events.DTEND, newEndTime);
 
 
        // 匹配條件
        String selection = "(" + CalendarContract.Events._ID + " = ?)";
        String[] selectionArgs = new String[]{String.valueOf(eventID)};
 
        return context.getContentResolver().update(uri, event, selection, selectionArgs);
    }
 
    /**
     * 更新指定ID事件的起始時間
     *
     * @return If successfully returns 1
     */
    public static int updateCalendarEventTime(Context context, long eventID, long newBeginTime,
                                              long newEndTime) {
        checkContextNull(context);
 
        Uri uri = CalendarContract.Events.CONTENT_URI;
 
        // 新的數據
        ContentValues event = new ContentValues();
        event.put(CalendarContract.Events.DTSTART, newBeginTime);
        event.put(CalendarContract.Events.DTEND, newEndTime);
 
 
        // 匹配條件
        String selection = "(" + CalendarContract.Events._ID + " = ?)";
        String[] selectionArgs = new String[]{String.valueOf(eventID)};
 
        return context.getContentResolver().update(uri, event, selection, selectionArgs);
    }
 
    /**
     * 更新指定ID事件的標題
     *
     * @return If successfully returns 1
     */
    public static int updateCalendarEventTitle(Context context, long eventID, String newTitle) {
        checkContextNull(context);
 
        Uri uri = CalendarContract.Events.CONTENT_URI;
 
        // 新的數據
        ContentValues event = new ContentValues();
        event.put(CalendarContract.Events.TITLE, newTitle);
 
 
        // 匹配條件
        String selection = "(" + CalendarContract.Events._ID + " = ?)";
        String[] selectionArgs = new String[]{String.valueOf(eventID)};
 
        return context.getContentResolver().update(uri, event, selection, selectionArgs);
    }
 
    /**
     * 更新指定ID事件的描述
     *
     * @return If successfully returns 1
     */
    public static int updateCalendarEventDes(Context context, long eventID, String newEventDes) {
        checkContextNull(context);
 
        Uri uri = CalendarContract.Events.CONTENT_URI;
 
        // 新的數據
        ContentValues event = new ContentValues();
        event.put(CalendarContract.Events.DESCRIPTION, newEventDes);
 
 
        // 匹配條件
        String selection = "(" + CalendarContract.Events._ID + " = ?)";
        String[] selectionArgs = new String[]{String.valueOf(eventID)};
 
        return context.getContentResolver().update(uri, event, selection, selectionArgs);
    }
 
    /**
     * 更新指定ID事件的地點
     *
     * @return If successfully returns 1
     */
    public static int updateCalendarEventLocation(Context context, long eventID, String newEventLocation) {
        checkContextNull(context);
 
        Uri uri = CalendarContract.Events.CONTENT_URI;
 
        // 新的數據
        ContentValues event = new ContentValues();
        event.put(CalendarContract.Events.EVENT_LOCATION, newEventLocation);
 
 
        // 匹配條件
        String selection = "(" + CalendarContract.Events._ID + " = ?)";
        String[] selectionArgs = new String[]{String.valueOf(eventID)};
 
        return context.getContentResolver().update(uri, event, selection, selectionArgs);
    }
 
    /**
     * 更新指定ID事件的標題和描述
     *
     * @return If successfully returns 1
     */
    public static int updateCalendarEventTitAndDes(Context context, long eventID, String newEventTitle,
                                                   String newEventDes) {
        checkContextNull(context);
 
        Uri uri = CalendarContract.Events.CONTENT_URI;
 
        // 新的數據
        ContentValues event = new ContentValues();
        event.put(CalendarContract.Events.TITLE, newEventTitle);
        event.put(CalendarContract.Events.DESCRIPTION, newEventDes);
 
 
        // 匹配條件
        String selection = "(" + CalendarContract.Events._ID + " = ?)";
        String[] selectionArgs = new String[]{String.valueOf(eventID)};
 
        return context.getContentResolver().update(uri, event, selection, selectionArgs);
    }
 
    /**
     * 更新指定ID事件的常用信息(標題、描述、地點)
     *
     * @return If successfully returns 1
     */
    public static int updateCalendarEventCommonInfo(Context context, long eventID, String newEventTitle,
                                                    String newEventDes, String newEventLocation) {
        checkContextNull(context);
 
        Uri uri = CalendarContract.Events.CONTENT_URI;
 
        // 新的數據
        ContentValues event = new ContentValues();
        event.put(CalendarContract.Events.TITLE, newEventTitle);
        event.put(CalendarContract.Events.DESCRIPTION, newEventDes);
        event.put(CalendarContract.Events.EVENT_LOCATION, newEventLocation);
 
 
        // 匹配條件
        String selection = "(" + CalendarContract.Events._ID + " = ?)";
        String[] selectionArgs = new String[]{String.valueOf(eventID)};
 
        return context.getContentResolver().update(uri, event, selection, selectionArgs);
    }
 
    /**
     * 更新指定ID事件的提醒方式
     *
     * @return If successfully returns 1
     */
    private static int updateCalendarEventReminder(Context context, long eventID, long newAdvanceTime) {
        checkContextNull(context);
 
        Uri uri = CalendarContract.Reminders.CONTENT_URI;
 
        ContentValues reminders = new ContentValues();
        reminders.put(CalendarContract.Reminders.MINUTES, newAdvanceTime);
 
        // 更新匹配條件
        String selection2 = "(" + CalendarContract.Reminders.EVENT_ID + " = ?)";
        String[] selectionArgs2 = new String[]{String.valueOf(eventID)};
 
        return context.getContentResolver().update(uri, reminders, selection2, selectionArgs2);
    }
 
    /**
     * 更新指定ID事件的提醒重復規則
     *
     * @return If successfully returns 1
     */
    private static int updateCalendarEventRRule(Context context, long eventID, String newRRule) {
        checkContextNull(context);
 
        Uri uri = CalendarContract.Events.CONTENT_URI;
 
        // 新的數據
        ContentValues event = new ContentValues();
        event.put(CalendarContract.Events.RRULE, newRRule);
 
        // 匹配條件
        String selection = "(" + CalendarContract.Events._ID + " = ?)";
        String[] selectionArgs = new String[]{String.valueOf(eventID)};
 
        return context.getContentResolver().update(uri, event, selection, selectionArgs);
    }
 
 
    // ------------------------------- 刪除日歷事件 -----------------------------------
 
    /**
     * 刪除日歷事件
     *
     * @param eventID 事件ID
     * @return -2: permission deny  else success
     */
    public static int deleteCalendarEvent(Context context, long eventID) {
        checkContextNull(context);
 
        int deletedCount1;
        Uri uri1 = CalendarContract.Events.CONTENT_URI;
        Uri uri2 = CalendarContract.Reminders.CONTENT_URI;
 
        // 刪除匹配條件
        String selection = "(" + CalendarContract.Events._ID + " = ?)";
        String[] selectionArgs = new String[]{String.valueOf(eventID)};
 
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (PackageManager.PERMISSION_GRANTED == context.checkSelfPermission(
                    "android.permission.WRITE_CALENDAR")) {
                deletedCount1 = context.getContentResolver().delete(uri1, selection, selectionArgs);
            } else {
                return -2;
            }
        } else {
            deletedCount1 = context.getContentResolver().delete(uri1, selection, selectionArgs);
        }
 
        // 刪除匹配條件
        String selection2 = "(" + CalendarContract.Reminders.EVENT_ID + " = ?)";
        String[] selectionArgs2 = new String[]{String.valueOf(eventID)};
 
        int deletedCount2 = context.getContentResolver().delete(uri2, selection2, selectionArgs2);
 
        return (deletedCount1 + deletedCount2) / 2;
    }
 
 
    // ------------------------------- 查詢日歷事件 -----------------------------------
 
    /**
     * 查詢指定日歷賬戶下的所有事件
     *
     * @return If failed return null else return List<CalendarEvent>
     */
    public static List<CalendarEvent> queryAccountEvent(Context context, long calID) {
        checkContextNull(context);
 
        final String[] EVENT_PROJECTION = new String[]{
                CalendarContract.Events.CALENDAR_ID,             // 在表中的列索引0
                CalendarContract.Events.TITLE,                   // 在表中的列索引1
                CalendarContract.Events.DESCRIPTION,             // 在表中的列索引2
                CalendarContract.Events.EVENT_LOCATION,          // 在表中的列索引3
                CalendarContract.Events.DISPLAY_COLOR,           // 在表中的列索引4
                CalendarContract.Events.STATUS,                  // 在表中的列索引5
                CalendarContract.Events.DTSTART,                 // 在表中的列索引6
                CalendarContract.Events.DTEND,                   // 在表中的列索引7
                CalendarContract.Events.DURATION,                // 在表中的列索引8
                CalendarContract.Events.EVENT_TIMEZONE,          // 在表中的列索引9
                CalendarContract.Events.EVENT_END_TIMEZONE,      // 在表中的列索引10
                CalendarContract.Events.ALL_DAY,                 // 在表中的列索引11
                CalendarContract.Events.ACCESS_LEVEL,            // 在表中的列索引12
                CalendarContract.Events.AVAILABILITY,            // 在表中的列索引13
                CalendarContract.Events.HAS_ALARM,               // 在表中的列索引14
                CalendarContract.Events.RRULE,                   // 在表中的列索引15
                CalendarContract.Events.RDATE,                   // 在表中的列索引16
                CalendarContract.Events.HAS_ATTENDEE_DATA,       // 在表中的列索引17
                CalendarContract.Events.LAST_DATE,               // 在表中的列索引18
                CalendarContract.Events.ORGANIZER,               // 在表中的列索引19
                CalendarContract.Events.IS_ORGANIZER,            // 在表中的列索引20
                CalendarContract.Events._ID                      // 在表中的列索引21
        };
 
        // 事件匹配
        Uri uri = CalendarContract.Events.CONTENT_URI;
        Uri uri2 = CalendarContract.Reminders.CONTENT_URI;
 
        String selection = "(" + CalendarContract.Events.CALENDAR_ID + " = ?)";
        String[] selectionArgs = new String[]{String.valueOf(calID)};
 
        Cursor cursor;
 
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (PackageManager.PERMISSION_GRANTED == context.checkSelfPermission(
                    "android.permission.READ_CALENDAR")) {
                cursor = context.getContentResolver().query(uri, EVENT_PROJECTION, selection,
                        selectionArgs, null);
            } else {
                return null;
            }
        } else {
            cursor = context.getContentResolver().query(uri, EVENT_PROJECTION, selection,
                    selectionArgs, null);
        }
 
        if (null == cursor) {
            return null;
        }
 
        // 查詢結果
        List<CalendarEvent> result = new ArrayList<>();
 
        // 開始查詢數據
        if (cursor.moveToFirst()) {
            do {
                CalendarEvent calendarEvent = new CalendarEvent();
                result.add(calendarEvent);
                calendarEvent.setId(cursor.getLong(cursor.getColumnIndex(
                        CalendarContract.Events._ID)));
                calendarEvent.setCalID(cursor.getLong(cursor.getColumnIndex(
                        CalendarContract.Events.CALENDAR_ID)));
                calendarEvent.setTitle(cursor.getString(cursor.getColumnIndex(
                        CalendarContract.Events.TITLE)));
                calendarEvent.setDescription(cursor.getString(cursor.getColumnIndex(
                        CalendarContract.Events.DESCRIPTION)));
                calendarEvent.setEventLocation(cursor.getString(cursor.getColumnIndex(
                        CalendarContract.Events.EVENT_LOCATION)));
                calendarEvent.setDisplayColor(cursor.getInt(cursor.getColumnIndex(
                        CalendarContract.Events.DISPLAY_COLOR)));
                calendarEvent.setStatus(cursor.getInt(cursor.getColumnIndex(
                        CalendarContract.Events.STATUS)));
                calendarEvent.setStart(cursor.getLong(cursor.getColumnIndex(
                        CalendarContract.Events.DTSTART)));
                calendarEvent.setEnd(cursor.getLong(cursor.getColumnIndex(
                        CalendarContract.Events.DTEND)));
                calendarEvent.setDuration(cursor.getString(cursor.getColumnIndex(
                        CalendarContract.Events.DURATION)));
                calendarEvent.setEventTimeZone(cursor.getString(cursor.getColumnIndex(
                        CalendarContract.Events.EVENT_TIMEZONE)));
                calendarEvent.setEventEndTimeZone(cursor.getString(cursor.getColumnIndex(
                        CalendarContract.Events.EVENT_END_TIMEZONE)));
                calendarEvent.setAllDay(cursor.getInt(cursor.getColumnIndex(
                        CalendarContract.Events.ALL_DAY)));
                calendarEvent.setAccessLevel(cursor.getInt(cursor.getColumnIndex(
                        CalendarContract.Events.ACCESS_LEVEL)));
                calendarEvent.setAvailability(cursor.getInt(cursor.getColumnIndex(
                        CalendarContract.Events.AVAILABILITY)));
                calendarEvent.setHasAlarm(cursor.getInt(cursor.getColumnIndex(
                        CalendarContract.Events.HAS_ALARM)));
                calendarEvent.setRRule(cursor.getString(cursor.getColumnIndex(
                        CalendarContract.Events.RRULE)));
                calendarEvent.setRDate(cursor.getString(cursor.getColumnIndex(
                        CalendarContract.Events.RDATE)));
                calendarEvent.setHasAttendeeData(cursor.getInt(cursor.getColumnIndex(
                        CalendarContract.Events.HAS_ATTENDEE_DATA)));
                calendarEvent.setLastDate(cursor.getInt(cursor.getColumnIndex(
                        CalendarContract.Events.LAST_DATE)));
                calendarEvent.setOrganizer(cursor.getString(cursor.getColumnIndex(
                        CalendarContract.Events.ORGANIZER)));
                calendarEvent.setIsOrganizer(cursor.getString(cursor.getColumnIndex(
                        CalendarContract.Events.IS_ORGANIZER)));
 
 
                // ----------------------- 開始查詢事件提醒 ------------------------------
                String[] REMINDER_PROJECTION = new String[]{
                        CalendarContract.Reminders._ID,                     // 在表中的列索引0
                        CalendarContract.Reminders.EVENT_ID,                // 在表中的列索引1
                        CalendarContract.Reminders.MINUTES,                 // 在表中的列索引2
                        CalendarContract.Reminders.METHOD,                  // 在表中的列索引3
                };
                String selection2 = "(" + CalendarContract.Reminders.EVENT_ID + " = ?)";
                String[] selectionArgs2 = new String[]{String.valueOf(calendarEvent.getId())};
 
                try (Cursor reminderCursor = context.getContentResolver().query(uri2, REMINDER_PROJECTION,
                        selection2, selectionArgs2, null)) {
                    if (null != reminderCursor) {
                        if (reminderCursor.moveToFirst()) {
                            List<CalendarEvent.EventReminders> reminders = new ArrayList<>();
                            do {
                                CalendarEvent.EventReminders reminders1 = new CalendarEvent.EventReminders();
                                reminders.add(reminders1);
                                reminders1.setReminderId(reminderCursor.getLong(
                                        reminderCursor.getColumnIndex(CalendarContract.Reminders._ID)));
                                reminders1.setReminderEventID(reminderCursor.getLong(
                                        reminderCursor.getColumnIndex(CalendarContract.Reminders.EVENT_ID)));
                                reminders1.setReminderMinute(reminderCursor.getInt(
                                        reminderCursor.getColumnIndex(CalendarContract.Reminders.MINUTES)));
                                reminders1.setReminderMethod(reminderCursor.getInt(
                                        reminderCursor.getColumnIndex(CalendarContract.Reminders.METHOD)));
                            } while (reminderCursor.moveToNext());
                            calendarEvent.setReminders(reminders);
                        }
                    }
                }
            } while (cursor.moveToNext());
            cursor.close();
        }
 
        return result;
    }
 
    /**
     * 判斷日歷賬戶中是否已經存在此事件
     *
     * @param begin 事件開始時間
     * @param end   事件結束時間
     * @param title 事件標題
     */
    public static boolean isEventAlreadyExist(Context context, long begin, long end, String title) {
        String[] projection = new String[]{
                CalendarContract.Instances.BEGIN,
                CalendarContract.Instances.END,
                CalendarContract.Instances.TITLE
        };
 
        Cursor cursor = CalendarContract.Instances.query(
                context.getContentResolver(), projection, begin, end, title);
 
        return null != cursor && cursor.moveToFirst()
                && cursor.getString(
                cursor.getColumnIndex(CalendarContract.Instances.TITLE)).equals(title);
    }
 
 
    // ------------------------------- 日歷事件相關 -----------------------------------
 
    /**
     * 組裝日歷事件
     */
    private static void setupEvent(CalendarEvent calendarEvent, ContentValues event) {
        // 事件開始時間
        event.put(CalendarContract.Events.DTSTART, calendarEvent.getStart());
        // 事件結束時間
        event.put(CalendarContract.Events.DTEND, calendarEvent.getEnd());
        // 事件標題
        event.put(CalendarContract.Events.TITLE, calendarEvent.getTitle());
        // 事件描述(對應手機系統日歷備註欄)
        event.put(CalendarContract.Events.DESCRIPTION, calendarEvent.getDescription());
        // 事件地點
        event.put(CalendarContract.Events.EVENT_LOCATION, calendarEvent.getEventLocation());
        // 事件時區
        event.put(CalendarContract.Events.EVENT_TIMEZONE, TimeZone.getDefault().getID());
        // 定義事件的顯示，默認即可
        event.put(CalendarContract.Events.ACCESS_LEVEL, CalendarContract.Events.ACCESS_DEFAULT);
        // 事件的狀態
        event.put(CalendarContract.Events.STATUS, 0);
        // 設置事件提醒警報可用
        event.put(CalendarContract.Events.HAS_ALARM, 1);
        // 設置事件忙
        event.put(CalendarContract.Events.AVAILABILITY, CalendarContract.Events.AVAILABILITY_BUSY);
        if (null != calendarEvent.getRRule()) {
            // 設置事件重復規則
            event.put(CalendarContract.Events.RRULE,
                    getFullRRuleForRRule(calendarEvent.getRRule(),
                            calendarEvent.getStart(), calendarEvent.getEnd()));
        }
    }
 
    /**
     * 獲取完整的重復規則(包含終止時間)
     *
     * @param rRule     重復規則
     * @param beginTime 開始時間
     * @param endTime   結束時間
     */
    private static String getFullRRuleForRRule(String rRule, long beginTime, long endTime) {
        builder.delete(0, builder.length());
 
        switch (rRule) {
            case RRuleConstant.REPEAT_WEEKLY_BY_MO:
            case RRuleConstant.REPEAT_WEEKLY_BY_TU:
            case RRuleConstant.REPEAT_WEEKLY_BY_WE:
            case RRuleConstant.REPEAT_WEEKLY_BY_TH:
            case RRuleConstant.REPEAT_WEEKLY_BY_FR:
            case RRuleConstant.REPEAT_WEEKLY_BY_SA:
            case RRuleConstant.REPEAT_WEEKLY_BY_SU:
                return builder.append(rRule).append(Util.getFinalRRuleMode(endTime)).toString();
            case RRuleConstant.REPEAT_CYCLE_WEEKLY:
                return builder.append(rRule).append(Util.getWeekForDate(beginTime)).append("; UNTIL = ")
                        .append(Util.getFinalRRuleMode(endTime)).toString();
            case RRuleConstant.REPEAT_CYCLE_MONTHLY:
                return builder.append(rRule).append(Util.getDayOfMonth(beginTime))
                        .append("; UNTIL = ").append(Util.getFinalRRuleMode(endTime)).toString();
            default:
                return rRule;
        }
    }
 
 
    // ------------------------------- 通過Intent啟動系統日歷 -----------------------------------
 
    /*
        日歷的Intent對象：
           動作                  描述                         附加功能
        ACTION_VIEW        打開指定時間的日歷                    無
        ACTION_VIEW        查看由EVENT_ID指定的事件        開始時間，結束時間
        ACTION_EDIT        編輯由EVENT_ID指定的事件        開始時間，結束時間
        ACTION_INSERT      創建一個事件                         所有
        Intent對象的附加功能：
        Events.TITLE                                        事件標題
        CalendarContract.EXTRA_EVENT_BEGIN_TIME             開始時間
        CalendarContract.EXTRA_EVENT_END_TIME               結束時間
        CalendarContract.EXTRA_EVENT_ALL_DAY                是否全天
        Events.EVENT_LOCATION                               事件地點
        Events.DESCRIPTION                                  事件描述
        Intent.EXTRA_EMALL                                  受邀者電子郵件,用逗號分隔
        Events.RRULE                                        事件重復規則
        Events.ACCESS_LEVEL                                 事件私有還是公有
        Events.AVAILABILITY                                 預定事件是在忙時計數還是閑時計數
     */
 
    /**
     * 通過Intent啟動系統日歷新建事件界面插入新的事件
     * <p>
     * TIP: 這將不再需要聲明讀寫日歷數據的權限
     *
     * @param beginTime 事件開始時間
     * @param endTime   事件結束時間
     * @param title     事件標題
     * @param des       事件描述
     * @param location  事件地點
     * @param isAllDay  事件是否全天
     */
    public static void startCalendarForIntentToInsert(Context context, long beginTime, long endTime,
                                                      String title, String des, String location,
                                                      boolean isAllDay) {
        checkCalendarAccount(context);
 
 
        // FIXME: 2019/3/6 VIVO手機無法打開界面，找不到對應的Activity  com.bbk.calendar
        Intent intent = new Intent(Intent.ACTION_INSERT)
                .setData(CalendarContract.Events.CONTENT_URI)
                .putExtra(CalendarContract.EXTRA_EVENT_BEGIN_TIME, beginTime)
                .putExtra(CalendarContract.EXTRA_EVENT_END_TIME, endTime)
                .putExtra(CalendarContract.Events.ALL_DAY, isAllDay)
                .putExtra(CalendarContract.Events.TITLE, title)
                .putExtra(CalendarContract.Events.DESCRIPTION, des)
                .putExtra(CalendarContract.Events.EVENT_LOCATION, location);
 
        if (null != intent.resolveActivity(context.getPackageManager())) {
            context.startActivity(intent);
        }
    }
 
    /**
     * 通過Intent啟動系統日歷來編輯指定ID的事件
     * <p>
     *
     * @param eventID 要編輯的事件ID
     */
    public static void startCalendarForIntentToEdit(Context context, long eventID) {
        checkCalendarAccount(context);
 
        Uri uri = ContentUris.withAppendedId(CalendarContract.Events.CONTENT_URI, eventID);
        Intent intent = new Intent(Intent.ACTION_EDIT).setData(uri);
 
        if (null != intent.resolveActivity(context.getPackageManager())) {
            context.startActivity(intent);
        }
    }
 
    /**
     * 通過Intent啟動系統日歷來查看指定ID的事件
     *
     * @param eventID 要查看的事件ID
     */
    public static void startCalendarForIntentToView(Context context, long eventID) {
        checkCalendarAccount(context);
 
        Uri uri = ContentUris.withAppendedId(CalendarContract.Events.CONTENT_URI, eventID);
        Intent intent = new Intent(Intent.ACTION_VIEW).setData(uri);
 
        if (null != intent.resolveActivity(context.getPackageManager())) {
            context.startActivity(intent);
        }
    }
 
 
    // ----------------------------- 日歷賬戶名相關設置 -----------------------------------
 
    public static String getCalendarName() {
        return CALENDAR_NAME;
    }
 
    public static void setCalendarName(String calendarName) {
        CALENDAR_NAME = calendarName;
    }
 
    public static String getCalendarAccountName() {
        return CALENDAR_ACCOUNT_NAME;
    }
 
    public static void setCalendarAccountName(String calendarAccountName) {
        CALENDAR_ACCOUNT_NAME = calendarAccountName;
    }
 
    public static String getCalendarDisplayName() {
        return CALENDAR_DISPLAY_NAME;
    }
 
    public static void setCalendarDisplayName(String calendarDisplayName) {
        CALENDAR_DISPLAY_NAME = calendarDisplayName;
    }
 
}

public class CalendarEvent {
 
    // ----------------------- 事件屬性 -----------------------
 
    /**
     * 事件在表中的ID
     */
    private long id;
    /**
     * 事件所屬日歷賬戶的ID
     */
    private long calID;
    private String title;
    private String description;
    private String eventLocation;
    private int displayColor;
    private int status;
    private long start;
    private long end;
    private String duration;
    private String eventTimeZone;
    private String eventEndTimeZone;
    private int allDay;
    private int accessLevel;
    private int availability;
    private int hasAlarm;
    private String rRule;
    private String rDate;
    private int hasAttendeeData;
    private int lastDate;
    private String organizer;
    private String isOrganizer;
 
 
    // ----------------------------------------------------------------------------------------
    /**
     * 註：此屬性不屬於CalendarEvent
     * 這裡隻是為瞭方便構造方法提供事件提醒時間
     */
    private int advanceTime;
    // ----------------------------------------------------------------------------------------
 
 
    // ----------------------- 事件提醒屬性 -----------------------
    private List<EventReminders> reminders;
 
    CalendarEvent() {
    }
 
    /**
     * 用於方便添加完整日歷事件提供一個構造方法
     *
     * @param title         事件標題
     * @param description   事件描述
     * @param eventLocation 事件地點
     * @param start         事件開始時間
     * @param end           事件結束時間  If is not a repeat event, this param is must need else null
     * @param advanceTime   事件提醒時間{@link AdvanceTime}
     *                      (If you don't need to remind the incoming parameters -2)
     * @param rRule         事件重復規則  {@link RRuleConstant}  {@code null} if dose not need
     */
    public CalendarEvent(String title, String description, String eventLocation,
                         long start, long end, int advanceTime, String rRule) {
        this.title = title;
        this.description = description;
        this.eventLocation = eventLocation;
        this.start = start;
        this.end = end;
        this.advanceTime = advanceTime;
        this.rRule = rRule;
    }
 
    public int getAdvanceTime() {
        return advanceTime;
    }
 
    public void setAdvanceTime(int advanceTime) {
        this.advanceTime = advanceTime;
    }
 
    public long getId() {
        return id;
    }
 
    void setId(long id) {
        this.id = id;
    }
 
    public long getCalID() {
        return calID;
    }
 
    void setCalID(long calID) {
        this.calID = calID;
    }
 
    public String getTitle() {
        return title;
    }
 
    void setTitle(String title) {
        this.title = title;
    }
 
    public String getDescription() {
        return description;
    }
 
    void setDescription(String description) {
        this.description = description;
    }
 
    public String getEventLocation() {
        return eventLocation;
    }
 
    void setEventLocation(String eventLocation) {
        this.eventLocation = eventLocation;
    }
 
    public int getDisplayColor() {
        return displayColor;
    }
 
    void setDisplayColor(int displayColor) {
        this.displayColor = displayColor;
    }
 
    public int getStatus() {
        return status;
    }
 
    void setStatus(int status) {
        this.status = status;
    }
 
    public long getStart() {
        return start;
    }
 
    void setStart(long start) {
        this.start = start;
    }
 
    public long getEnd() {
        return end;
    }
 
    void setEnd(long end) {
        this.end = end;
    }
 
    public String getDuration() {
        return duration;
    }
 
    void setDuration(String duration) {
        this.duration = duration;
    }
 
    public String getEventTimeZone() {
        return eventTimeZone;
    }
 
    void setEventTimeZone(String eventTimeZone) {
        this.eventTimeZone = eventTimeZone;
    }
 
    public String getEventEndTimeZone() {
        return eventEndTimeZone;
    }
 
    void setEventEndTimeZone(String eventEndTimeZone) {
        this.eventEndTimeZone = eventEndTimeZone;
    }
 
    public int getAllDay() {
        return allDay;
    }
 
    void setAllDay(int allDay) {
        this.allDay = allDay;
    }
 
    public int getAccessLevel() {
        return accessLevel;
    }
 
    void setAccessLevel(int accessLevel) {
        this.accessLevel = accessLevel;
    }
 
    public int getAvailability() {
        return availability;
    }
 
    void setAvailability(int availability) {
        this.availability = availability;
    }
 
    public int getHasAlarm() {
        return hasAlarm;
    }
 
    void setHasAlarm(int hasAlarm) {
        this.hasAlarm = hasAlarm;
    }
 
    public String getRRule() {
        return rRule;
    }
 
    void setRRule(String rRule) {
        this.rRule = rRule;
    }
 
    public String getRDate() {
        return rDate;
    }
 
    void setRDate(String rDate) {
        this.rDate = rDate;
    }
 
    public int getHasAttendeeData() {
        return hasAttendeeData;
    }
 
    void setHasAttendeeData(int hasAttendeeData) {
        this.hasAttendeeData = hasAttendeeData;
    }
 
    public int getLastDate() {
        return lastDate;
    }
 
    void setLastDate(int lastDate) {
        this.lastDate = lastDate;
    }
 
    public String getOrganizer() {
        return organizer;
    }
 
    void setOrganizer(String organizer) {
        this.organizer = organizer;
    }
 
    public String getIsOrganizer() {
        return isOrganizer;
    }
 
    void setIsOrganizer(String isOrganizer) {
        this.isOrganizer = isOrganizer;
    }
 
    public List<EventReminders> getReminders() {
        return reminders;
    }
 
    void setReminders(List<EventReminders> reminders) {
        this.reminders = reminders;
    }
 
    @NonNull
    @Override
    public String toString() {
        return "CalendarEvent{" +
                "\n id=" + id +
                "\n calID=" + calID +
                "\n title='" + title + '\'' +
                "\n description='" + description + '\'' +
                "\n eventLocation='" + eventLocation + '\'' +
                "\n displayColor=" + displayColor +
                "\n status=" + status +
                "\n start=" + start +
                "\n end=" + end +
                "\n duration='" + duration + '\'' +
                "\n eventTimeZone='" + eventTimeZone + '\'' +
                "\n eventEndTimeZone='" + eventEndTimeZone + '\'' +
                "\n allDay=" + allDay +
                "\n accessLevel=" + accessLevel +
                "\n availability=" + availability +
                "\n hasAlarm=" + hasAlarm +
                "\n rRule='" + rRule + '\'' +
                "\n rDate='" + rDate + '\'' +
                "\n hasAttendeeData=" + hasAttendeeData +
                "\n lastDate=" + lastDate +
                "\n organizer='" + organizer + '\'' +
                "\n isOrganizer='" + isOrganizer + '\'' +
                "\n reminders=" + reminders +
                '}';
    }
 
    @Override
    public int hashCode() {
        return (int) (id * 37 + calID);
    }
 
    /**
     * 事件提醒
     */
    static class EventReminders {
 
        // ----------------------- 事件提醒屬性 -----------------------
        private long reminderId;
        private long reminderEventID;
        private int reminderMinute;
        private int reminderMethod;
 
        public long getReminderId() {
            return reminderId;
        }
 
        void setReminderId(long reminderId) {
            this.reminderId = reminderId;
        }
 
        public long getReminderEventID() {
            return reminderEventID;
        }
 
        void setReminderEventID(long reminderEventID) {
            this.reminderEventID = reminderEventID;
        }
 
        public int getReminderMinute() {
            return reminderMinute;
        }
 
        void setReminderMinute(int reminderMinute) {
            this.reminderMinute = reminderMinute;
        }
 
        public int getReminderMethod() {
            return reminderMethod;
        }
 
        void setReminderMethod(int reminderMethod) {
            this.reminderMethod = reminderMethod;
        }
 
    }
 
}

public class Util {
 
    /**
     * 獲取日歷事件結束日期
     *
     * @param time time in ms
     */
    private static String getEndDate(long time) {
        Date date = new Date(time);
        SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd", Locale.getDefault());
        return format.format(date);
    }
 
    /**
     * 獲取最終日歷事件重復規則
     *
     * @param time time in ms
     *             "T235959" {@linkplain com.kyle.calendarprovider.calendar.RRuleConstant #51}
     */
    public static String getFinalRRuleMode(long time) {
        return getEndDate(time) + "T235959Z";
    }
 
    /**
     * 格式化星期
     */
    private static String formatWeek(int week) {
        switch (week) {
            case 0:
                return "SU";
            case 1:
                return "MO";
            case 2:
                return "TU";
            case 3:
                return "WE";
            case 4:
                return "TH";
            case 5:
                return "FR";
            case 6:
                return "SA";
            default:
                return null;
        }
    }
 
    /**
     * 獲取重復周
     *
     * @param time time in ms
     */
    public static String getWeekForDate(long time) {
        Date date = new Date(time);
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        int week = calendar.get(Calendar.DAY_OF_WEEK) - 1;
        if (week < 0) {
            week = 0;
        }
        return formatWeek(week);
    }
 
    /**
     * 獲取指定時間段在一個月中的哪一天
     *
     * @param time time in ms
     */
    public static int getDayOfMonth(long time) {
        Date date = new Date(time);
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        return calendar.get(Calendar.DAY_OF_MONTH);
    }
 
    /**
     * check null
     */
    public static void checkContextNull(Context context) {
        if (null == context) {
            throw new IllegalArgumentException("context can not be null");
        }
    }
 
}