Android 日历在 10 分钟后删除日历和事件

Question

我一直在开发一款涉及制作活动的应用程序。我已经在 Android 的默认日历上成功创建了一个日历，并且我已经能够在此日历上添加、删除或更新事件。但是，我注意到我创建的日历会在大约 10 分钟后自动删除。这可能是 S 计划程序（默认日历）或 Google 日历的问题吗？这就是我制作日历的方式：

    Uri target = Uri.parse(CalendarContract.Calendars.CONTENT_URI.toString());
    target = target.buildUpon().appendQueryParameter(CalendarContract.CALLER_IS_SYNCADAPTER, "true")
            .appendQueryParameter(CalendarContract.Calendars.ACCOUNT_NAME, accountName)
            .appendQueryParameter(CalendarContract.Calendars.ACCOUNT_TYPE, Utils.APP_PACKAGE).build();


    ContentValues values = new ContentValues();
    values.put(CalendarContract.Calendars._ID, MY_CALENDAR_ID);
    values.put(CalendarContract.Calendars.ACCOUNT_NAME, accountName);
    values.put(CalendarContract.Calendars.ACCOUNT_TYPE, Utils.APP_PACKAGE);
    values.put(CalendarContract.Calendars.NAME, "TBDAppName (" + accountName + ")");
    values.put(CalendarContract.Calendars.CALENDAR_DISPLAY_NAME, Utils.APP_PACKAGE);
    values.put(CalendarContract.Calendars.CALENDAR_COLOR, 0x00FF00);
    values.put(CalendarContract.Calendars.CALENDAR_ACCESS_LEVEL, CalendarContract.Calendars.CAL_ACCESS_READ);
    values.put(CalendarContract.Calendars.OWNER_ACCOUNT, accountName);
    values.put(CalendarContract.Calendars.VISIBLE, 1);
    values.put(CalendarContract.Calendars.SYNC_EVENTS, 1);

    context.getContentResolver().insert(target, values);

这就是我插入事件的方式：

   long startMillis = 0;
   long endMillis = 0;
   Calendar beginTime = Calendar.getInstance();
   beginTime.set(2018, 01, 01, 7, 30);  //random time to test inserting.
   startMillis = beginTime.getTimeInMillis();
   ContentValues values = new ContentValues();
   values.put(Events.CALENDAR_ID, MY_CALENDAR_ID);
   values.put(Events._ID, MY_EVENT_ID);
   values.put(Events.TITLE, MY_EVENT_TITLE);
   values.put(Events.DESCRIPTION, "test description");
   values.put(Events.DTSTART, startMillis);
   values.put(Events.DTEND, startMillis);
   values.put(Events.CALENDAR_ID, MY_CALENDAR_ID);
   TimeZone timeZone = TimeZone.getDefault();
   values.put(Events.EVENT_TIMEZONE, timeZone.getID());
   context.getContentResolver().insert(Events.CONTENT_URI, values);

Answer 1

创建日历时，必须将其设置为ACCOUNT_TYPE_LOCAL，否则会被删除。这在 http://developer.android.com/reference/android/provider/CalendarContract.html 中描述如下；

public static final String ACCOUNT_TYPE_LOCAL

A special account type for calendars not associated with any account. Normally calendars that do not match an account on the device will be removed. Setting the account_type on a calendar to this will prevent it from being wiped if it does not match an existing account.

Android 日历在 10 分钟后删除日历和事件

Android calendar deletes calendar and events after 10 minutes

java

android

calendar

android-calendar

android-event