将 3 天内发生的所有事件从日历读入我的 android 应用程序

Question

我正在尝试在 activity 中记录从今天起 3 天内发生的所有事件。我收到以下错误。请帮忙。我的代码：

 public static long getStartOfDayInMillis() {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.HOUR_OF_DAY, 0);
        calendar.set(Calendar.MINUTE, 0);
        calendar.set(Calendar.SECOND, 0);
        calendar.set(Calendar.MILLISECOND, 0);
        return calendar.getTimeInMillis();
    }


    public static ArrayList<String> readCalendarEvent(Context context) {
        Uri.Builder eventsUriBuilder;
        eventsUriBuilder = Uri.parse("content://com.android.calendar/events").buildUpon();
        ContentUris.appendId(eventsUriBuilder,getStartOfDayInMillis());
        ContentUris.appendId(eventsUriBuilder, getStartOfDayInMillis() + 3*(24 * 60 * 60 * 1000));
        Uri eventsUri = eventsUriBuilder.build();
        Cursor cursor = context.getContentResolver()
                .query(
                        eventsUri,
                        new String[] { "calendar_id", "title", "description",
                                "dtstart", "dtend", "eventLocation" }, null,
                        null, CalendarContract.Instances.DTSTART + " ASC");
        // fetching calendars name
        String CNames[] = new String[cursor.getCount()];

        // fetching calendars id
        nameOfEvent.clear();
        startDates.clear();
        endDates.clear();
        descriptions.clear();
        for (int i = 0; i < CNames.length; i++) {

            nameOfEvent.add(cursor.getString(1));
            startDates.add(getDate(Long.parseLong(cursor.getString(3))));
    //        endDates.add(getDate(Long.parseLong(cursor.getString(4))));
            descriptions.add(cursor.getString(2));
            CNames[i] = cursor.getString(1);
            cursor.moveToNext();

        }
        return nameOfEvent;
    }

我调用它是为了在 Java class 中提供所有事件名称的日志作为..

results=   readCalendarEvent(MyCalendarActivity.this);
    for(int i=0;i< results.size();i++ )
        Log.d("results",results.get(i));

我收到以下错误：

Caused by: java.lang.IllegalArgumentException: Unknown URL content://com.android.calendar/events/1448821800000/1448908200000

Answer 1

这是因为你用错了URL。替换为：

eventsUriBuilder = Uri.parse("content://com.android.calendar/instances/when").buildUpon();

或者：

eventsUriBuilder = CalendarContract.Instances.CONTENT_URI.buildUpon()

将 3 天内发生的所有事件从日历读入我的 android 应用程序

Reading all the events happened during 3 days from the calendar into my android app

android

android-activity

calendar

android-calendar

android-sdk-2.3