我的问题是，我必须制作一个我希望阅读Google日历事件的演示应用程序，因为我手动插入了事件标题，事件发生时间和事件详细信息等事件。整个事件。现在我需要从那个日历中读取那些事件。 为此，我尝试使用提供日历API类的gcode（谷歌代码）API。但我仍然无法阅读这些事件。
答案 0 :(得分：21)
上面的代码非常糟糕（它似乎在ICS中不起作用 - 绝对是列名不同）
此处的页面： http://developer.android.com/guide/topics/providers/calendar-provider.html
提供了更好的概述。 一个（更简单）的代码来检索日历：
public class CalendarContentResolver {
public static final String[] FIELDS = {
CalendarContract.Calendars.NAME,
CalendarContract.Calendars.CALENDAR_DISPLAY_NAME,
CalendarContract.Calendars.CALENDAR_COLOR,
CalendarContract.Calendars.VISIBLE
};
public static final Uri CALENDAR_URI = Uri.parse("content://com.android.calendar/calendars");
ContentResolver contentResolver;
Set<String> calendars = new HashSet<String>();
public CalendarContentResolver(Context ctx) {
contentResolver = ctx.getContentResolver();
}
public Set<String> getCalendars() {
// Fetch a list of all calendars sync'd with the device and their display names
Cursor cursor = contentResolver.query(CALENDAR_URI, FIELDS, null, null, null);
try {
if (cursor.getCount() > 0) {
while (cursor.moveToNext()) {
String name = cursor.getString(0);
String displayName = cursor.getString(1);
// This is actually a better pattern:
String color = cursor.getString(cursor.getColumnIndex(CalendarContract.Calendars.CALENDAR_COLOR));
Boolean selected = !cursor.getString(3).equals("0");
calendars.add(displayName);
}
}
} catch (AssertionError ex) { /*TODO: log exception and bail*/ }
return calendars;
}
}
希望这有帮助！
答案 1 :(得分：18)
好的，我找到了如何使用谷歌日历应用程序与Android手机集成的整个概念的答案。
代码： -
首先你设置这行将从另一个类形式读取日历事件，你的类是当前的ApplicationSettings.java。
ReadCalendar.readCalendar(ApplicationSettings.this);
package com.mycalendarevents.android;
import java.util.Date;
import java.util.HashSet;
import java.util.regex.Pattern;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.text.format.DateUtils;
public class ReadCalendar
{
static Cursor cursor;
public static void readCalendar(Context context) {
ContentResolver contentResolver = context.getContentResolver();
// Fetch a list of all calendars synced with the device, their display names and whether the
cursor = contentResolver.query(Uri.parse("content://com.android.calendar/calendars"),
(new String[] { "_id", "displayName", "selected"}), null, null, null);
HashSet<String> calendarIds = new HashSet<String>();
try
{
System.out.println("Count="+cursor.getCount());
if(cursor.getCount() > 0)
{
System.out.println("the control is just inside of the cursor.count loop");
while (cursor.moveToNext()) {
String _id = cursor.getString(0);
String displayName = cursor.getString(1);
Boolean selected = !cursor.getString(2).equals("0");
System.out.println("Id: " + _id + " Display Name: " + displayName + " Selected: " + selected);
calendarIds.add(_id);
}
}
}
catch(AssertionError ex)
{
ex.printStackTrace();
}
catch(Exception e)
{
e.printStackTrace();
}
// For each calendar, display all the events from the previous week to the end of next week.
for (String id : calendarIds) {
Uri.Builder builder = Uri.parse("content://com.android.calendar/instances/when").buildUpon();
//Uri.Builder builder = Uri.parse("content://com.android.calendar/calendars").buildUpon();
long now = new Date().getTime();
ContentUris.appendId(builder, now - DateUtils.DAY_IN_MILLIS * 10000);
ContentUris.appendId(builder, now + DateUtils.DAY_IN_MILLIS * 10000);
Cursor eventCursor = contentResolver.query(builder.build(),
new String[] { "title", "begin", "end", "allDay"}, "Calendars._id=" + 1,
null, "startDay ASC, startMinute ASC");
System.out.println("eventCursor count="+eventCursor.getCount());
if(eventCursor.getCount()>0)
{
if(eventCursor.moveToFirst())
{
do
{
Object mbeg_date,beg_date,beg_time,end_date,end_time;
final String title = eventCursor.getString(0);
final Date begin = new Date(eventCursor.getLong(1));
final Date end = new Date(eventCursor.getLong(2));
final Boolean allDay = !eventCursor.getString(3).equals("0");
/* System.out.println("Title: " + title + " Begin: " + begin + " End: " + end +
" All Day: " + allDay);
*/
System.out.println("Title:"+title);
System.out.println("Begin:"+begin);
System.out.println("End:"+end);
System.out.println("All Day:"+allDay);
/* the calendar control metting-begin events Respose sub-string (starts....hare) */
Pattern p = Pattern.compile(" ");
String[] items = p.split(begin.toString());
String scalendar_metting_beginday,scalendar_metting_beginmonth,scalendar_metting_beginyear,scalendar_metting_begindate,scalendar_metting_begintime,scalendar_metting_begingmt;
scalendar_metting_beginday = items[0];
scalendar_metting_beginmonth = items[1];
scalendar_metting_begindate = items[2];
scalendar_metting_begintime = items[3];
scalendar_metting_begingmt = items[4];
scalendar_metting_beginyear = items[5];
String calendar_metting_beginday = scalendar_metting_beginday;
String calendar_metting_beginmonth = scalendar_metting_beginmonth.toString().trim();
int calendar_metting_begindate = Integer.parseInt(scalendar_metting_begindate.trim());
String calendar_metting_begintime = scalendar_metting_begintime.toString().trim();
String calendar_metting_begingmt = scalendar_metting_begingmt;
int calendar_metting_beginyear = Integer.parseInt(scalendar_metting_beginyear.trim());
System.out.println("calendar_metting_beginday="+calendar_metting_beginday);
System.out.println("calendar_metting_beginmonth ="+calendar_metting_beginmonth);
System.out.println("calendar_metting_begindate ="+calendar_metting_begindate);
System.out.println("calendar_metting_begintime="+calendar_metting_begintime);
System.out.println("calendar_metting_begingmt ="+calendar_metting_begingmt);
System.out.println("calendar_metting_beginyear ="+calendar_metting_beginyear);
/* the calendar control metting-begin events Respose sub-string (starts....ends) */
/* the calendar control metting-end events Respose sub-string (starts....hare) */
Pattern p1 = Pattern.compile(" ");
String[] enditems = p.split(end.toString());
String scalendar_metting_endday,scalendar_metting_endmonth,scalendar_metting_endyear,scalendar_metting_enddate,scalendar_metting_endtime,scalendar_metting_endgmt;
scalendar_metting_endday = enditems[0];
scalendar_metting_endmonth = enditems[1];
scalendar_metting_enddate = enditems[2];
scalendar_metting_endtime = enditems[3];
scalendar_metting_endgmt = enditems[4];
scalendar_metting_endyear = enditems[5];
String calendar_metting_endday = scalendar_metting_endday;
String calendar_metting_endmonth = scalendar_metting_endmonth.toString().trim();
int calendar_metting_enddate = Integer.parseInt(scalendar_metting_enddate.trim());
String calendar_metting_endtime = scalendar_metting_endtime.toString().trim();
String calendar_metting_endgmt = scalendar_metting_endgmt;
int calendar_metting_endyear = Integer.parseInt(scalendar_metting_endyear.trim());
System.out.println("calendar_metting_beginday="+calendar_metting_endday);
System.out.println("calendar_metting_beginmonth ="+calendar_metting_endmonth);
System.out.println("calendar_metting_begindate ="+calendar_metting_enddate);
System.out.println("calendar_metting_begintime="+calendar_metting_endtime);
System.out.println("calendar_metting_begingmt ="+calendar_metting_endgmt);
System.out.println("calendar_metting_beginyear ="+calendar_metting_endyear);
/* the calendar control metting-end events Respose sub-string (starts....ends) */
System.out.println("only date begin of events="+begin.getDate());
System.out.println("only begin time of events="+begin.getHours() + ":" +begin.getMinutes() + ":" +begin.getSeconds());
System.out.println("only date begin of events="+end.getDate());
System.out.println("only begin time of events="+end.getHours() + ":" +end.getMinutes() + ":" +end.getSeconds());
beg_date = begin.getDate();
mbeg_date = begin.getDate()+"/"+calendar_metting_beginmonth+"/"+calendar_metting_beginyear;
beg_time = begin.getHours();
System.out.println("the vaule of mbeg_date="+mbeg_date.toString().trim());
end_date = end.getDate();
end_time = end.getHours();
CallHandlerUI.metting_begin_date.add(beg_date.toString());
CallHandlerUI.metting_begin_mdate.add(mbeg_date.toString());
CallHandlerUI.metting_begin_mtime.add(calendar_metting_begintime.toString());
CallHandlerUI.metting_end_date.add(end_date.toString());
CallHandlerUI.metting_end_time.add(end_time.toString());
CallHandlerUI.metting_end_mtime.add(calendar_metting_endtime.toString());
}
while(eventCursor.moveToNext());
}
}
break;
}
}
}
这里是整个代码将被发布，它将简单地从你的日历中读取每个事件，并在2.2版及以上版本的回发网址的帮助下：
Uri.parse("content://com.android.calendar/instances/when").buildUpon();
在android中查找低于2.2的那些版本，并根据需要使用这些事件......
答案 2 :(得分：8)
我知道这是一个古老的帖子，但是如果有人在不久的将来需要解决方案的话，我找到了优化Akash Takkar给出的答案中找到的解决方案的灵感。
特别是，我在原始代码中发现了一些问题：
我特此创建了一个Github库，它返回指定时间范围内的事件对象列表，可在以下位置找到：
https://github.com/david-laundav/CalendarService
源文件可以在“CalendarService / src / dk / CalendarService”下找到。
使用案例
解决方案本身包含两种不同用途的方法。
第一个用例：
CalendarService.readCalendar(class.this)
// where class.this is either your class or the context
此方法将返回+/- 1天的事件列表
第二个用例：
您还可以指定自己的时间范围：
CalendarService.readCalendar(class.this, int days, int hours)
一个例子可能是：
CalendarService.readCalendar(class.this, 2, 5)
这样做会返回+/- 2天和+/- 5小时的事件列表。
该服务已经过测试，但如果您遇到任何问题，请告诉我。
答案 3 :(得分：5)
这篇文章有点陈旧，但这是另一种简单的解决方案，用于在Android中获取与Calendar内容提供商相关的数据：
使用此lib：https://github.com/EverythingMe/easy-content-providers
现在，获取所有日历：
CalendarProvider calendarProvider = new CalendarProvider(context);
List<Calendar> calendars = calendarProvider.getCalendars().getList();
每个日历都包含所有字段，因此您可以获得所需的任何信息： id，name，calendarColor，ownerAccount，accountName，calendarAccessLevel，...
或者，获取特定日历的所有事件：
List<Event> calendars = calendarProvider.getEvents(calendar.id).getList();
还可以选择提醒，与会者，实例。
它适用于列表或光标，并有一个示例应用程序，以查看它的外观和工作方式。 事实上，所有Android内容提供商都支持：通讯录，短信，通话...... 包含所有选项的完整文档：https://github.com/EverythingMe/easy-content-providers/wiki/Android-providers
希望它有所帮助：）
答案 4 :(得分：2)
使用此代码获取一天的日历活动。
public static void readCalendarEvent(Context context) throws ParseException {
ContentResolver contentResolver = context.getContentResolver();
Calendar calendar = Calendar.getInstance();
String dtstart = "dtstart";
String dtend = "dtend";
SimpleDateFormat displayFormatter = new SimpleDateFormat("MMMM dd, yyyy (EEEE)");
stime=displayFormatter.format(calendar.getTime());
SimpleDateFormat startFormatter = new SimpleDateFormat("MM/dd/yy");
String dateString = startFormatter.format(calendar.getTime());
long after = calendar.getTimeInMillis();
SimpleDateFormat formatterr = new SimpleDateFormat("hh:mm:ss MM/dd/yy");
Calendar endOfDay = Calendar.getInstance();
Date dateCCC = formatterr.parse("23:59:59 " + dateString);
endOfDay.setTime(dateCCC);
cursor = contentResolver.query(Uri.parse("content://com.android.calendar/events"), (new String[] { "calendar_id", "title", "description", "dtstart", "dtend","eventTimezone", "eventLocation" }), "(" + dtstart + ">" + after + " and " + dtend + "<" + endOfDay.getTimeInMillis() + ")", null, "dtstart ASC");
/*String[] COLS={"calendar_id", "title", "description", "dtstart", "dtend","eventTimezone", "eventLocation"};
cursor = contentResolver.query(
CalendarContract.Events.CONTENT_URI, COLS,null, null, null);*/
gCalendar = new ArrayList<GoogleCalendar>();
try {
if (cursor.getCount() > 0) {
while (cursor.moveToNext()) {
GoogleCalendar googleCalendar = new GoogleCalendar();
gCalendar.add(googleCalendar);
int calendar_id = cursor.getInt(0);
googleCalendar.setCalendar_id(calendar_id);
String title = cursor.getString(1);
googleCalendar.setTitle(title);
String description = cursor.getString(2);
googleCalendar.setDescription(description);
String dtstart1 = cursor.getString(3);
dt=convertDate(dtstart1,"hh:mm:ss");
googleCalendar.setDtstart(dt);
String dtend1 = cursor.getString(4);
googleCalendar.setDtend(dtend1);
String eventTimeZone=cursor.getString(5);
googleCalendar.setEventTimeZone(eventTimeZone);
String eventlocation = cursor.getString(6);
googleCalendar.setEventlocation(eventlocation);
}
}
} catch (AssertionError ex) {
ex.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
}