添加使用Java的Android日历事件 [英] add android calendar events using java
问题描述
你好我想添加事件到Android日历。我是新android开发。请帮助我,我怎么可以添加事件到Android日历。这是我的code不工作。当我运行它,它给了我一个消息应用程序的日历(过程com.something.something)意外停止,并有这个按钮强制停止。这是我的code
包com.zafar.calendar;
进口android.app.Activity;
进口android.content.ContentValues;
进口android.database.Cursor;
进口android.net.Uri;
进口android.os.Bundle;
公共类日历延伸活动{
/ **第一次创建活动时调用。 * /
@覆盖
公共无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.main);
光标光标= getContentResolver()查询。(Uri.parse(内容://com.android.calendar/calendars),新的String [] {_ ID,显示名称},NULL,NULL,NULL);
cursor.moveToFirst();
//获取日历名称
字符串calendarNames [] =新的String [cursor.getCount()];
//获取日历ID
INT [] calendarId =新INT [cursor.getCount()];
的for(int i = 0; I< calendarNames.length;我++)
{
calendarId [I] = cursor.getInt(0);
calendarNames [I] = cursor.getString(1);
cursor.moveToNext();
}
cursor.close();
ContentValues contentEvent =新ContentValues();
contentEvent.put(CALENDAR_ID,1);
contentEvent.put(标题,婚礼);
contentEvent.put(eventLocation,纽约);
contentEvent.put(DTSTART,1335432431000);
contentEvent.put(DTEND,1335436031000);
乌里eventsUri = Uri.parse(内容://com.android.calendar/events);
。getContentResolver()插入(eventsUri,contentEvent);
}
}
更新 这是我的menifest文件
<应用
机器人:图标=@可绘制/ ic_launcher
机器人:标签=@字符串/ APP_NAME>
<活动
机器人:日历NAME =
机器人:标签=@字符串/ APP_NAME>
<意向滤光器>
<作用机器人:名称=android.intent.action.MAIN/>
<类机器人:名称=android.intent.category.LAUNCHER/>
&所述; /意图滤光器>
< /活性GT;
<使用-权限的Android:名称=android.permission.READ_CALENDAR>< /使用-许可>
<使用-权限的Android:名称=android.permission.WRITE_CALENDAR>< /使用-许可>
< /用途>
的logcat
我是新android开发。我不知道确切的logcat。我跑的logcat在命令提示符条命令,我得到这个
9月四日至28日:16:57.956:D / AndroidRuntime(333):关闭虚拟机
九月四号至28号:16:57.956:W / dalvikvm(333):主题ID = 1:螺纹退出与未捕获的异常(组= 0x40015560)
九月四号至28号:16:57.975:E / AndroidRuntime(333):致命异常:主要
九月四号至28号:16:57.975:E / AndroidRuntime(333):java.lang.RuntimeException的:无法启动的活动ComponentInfo {com.zafar.calendar / com.zafar.calendar.Calendar}:显示java.lang.NullPointerException
九月四号至28号:16:57.975:E / AndroidRuntime(333):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
九月四号至28号:16:57.975:E / AndroidRuntime(333):在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
九月四号至28号:16:57.975:E / AndroidRuntime(333):在android.app.ActivityThread.access $ 1500(ActivityThread.java:117)
九月四号至28号:16:57.975:E / AndroidRuntime(333):在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:931)
九月四号至28号:16:57.975:E / AndroidRuntime(333):在android.os.Handler.dispatchMessage(Handler.java:99)
九月四号至28号:16:57.975:E / AndroidRuntime(333):在android.os.Looper.loop(Looper.java:123)
九月四号至28号:16:57.975:E / AndroidRuntime(333):在android.app.ActivityThread.main(ActivityThread.java:3683)
九月四号至28号:16:57.975:E / AndroidRuntime(333):在java.lang.reflect.Method.invokeNative(本机方法)
九月四号至28号:16:57.975:E / AndroidRuntime(333):在java.lang.reflect.Method.invoke(Method.java:507)
九月四号至28号:16:57.975:E / AndroidRuntime(333):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:839)
九月四号至28号:16:57.975:E / AndroidRuntime(333):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
九月四号至28号:16:57.975:E / AndroidRuntime(333):在dalvik.system.NativeStart.main(本机方法)
九月四号至28号:16:57.975:E / AndroidRuntime(333):由:显示java.lang.NullPointerException
九月四号至28号:16:57.975:E / AndroidRuntime(333):在com.zafar.calendar.Calendar.onCreate(Calendar.java:51)
九月四号至28号:16:57.975:E / AndroidRuntime(333):在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
九月四号至28号:16:57.975:E / AndroidRuntime(333):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
九月四号至28号:16:57.975:E / AndroidRuntime(333):11 ...更多
九月四号至28号:21:58.095:I /处理(333):发送信号。 PID:333 SIG:9
错误在code:
-
新的String [] {CALENDAR_ID,显示名称},NULL,NULL,NULL);
有没有存在的列名CALENDAR_ID在日历数据库中。正确的是 _id 不CALENDAR_ID。因此,这将是新的String [] { _id ,显示名称},NULL,NULL,NULL);
和看到这样的参考。 http://stackoverflow.com/a/10310258 并的 http://android.arnodenhond.com/tutorials/calendar
修改
有关插入新的事件,3个值是必需的。 CALENDAR_ID,EventStartTime和EventEndTime。如果没有这些价值观不能插入新的事件。 EventStartTime和EventEndTime需要进入划时代的格式。
对于普通日至纪元日期: http://stackoverflow.com/a/6687502/1160207
对于划时代正常日期:<一href="http://stackoverflow.com/a/10028980/1160207">http://stackoverflow.com/a/10028980/1160207
下面是code,完美的工作给我。
光标光标= getContentResolver()查询(Uri.parse(内容://com.android.calendar/calendars),新的String [] {_ ID,显示名称},NULL,NULL,NULL);
cursor.moveToFirst();
//获取日历名称
字符串calendarNames [] =新的String [cursor.getCount()];
//获取日历ID
INT [] calendarId =新INT [cursor.getCount()];
的for(int i = 0; I&LT; calendarNames.length;我++)
{
calendarId [I] = cursor.getInt(0);
calendarNames [I] = cursor.getString(1);
cursor.moveToNext();
}
cursor.close();
ContentValues contentEvent =新ContentValues();
contentEvent.put(CALENDAR_ID,1);
contentEvent.put(标题,婚礼);
contentEvent.put(eventLocation,纽约);
contentEvent.put(DTSTART,1335432431000);
contentEvent.put(DTEND,1335436031000);
乌里eventsUri = Uri.parse(内容://com.android.calendar/events);
。getContentResolver()插入(eventsUri,contentEvent);
希望这会帮助你。而且不要忘了去接受它,如果它是对你有帮助。
谢谢...
Hi I am trying to add event to android calendar. I am new to android development. Please help me how can I add events to android calendar. Here is my code which does not work. When I run it, it gives me a message "The application calendar (process com.something.something) has stopped unexpectedly"and has this button "Force to stop". Here is my code
package com.zafar.calendar;
import android.app.Activity;
import android.content.ContentValues;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
public class Calendar extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Cursor cursor=getContentResolver().query(Uri.parse("content://com.android.calendar/calendars"), new String[]{"_id", "displayname"}, null, null, null);
cursor.moveToFirst();
// Get calendars name
String calendarNames[] = new String[cursor.getCount()];
// Get calendars id
int[] calendarId = new int[cursor.getCount()];
for (int i = 0; i < calendarNames.length; i++)
{
calendarId[i] = cursor.getInt(0);
calendarNames[i] = cursor.getString(1);
cursor.moveToNext();
}
cursor.close();
ContentValues contentEvent = new ContentValues();
contentEvent.put("calendar_id", 1);
contentEvent.put("title", "Wedding");
contentEvent.put("eventLocation", "New York");
contentEvent.put("dtstart","1335432431000");
contentEvent.put("dtend","1335436031000");
Uri eventsUri = Uri.parse("content://com.android.calendar/events");
getContentResolver().insert(eventsUri, contentEvent);
}
}
Update Here is my menifest file
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".Calendar"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<uses-permission android:name="android.permission.READ_CALENDAR"></uses-permission>
<uses-permission android:name="android.permission.WRITE_CALENDAR"></uses-permission>
</application>
Logcat
I am new to android development. I do not know logcat exactly. I ran logcat commmand on command prompt and I got this
04-28 09:16:57.956: D/AndroidRuntime(333): Shutting down VM
04-28 09:16:57.956: W/dalvikvm(333): threadid=1: thread exiting with uncaught exception (group=0x40015560)
04-28 09:16:57.975: E/AndroidRuntime(333): FATAL EXCEPTION: main
04-28 09:16:57.975: E/AndroidRuntime(333): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.zafar.calendar/com.zafar.calendar.Calendar}: java.lang.NullPointerException
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.os.Handler.dispatchMessage(Handler.java:99)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.os.Looper.loop(Looper.java:123)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.ActivityThread.main(ActivityThread.java:3683)
04-28 09:16:57.975: E/AndroidRuntime(333): at java.lang.reflect.Method.invokeNative(Native Method)
04-28 09:16:57.975: E/AndroidRuntime(333): at java.lang.reflect.Method.invoke(Method.java:507)
04-28 09:16:57.975: E/AndroidRuntime(333): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
04-28 09:16:57.975: E/AndroidRuntime(333): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
04-28 09:16:57.975: E/AndroidRuntime(333): at dalvik.system.NativeStart.main(Native Method)
04-28 09:16:57.975: E/AndroidRuntime(333): Caused by: java.lang.NullPointerException
04-28 09:16:57.975: E/AndroidRuntime(333): at com.zafar.calendar.Calendar.onCreate(Calendar.java:51)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
04-28 09:16:57.975: E/AndroidRuntime(333): ... 11 more
04-28 09:21:58.095: I/Process(333): Sending signal. PID: 333 SIG: 9
Mistake in your code:
new String[]{"calendar_id", "displayname"}, null, null, null);
There is no column exists name calendar_id in Calendar database. Correct is _id not calendar_id. So it will be new String[]{"_id", "displayname"}, null, null, null);
And see this reference. http://stackoverflow.com/a/10310258 And http://android.arnodenhond.com/tutorials/calendar
EDIT
For inserting new event, 3 values are required. Calendar_id, EventStartTime And EventEndTime. Without these values you cannot insert new event. EventStartTime and EventEndTime need into epoch format.
For normal date to epoch date: http://stackoverflow.com/a/6687502/1160207
For epoch to normal date: http://stackoverflow.com/a/10028980/1160207
Here is the code that perfectly working to me.
Cursor cursor=getContentResolver().query(Uri.parse("content://com.android.calendar/calendars"), new String[]{"_id", "displayname"}, null, null, null);
cursor.moveToFirst();
// Get calendars name
String calendarNames[] = new String[cursor.getCount()];
// Get calendars id
int[] calendarId = new int[cursor.getCount()];
for (int i = 0; i < calendarNames.length; i++)
{
calendarId[i] = cursor.getInt(0);
calendarNames[i] = cursor.getString(1);
cursor.moveToNext();
}
cursor.close();
ContentValues contentEvent = new ContentValues();
contentEvent.put("calendar_id", 1);
contentEvent.put("title", "Wedding");
contentEvent.put("eventLocation", "New York");
contentEvent.put("dtstart","1335432431000");
contentEvent.put("dtend","1335436031000");
Uri eventsUri = Uri.parse("content://com.android.calendar/events");
getContentResolver().insert(eventsUri, contentEvent);
Hope this will help you. And don't forget to accept it if it is helpful to you.
Thanks...
这篇关于添加使用Java的Android日历事件的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!