add android calendar events using java

Question

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()]…

Accepted Answer

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. https://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: https://stackoverflow.com/a/6687502/1160207 For epoch to normal date: https://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...

add android calendar events using java

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