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Android 2.3.3 Creating Events in Calendar

I want to add to my application the ability for the user to create events at specific dates. I've looked around on the internet and on SO, and found out that android 2.3.3 does not have calendar, so I need to use a custom calendar. I've looked around and found some, but they don't support creating events. I've also read about CalendarProvider but it didn't work with the custom calendars. Can someone please recommend me an open-source custom calendar for android 2.3.3 that support creating events.
Thanks
EDIT: Or if there is some kind of tutorial on how I can make my own custom calendar that would be helpful too.

How to use custom calendar view in Android and how to set alert for reminder?

I need to make an Android application to show a Calendar control. I have tried to find such a control in the default widgets provided by Android, but could not find it. How to integrate a Calendar control in an Android application?
I also want the Calendar to enable adding events and reminders to specific dates.

Lags while playing 2 sounds on the same time in timer
http://developer.android.com/reference/java/util/TimerTask.html
This may help you.
UPDATE:
http://developer.android.com/reference/android/app/AlarmManager.html
http://blog.blundellapps.com/notification-for-a-user-chosen-time/
http://android.arnodenhond.com/tutorials/alarm-notification
May be this is what he is looking for?

Use android TimerTask in app.
Android Developers
If something else is what you're looking for, try to make your question clearer.
Here is how you can use it:
Stackoverflow
UPDATE
I believe this is what you're looking for:
Stackoverflow

Using Android API with other application in Android Platform

I want to find out if it is possible to create Android API's that can be used or implemented in other applications, so that they can be synchronized. For example, there is a calendar application and a separate application that has the details of all the meetings of the day. Can the calendar & the other app be synchronized to get a new application in which the calendar itself shows the meetings for the day?
Where can I learn more about these API's?

Question is not very clear, but what I understood from your question that you want to create two applications which uses same datasource.
To Achieve this, you can use ContentProvider, By ContentProviders an application make exposure of its data to other applications. To create and Use content providers look into following links:
http://developer.android.com/guide/topics/providers/content-provider-creating.html
and
http://developer.android.com/guide/topics/providers/calendar-provider.html

how to display calendar control in android?

i need to make an android application to show a calendar control. I have tried to find such a control in the default widgets provided by android, but could not find it.
How to integrate a calendar control in an Android application.
I also want the calendar to enable adding events to specific dates.
Thank you in advance.
Edit: i found the calendar view control but any other way to use calendars which is better then this ?

Ancal is a good android calendar control. Also an its opensource android control.

How to embed a calendar on an Android app?

I would like to embed a calendar inside my android application... I have seen several open source application, but are not what I would like to have.
Does someone have any suggestion on how to embed it?
Or maybe a good application of a calendar to embed?
Thank you very much :)

Why not trigger the built-in calendar activities via Intents? Best of both worlds.