Some points...
- Android applications can use a file or sqlite database to store data.
- CP provides a way in which we can share data b/w multiple applications
- Consider Contact DB.. If it is used by different apps,... put it in CP for to hv common access.
- if u want u r data to b public and accessed by many apps,.. put it in u r own content provider.
Apps can do following operations on CP
- Querying data
- Modify records
- Add records
- Delete Records
Standard CP are there : contacts, images.. implemented by android.
Querying data: We require content provider URI, URI consist of 3 parts..
- the string “content://”,
- segment representing kind of data to retrieve and
- optional ID of specific item of the specified content provider
URI : ( what is its full form ? )
- query URIs are somewhat arbitrary and confusing.
- For this android provide list of helper classes in android.provider package that define these query strings
this much is from : http://www.androidcompetencycenter.com/category/android-basics/
------------------------------------PART II-----------------------------------
So some scratches about Database ( before CP ) Okie ?.. Okie...
- Android uses Sqlite database system
- the database that you create for an application is only accessible to itself, others can't access it. is stored in the/data/data/
/databases folder - Creating the 'DBAdapter' Helper Class; that creates, opens, closes, and uses a SQLite database. encapsulate all the complexities of accessing the database.
More about tat in this link: http://www.devx.com/wireless/Article/40842
Try with the Listings.. I m gonna try....
uph... a little difficult.. okie.. again bk to basics.... hureeee..... HLT
next Page: http://www.devx.com/wireless/Article/40842/0/page/2
reference
Cursor: http://developer.android.com/reference/android/database/Cursor.html
Context: http://developer.android.com/reference/android/content/Context.html
