how to know value is added in simplecursoradapter

Question

I need to know, there is any alert function for SimpleCursorAdapter when value is added? What I want is

I open MainActivity, there is ListView integrated with SimpleCursorAdapter added data by background services.
When value is added by background services, I want to refresh ListView and want to know how many new value is added. (don't want to use notification).

Just like AddAll() and notifyDataSetChanged() of ArrayAdapter.

It can be possible?

a simple cursor adapter like all other adapters does have a notify dataset changed method/ — Rat-a-tat-a-tat Ratatouille, Oct 11 '13 at 09:57
yes true a cursor loader and content provider will manage things for you, cursor.setNotificationUri(getContext().getContentResolver(), uri); through this method. In the case of a cursor i think you will have to perform a requery. — Rat-a-tat-a-tat Ratatouille, Oct 11 '13 at 10:18
please look at http://android-er.blogspot.in/2011/06/add-data-to-sqlite-database-with.html — Rat-a-tat-a-tat Ratatouille, Oct 11 '13 at 10:22
cited from the android developer site, cursor.requery is deprecated **requery() This method was deprecated in API level 11. Don't use this. Just request a new cursor, so you can do this asynchronously and update your list view once the new cursor comes back.** — Rat-a-tat-a-tat Ratatouille, Oct 11 '13 at 10:25
and please check this too: http://stackoverflow.com/questions/16937839/android-how-to-requery-a-cursor-to-refresh-listview-after-deleting-database-row?answertab=votes#tab-top — Rat-a-tat-a-tat Ratatouille, Oct 11 '13 at 10:27

score 1 · Answer 1 · edited Oct 14 '13 at 09:29

1

The best way to do this to set a content observer on the database and use CursorLoader to load data asynchronously.

edited Oct 14 '13 at 09:29

Angew is no longer proud of SO

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answered Oct 11 '13 at 10:13

vijay_t

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score 0 · Answer 2 · answered Oct 11 '13 at 10:26

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Request a new cursor on addition of new records

cited:

requery()
This method was deprecated in API level 11. Don't use this. Just request a new cursor, so   you can do this asynchronously and update your list view once the new cursor comes back.

answered Oct 11 '13 at 10:26

Rat-a-tat-a-tat Ratatouille

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how to know value is added in simplecursoradapter

2 Answers2