Listen to any changes in a cursor in android

问题

I would like to listen to any changes in a cursor.Is it possible to acheive this without using a contentprovider in android?

Note:(I am not using any data adapter)

Thanks

回答1:

I found that You don't need to use content Provider.When ever the data changes(like during insertions,deletions etc..) you can just call getContentResolver().notifyChange(Uri uri, ContentObserver observer) and set a contentObserver in your activity to listen for the change.

回答2:

As far as I know, if your changes in the cursor are due to requery() or some other method on the cursor like close(), then you can use a dataset observer to track the changes.

But you will need a content provider, if you want to be updated automatically when something changes in your data source, eg your sqlite database. In that case, you can check the info posted below.

What cursor are you using?

来源：https://stackoverflow.com/questions/9680916/listen-to-any-changes-in-a-cursor-in-android