Added in API level 1

DataSetObserver


abstract class DataSetObserver
kotlin.Any
   ↳ android.database.DataSetObserver

Receives call backs when a data set has been changed, or made invalid. The typically data sets that are observed are Cursors or android.widget.Adapters. DataSetObserver must be implemented by objects which are added to a DataSetObservable.

Summary

Public constructors

Public methods
open Unit

This method is called when the entire data set has changed, most likely through a call to Cursor#requery() on a Cursor.

open Unit

This method is called when the entire data becomes invalid, most likely through a call to Cursor#deactivate() or android.

Public constructors

DataSetObserver

DataSetObserver()

Public methods

onChanged

Added in API level 1
open fun onChanged(): Unit

This method is called when the entire data set has changed, most likely through a call to Cursor#requery() on a Cursor.

onInvalidated

Added in API level 1
open fun onInvalidated(): Unit

This method is called when the entire data becomes invalid, most likely through a call to Cursor#deactivate() or android.database.Cursor#close() on a Cursor.