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DataSetObserver
abstract class DataSetObserver
Known Direct Subclasses
AlphabetIndexer |
A helper class for adapters that implement the SectionIndexer interface.
|
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Receives call backs when a data set has been changed, or made invalid. The typically data sets that are observed are Cursor
s or android.widget.Adapter
s. DataSetObserver must be implemented by objects which are added to a DataSetObservable.
Summary
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 .
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open Unit |
This method is called when the entire data becomes invalid, most likely through a call to Cursor#deactivate() or android.
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Public constructors
DataSetObserver
DataSetObserver()
Public methods
onChanged
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
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
.
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Last updated 2024-04-04 UTC.
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