DataSetObserver

public abstract class DataSetObserver
extends Object

java.lang.Object
↳	android.database.DataSetObserver

Known Direct Subclasses

AlphabetIndexer

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

Summary

Public constructors
`DataSetObserver()`

Public methods
`void`	`onChanged()` This method is called when the entire data set has changed, most likely through a call to `requery()` on a `Cursor`.
`void`	`onInvalidated()` This method is called when the entire data becomes invalid, most likely through a call to `deactivate()` or `close()` on a `Cursor`.

Inherited methods

From class


  
    java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public constructors

DataSetObserver

added in API level 1

DataSetObserver ()

Public methods

onChanged

added in API level 1

void onChanged ()

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

onInvalidated

added in API level 1

void onInvalidated ()

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

Jun	JUL	Aug
	13
2016	2017	2018

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DataSetObserver

Summary

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Public constructors

DataSetObserver

Public methods

onChanged

onInvalidated

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