Skip to content

Most visited

Recently visited

navigation

ContentObservable

public class ContentObservable
extends Observable<ContentObserver>

java.lang.Object
   ↳ android.database.Observable<android.database.ContentObserver>
     ↳ android.database.ContentObservable


A specialization of Observable for ContentObserver that provides methods for sending notifications to a list of ContentObserver objects.

Summary

Inherited fields

From class android.database.Observable

Public constructors

ContentObservable()

Public methods

void dispatchChange(boolean selfChange)

This method was deprecated in API level 16. Use dispatchChange(boolean, Uri) instead.

void dispatchChange(boolean selfChange, Uri uri)

Invokes dispatchChange(boolean, Uri) on each observer.

void notifyChange(boolean selfChange)

This method was deprecated in API level 16. Use dispatchChange(boolean) instead.

void registerObserver(ContentObserver observer)

Adds an observer to the list.

Inherited methods

From class android.database.Observable
From class java.lang.Object

Public constructors

ContentObservable

added in API level 1
ContentObservable ()

Public methods

dispatchChange

added in API level 1
void dispatchChange (boolean selfChange)

This method was deprecated in API level 16.
Use dispatchChange(boolean, Uri) instead.

Invokes dispatchChange(boolean) on each observer.

If selfChange is true, only delivers the notification to the observer if it has indicated that it wants to receive self-change notifications by implementing deliverSelfNotifications() to return true.

Parameters
selfChange boolean: True if this is a self-change notification.

dispatchChange

added in API level 16
void dispatchChange (boolean selfChange, 
                Uri uri)

Invokes dispatchChange(boolean, Uri) on each observer. Includes the changed content Uri when available.

If selfChange is true, only delivers the notification to the observer if it has indicated that it wants to receive self-change notifications by implementing deliverSelfNotifications() to return true.

Parameters
selfChange boolean: True if this is a self-change notification.

uri Uri: The Uri of the changed content, or null if unknown.

notifyChange

added in API level 1
void notifyChange (boolean selfChange)

This method was deprecated in API level 16.
Use dispatchChange(boolean) instead.

Invokes onChange(boolean) on each observer.

Parameters
selfChange boolean: True if this is a self-change notification.

registerObserver

added in API level 1
void registerObserver (ContentObserver observer)

Adds an observer to the list. The observer cannot be null and it must not already be registered.

Parameters
observer ContentObserver: the observer to register

This site uses cookies to store your preferences for site-specific language and display options.

Get the latest Android developer news and tips that will help you find success on Google Play.

* Required Fields

Hooray!

Follow Google Developers on WeChat

Browse this site in ?

You requested a page in , but your language preference for this site is .

Would you like to change your language preference and browse this site in ? If you want to change your language preference later, use the language menu at the bottom of each page.

This class requires API level or higher

This doc is hidden because your selected API level for the documentation is . You can change the documentation API level with the selector above the left navigation.

For more information about specifying the API level your app requires, read Supporting Different Platform Versions.

Take a short survey?
Help us improve the Android developer experience.
(Sep 2017 survey)