Skip to content

Most visited

Recently visited



public static abstract class Observable.OnPropertyChangedCallback
extends Object

   ↳ android.databinding.Observable.OnPropertyChangedCallback

The callback that is called by Observable when an observable property has changed.


Public constructors


Public methods

abstract void onPropertyChanged(Observable sender, int propertyId)

Called by an Observable whenever an observable property changes.

Inherited methods

From class java.lang.Object

Public constructors


Observable.OnPropertyChangedCallback ()

Public methods


void onPropertyChanged (Observable sender, 
                int propertyId)

Called by an Observable whenever an observable property changes.

sender Observable: The Observable that is changing.

propertyId int: The BR identifier of the property that has changed. The getter for this property should be annotated with Bindable.

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


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. (Dec 2017 Android Platform & Tools Survey)