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BaseObservable

public class BaseObservable
extends Object implements Observable

java.lang.Object
↳ android.databinding.BaseObservable
Known Direct Subclasses
ObservableBoolean An observable class that holds a primitive boolean.
ObservableByte An observable class that holds a primitive byte.
ObservableChar An observable class that holds a primitive char.
ObservableDouble An observable class that holds a primitive double.
ObservableField<T> An object wrapper to make it observable.
ObservableFloat An observable class that holds a primitive float.
ObservableInt An observable class that holds a primitive int.
ObservableLong An observable class that holds a primitive long.
ObservableShort An observable class that holds a primitive short.
ViewDataBinding Base class for generated data binding classes.
Known Indirect Subclasses
ObservableParcelable<T extends Parcelable> An observable class that holds a parcelable object.

A convenience class that implements Observable interface and provides notifyPropertyChanged(int) and notifyChange() methods.

Summary

Public constructors

BaseObservable()

Public methods

void addOnPropertyChangedCallback(Observable.OnPropertyChangedCallback callback)

Adds a callback to listen for changes to the Observable.

void notifyChange()

Notifies listeners that all properties of this instance have changed.

void notifyPropertyChanged(int fieldId)

Notifies listeners that a specific property has changed.

void removeOnPropertyChangedCallback(Observable.OnPropertyChangedCallback callback)

Removes a callback from those listening for changes.

Inherited methods

From class java.lang.Object
Object clone()
boolean equals(Object arg0)
void finalize()
final Class<?> getClass()
int hashCode()
final void notify()
final void notifyAll()
String toString()
final void wait(long arg0, int arg1)
final void wait(long arg0)
final void wait()
From interface android.databinding.Observable
abstract void addOnPropertyChangedCallback(Observable.OnPropertyChangedCallback callback)

Adds a callback to listen for changes to the Observable.

abstract void removeOnPropertyChangedCallback(Observable.OnPropertyChangedCallback callback)

Removes a callback from those listening for changes.

Public constructors

BaseObservable

BaseObservable ()

Public methods

addOnPropertyChangedCallback

void addOnPropertyChangedCallback (Observable.OnPropertyChangedCallback callback)

Adds a callback to listen for changes to the Observable.

Parameters
callback Observable.OnPropertyChangedCallback: The callback to start listening.

notifyChange

void notifyChange ()

Notifies listeners that all properties of this instance have changed.

notifyPropertyChanged

void notifyPropertyChanged (int fieldId)

Notifies listeners that a specific property has changed. The getter for the property that changes should be marked with Bindable to generate a field in BR to be used as fieldId.

Parameters
fieldId int: The generated BR id for the Bindable field.

removeOnPropertyChangedCallback

void removeOnPropertyChangedCallback (Observable.OnPropertyChangedCallback callback)

Removes a callback from those listening for changes.

Parameters
callback Observable.OnPropertyChangedCallback: The callback that should stop listening.

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Last updated 2025年02月10日 UTC.