Observable
  public
  
  
  
  interface
  Observable
  
  
  
| android.databinding.Observable | 
|  | 
Observable classes provide a way in which data bound UI can be notified of changes.
 ObservableList and ObservableMap also provide the ability to notify when
 changes occur. ObservableField, ObservableParcelable, ObservableBoolean, ObservableByte,
 ObservableShort, ObservableInt, ObservableLong, ObservableFloat, and ObservableDouble provide
 a means by which properties may be notified without implementing Observable.
 
 An Observable object should notify the Observable.OnPropertyChangedCallback whenever
 an observed property of the class changes.
 
 The getter for an observable property should be annotated with Bindable.
 
Convenience class BaseObservable implements this interface and PropertyChangeRegistry can help classes that don't extend BaseObservable to implement the listener registry.
Summary
| Nested classes | |
|---|---|
| 
        
        
        
        
        class | Observable.OnPropertyChangedCallbackThe callback that is called by Observable when an observable property has changed. | 
| Public methods | |
|---|---|
| 
        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 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. | 
removeOnPropertyChangedCallback
void removeOnPropertyChangedCallback (Observable.OnPropertyChangedCallback callback)
Removes a callback from those listening for changes.
| Parameters | |
|---|---|
| callback | Observable.OnPropertyChangedCallback: The callback that should stop listening. | 
- Annotations
- Interfaces
- Classes- BaseObservable
- CallbackRegistry
- CallbackRegistry.NotifierCallback
- DataBindingUtil
- ListChangeRegistry
- MapChangeRegistry
- MergedDataBinderMapper
- Observable.OnPropertyChangedCallback
- ObservableArrayList
- ObservableArrayMap
- ObservableBoolean
- ObservableByte
- ObservableChar
- ObservableDouble
- ObservableField
- ObservableFloat
- ObservableInt
- ObservableList.OnListChangedCallback
- ObservableLong
- ObservableMap.OnMapChangedCallback
- ObservableParcelable
- ObservableShort
- OnRebindCallback
- PropertyChangeRegistry
- ViewDataBinding
- ViewStubProxy
 
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Last updated 2025-02-10 UTC.
