added in version 1.0.0
belongs to Maven artifact android.arch.lifecycle:livedata-core:1.1.1

Observer

The android.arch Architecture Components packages are no longer maintained. They have been superseded by the corresponding androidx.* packages. See androidx.lifecycle.Observer instead.

public interface Observer

android.arch.lifecycle.Observer<T>

---

A simple callback that can receive from LiveData.

See also:

• LiveData - for a usage description.

Summary

Public methods
abstract void	onChanged(T t) Called when the data is changed.

Public methods

onChanged

added in version 1.0.0

void onChanged (T t)

Called when the data is changed.

Parameters
t	T: The new data

• Annotations

  • OnLifecycleEvent

• Interfaces

  • DefaultLifecycleObserver
  • LifecycleObserver
  • LifecycleOwner
  • LifecycleRegistryOwner
  • Observer
  • ViewModelProvider.Factory
  • ViewModelStoreOwner

• Classes

  • AndroidViewModel
  • Lifecycle
  • LifecycleRegistry
  • LifecycleService
  • LiveData
  • LiveDataReactiveStreams
  • MediatorLiveData
  • MutableLiveData
  • ProcessLifecycleOwner
  • ServiceLifecycleDispatcher
  • Transformations
  • ViewModel
  • ViewModelProvider
  • ViewModelProvider.AndroidViewModelFactory
  • ViewModelProvider.NewInstanceFactory
  • ViewModelProviders
  • ViewModelProviders.DefaultFactory
  • ViewModelStore
  • ViewModelStores

• Enums

  • Lifecycle.Event
  • Lifecycle.State