ComponentActivity

Kotlin |Java

public class ComponentActivity implements ContextAware, LifecycleOwner, ViewModelStoreOwner, HasDefaultViewModelProviderFactory, LifecycleOwner, SavedStateRegistryOwner, LifecycleOwner, OnBackPressedDispatcherOwner, ActivityResultRegistryOwner, ActivityResultCaller, MenuHost

Known direct subclasses

FragmentActivity

FragmentActivity

Base class for activities that want to use the support-based Fragments.

Known indirect subclasses

AppCompatActivity, CarAppActivity

AppCompatActivity	Base class for activities that wish to use some of the newer platform features on older Android devices.
CarAppActivity	The class representing a car app activity.

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Base class for activities that enables composition of higher level components.

Rather than all functionality being built directly into this class, only the minimal set of lower level building blocks are included. Higher level components can then be used as needed without enforcing a deep Activity class hierarchy or strong coupling between components.

Summary

Public constructors
ComponentActivity() Default constructor for ComponentActivity.
ComponentActivity(@LayoutRes @NonNull int contentLayoutId) Alternate constructor that can be used to provide a default layout that will be inflated as part of super.onCreate(savedInstanceState).

Public methods
@Override @NonNull void	addContentView(@NonNull View view, @NonNull ViewGroup.LayoutParams params)
@Override @NonNull void	addMenuProvider(@NonNull MenuProvider provider) Adds the given MenuProvider to this MenuHost.
@Override @NonNull void	addMenuProvider(     @NonNull MenuProvider provider,     @NonNull LifecycleOwner owner ) Adds the given MenuProvider to this MenuHost.
@Override @NonNull void	addMenuProvider(     @NonNull MenuProvider provider,     @NonNull LifecycleOwner owner,     @NonNull Lifecycle.State state ) Adds the given MenuProvider to this MenuHost once the given LifecycleOwner reaches the given Lifecycle.State.
final @Override @NonNull void	addOnContextAvailableListener(     @NonNull OnContextAvailableListener listener ) Add a new for receiving a callback for when this class is associated with a .
final @NonNull @Override ActivityResultRegistry	getActivityResultRegistry() Get the ActivityResultRegistry associated with this activity.
@NonNull @Override ViewModelProvider.Factory	getDefaultViewModelProviderFactory() Returns the default that should be used when no custom Factory} is provided to the constructors.
@Nullable Object	getLastCustomNonConfigurationInstance() This method is deprecated. Use a androidx.lifecycle.ViewModel to store non config state.
@NonNull @Override Lifecycle	getLifecycle() Overriding this method is no longer supported and this method will be made final in a future version of ComponentActivity.
final @NonNull @Override OnBackPressedDispatcher	getOnBackPressedDispatcher() Retrieve the OnBackPressedDispatcher that will be triggered when onBackPressed is called.
final @NonNull @Override SavedStateRegistry	getSavedStateRegistry() Returns owned SavedStateRegistry
@NonNull @Override ViewModelStore	getViewModelStore() Returns the ViewModelStore associated with this activity
@Override @NonNull void	invalidateMenu() Invalidates the android.view.Menu to ensure that what is displayed matches the current internal state of the menu.
@Override @MainThread @NonNull void	onBackPressed() Called when the activity has detected the user's press of the back key.
@Override @NonNull boolean	onCreateOptionsMenu(@NonNull Menu menu)
@Override @NonNull boolean