DefaultLifecycleObserver

Kotlin |Java

public interface DefaultLifecycleObserver
implements LifecycleObserver

androidx.lifecycle.DefaultLifecycleObserver

Callback interface for listening to LifecycleOwner state changes.

If you use Java 8 language, always prefer it over annotations.

If a class implements both this interface and LifecycleEventObserver, then methods of DefaultLifecycleObserver will be called first, and then followed by the call of LifecycleEventObserver.onStateChanged(LifecycleOwner, Lifecycle.Event)

If a class implements this interface and in the same time uses OnLifecycleEvent, then annotations will be ignored.

Summary

Public methods
`default void`	`onCreate(LifecycleOwner owner)` Notifies that `ON_CREATE` event occurred.
`default void`	`onDestroy(LifecycleOwner owner)` Notifies that `ON_DESTROY` event occurred.
`default void`	`onPause(LifecycleOwner owner)` Notifies that `ON_PAUSE` event occurred.
`default void`	`onResume(LifecycleOwner owner)` Notifies that `ON_RESUME` event occurred.
`default void`	`onStart(LifecycleOwner owner)` Notifies that `ON_START` event occurred.
`default void`	`onStop(LifecycleOwner owner)` Notifies that `ON_STOP` event occurred.

public void onCreate (LifecycleOwner owner)

Notifies that ON_CREATE event occurred.

This method will be called after the LifecycleOwner's onCreate method returns.

Parameters
`owner`	`LifecycleOwner`: the component, whose state was changed

public void onDestroy (LifecycleOwner owner)

Notifies that ON_DESTROY event occurred.

This method will be called before the LifecycleOwner's onDestroy method is called.

Parameters
`owner`	`LifecycleOwner`: the component, whose state was changed

public void onPause (LifecycleOwner owner)

Notifies that ON_PAUSE event occurred.

This method will be called before the LifecycleOwner's onPause method is called.

Parameters
`owner`	`LifecycleOwner`: the component, whose state was changed

public void onResume (LifecycleOwner owner)

Notifies that ON_RESUME event occurred.

This method will be called after the LifecycleOwner's onResume method returns.

Parameters
`owner`	`LifecycleOwner`: the component, whose state was changed

public void onStart (LifecycleOwner owner)

Notifies that ON_START event occurred.

This method will be called after the LifecycleOwner's onStart method returns.

Parameters
`owner`	`LifecycleOwner`: the component, whose state was changed

public void onStop (LifecycleOwner owner)

Notifies that ON_STOP event occurred.

This method will be called before the LifecycleOwner's onStop method is called.

Parameters
`owner`	`LifecycleOwner`: the component, whose state was changed