Package icyllis.modernui.lifecycle

Interface LifecycleObserver

public interface LifecycleObserver
Callback interface for listening to LifecycleOwner state changes.

Methods like onCreate(LifecycleOwner) will be called first, and then followed by the call of onStateChanged(LifecycleOwner, Lifecycle.Event).

  • Method Details

    • onCreate

      default void onCreate(@Nonnull LifecycleOwner owner)
      Notifies that ON_CREATE event occurred.

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

      Parameters:
      owner - the component, whose state was changed

    • onStart

      default void onStart(@Nonnull LifecycleOwner owner)
      Notifies that ON_START event occurred.

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

      Parameters:
      owner - the component, whose state was changed

    • onResume

      default void onResume(@Nonnull LifecycleOwner owner)
      Notifies that ON_RESUME event occurred.

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

      Parameters:
      owner - the component, whose state was changed

    • onPause

      default void onPause(@Nonnull LifecycleOwner owner)
      Notifies that ON_PAUSE event occurred.

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

      Parameters:
      owner - the component, whose state was changed

    • onStop

      default void onStop(@Nonnull LifecycleOwner owner)
      Notifies that ON_STOP event occurred.

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

      Parameters:
      owner - the component, whose state was changed

    • onDestroy

      default void onDestroy(@Nonnull LifecycleOwner owner)
      Notifies that ON_DESTROY event occurred.

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

      Parameters:
      owner - the component, whose state was changed

    • onStateChanged

      default void onStateChanged(@Nonnull LifecycleOwner source, @Nonnull Lifecycle.Event event)
      Called when a state transition event happens.
      Parameters:
      source - The source of the event
      event - The event