Fragment providing separate lifecycle owners for each created view hierarchy.

ViewLifecycleFragment.java

package be.digitalia.archcomponentsfix.fragment;

import android.arch.lifecycle.Lifecycle.Event;
import android.arch.lifecycle.LifecycleOwner;
import android.arch.lifecycle.LifecycleRegistry;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.View;

/**
 * Fragment providing separate lifecycle owners for each created view hierarchy.
 * <p>
 * This is one possible way to solve issue https://github.com/googlesamples/android-architecture-components/issues/47
 *
 * @author Christophe Beyls
 */
public class ViewLifecycleFragment extends Fragment {

	static class ViewLifecycleOwner implements LifecycleOwner {
		private final LifecycleRegistry lifecycleRegistry = new LifecycleRegistry(this);

		@Override
		public LifecycleRegistry getLifecycle() {
			return lifecycleRegistry;
		}
	}

	@Nullable
	private ViewLifecycleOwner viewLifecycleOwner;

	/**
	 * @return the Lifecycle owner of the current view hierarchy,
	 * or null if there is no current view hierarchy.
	 */
	@Nullable
	public LifecycleOwner getViewLifecycleOwner() {
		return viewLifecycleOwner;
	}

	@Override
	public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
		super.onViewCreated(view, savedInstanceState);
		viewLifecycleOwner = new ViewLifecycleOwner();
		viewLifecycleOwner.getLifecycle().handleLifecycleEvent(Event.ON_CREATE);
	}

	@Override
	public void onStart() {
		super.onStart();
		if (viewLifecycleOwner != null) {
			viewLifecycleOwner.getLifecycle().handleLifecycleEvent(Event.ON_START);
		}
	}

	@Override
	public void onResume() {
		super.onResume();
		if (viewLifecycleOwner != null) {
			viewLifecycleOwner.getLifecycle().handleLifecycleEvent(Event.ON_RESUME);
		}
	}

	@Override
	public void onPause() {
		if (viewLifecycleOwner != null) {
			viewLifecycleOwner.getLifecycle().handleLifecycleEvent(Event.ON_PAUSE);
		}
		super.onPause();
	}

	@Override
	public void onStop() {
		if (viewLifecycleOwner != null) {
			viewLifecycleOwner.getLifecycle().handleLifecycleEvent(Event.ON_STOP);
		}
		super.onStop();
	}

	@Override
	public void onDestroyView() {
		if (viewLifecycleOwner != null) {
			viewLifecycleOwner.getLifecycle().handleLifecycleEvent(Event.ON_DESTROY);
			viewLifecycleOwner = null;
		}
		super.onDestroyView();
	}
}

I can't seem to find handleLifecycleEventfun inside lifecycle