How SupportActicity implements LifecycleOwner for Internals of Android Architecture Components Part II- LiveData

SupportActivityLifecycleOwner.java

public class SupportActivity extends Activity implements LifecycleOwner {

    ...

    private LifecycleRegistry mLifecycleRegistry = new LifecycleRegistry(this);

    ...

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        mLifecycleRegistry.markState(Lifecycle.State.CREATED);
        super.onSaveInstanceState(outState);
    }

    ...

    @Override
    public Lifecycle getLifecycle() {
        return mLifecycleRegistry;
    }
}