RecyclerView that calls onAttachedToWindow/onDetachedFromWindow on its adapter

WindowAware.java

public interface WindowAware {
    
    public void onAttachedToWindow();
    public void onDetachedFromWindow();
    
}

WindowAwareRecyclerView.java

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.util.AttributeSet;

public class WindowAwareRecyclerView extends RecyclerView {
    
    private boolean attachedToWindow;

    public WindowAwareRecyclerView(Context context) {
        super(context);
    }

    public WindowAwareRecyclerView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public WindowAwareRecyclerView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    public void setAdapter(Adapter adapter) {
        final Adapter oldAdapter = getAdapter();
        if (attachedToWindow && oldAdapter instanceof WindowAware) ((WindowAware)adapter).onDetachedFromWindow();
        super.setAdapter(adapter);
        if (attachedToWindow && adapter instanceof WindowAware) ((WindowAware)adapter).onAttachedToWindow();
    }

    @Override
    protected void onAttachedToWindow() {
        attachedToWindow = true;
        super.onAttachedToWindow();
        final Adapter adapter = getAdapter();
        if (adapter instanceof WindowAware) ((WindowAware)adapter).onAttachedToWindow();
    }

    @Override
    protected void onDetachedFromWindow() {
        attachedToWindow = false;
        super.onDetachedFromWindow();
        final Adapter adapter = getAdapter();
        if (adapter instanceof WindowAware) ((WindowAware)adapter).onDetachedFromWindow();
    }
    
}