ekzee

public class GA {

	private static volatile GA sInstance;

	public static GA from(Context context) {
		if (sInstance == null) {
			synchronized (GA.class) {
				if (sInstance == null) {
					sInstance = new GA(context);
				}

ekzee

public class QuickReturn implements AbsListView.OnScrollListener {

	public static QuickReturn apply(ListView listView, View targetView){
		return new QuickReturn(listView, targetView);
	}

	private final ListView mListView;
	private final View mTargetView;

	private AbsListView.OnScrollListener mOnScrollListener;