Cheng Han HanCheng

The introduction to Reactive Programming you've been missing

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

This list has been superseded by Public APIs. Check there for APIs with Auth: No, HTTPS and CORS Yes.

List of data APIs that require no server-side auth or private credentials, and are thus good for small browser-only JS projects.

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:


	import android.content.Context;
	import android.support.design.widget.CoordinatorLayout;
	import android.support.design.widget.Snackbar;
	import android.support.v4.view.ViewCompat;
	import android.support.v4.view.ViewPropertyAnimatorListener;
	import android.util.AttributeSet;
	import android.view.View;

	import com.github.clans.fab.FloatingActionMenu;

	/**
	* Custom Scroll listener for RecyclerView.
	* Based on implementation https://gist.github.com/ssinss/e06f12ef66c51252563e
	*/
	public abstract class EndlessRecyclerOnScrollListener extends RecyclerView.OnScrollListener {
	public static String TAG = "EndlessScrollListener";

	private int previousTotal = 0; // The total number of items in the dataset after the last load
	private boolean loading = true; // True if we are still waiting for the last set of data to load.
	private int visibleThreshold = 5; // The minimum amount of items to have below your current scroll position before loading more.


	import android.graphics.Color;
	import android.os.Bundle;
	import android.support.annotation.Nullable;
	import android.support.v4.app.Fragment;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.view.ViewGroup;
	import android.view.ViewTreeObserver;
	import android.view.animation.AccelerateInterpolator;

	/*
	* Copyright 2014 Chris Banes
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software

	import android.support.v7.widget.LinearLayoutManager;
	import android.support.v7.widget.RecyclerView;

	public abstract class EndlessRecyclerOnScrollListener extends RecyclerView.OnScrollListener {
	public static String TAG = EndlessRecyclerOnScrollListener.class.getSimpleName();

	private int previousTotal = 0; // The total number of items in the dataset after the last load
	private boolean loading = true; // True if we are still waiting for the last set of data to load.
	private int visibleThreshold = 5; // The minimum amount of items to have below your current scroll position before loading more.
	int firstVisibleItem, visibleItemCount, totalItemCount;