Liang Song pkliang

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

There are always 24 hours in a day.
February is always 28 days long.
Any 24-hour period will always begin and end in the same day (or week, or month).

Writing Resilient Reactive Applications

This guide is a first draft (that will end up in the official docs) on writing resilient code for production with the Couchbase Java SDK. At the end, the reader will be able to write code that withstands bugs, latency issues or anything else that can make their application fail.

Note that lots of concepts can be applied for both synchronous and asynchronous access. When necessary, both patterns are discussed separately. Also, the focus is on database interaction, but if you are using RxJava as part of your stack you can apply most of the principles there as well (and should!).

RxJava 101 Recap: Cold and Hot Observables

When working with Observables, it is important to understand the difference between cold and hot. Cold Observables will start to emit events once a Observer subscribes, and will do it "fresh" for each Observer. Hot Observables instead are starting to emit data as soon as it becomes available, and will return the same (or parts of the same)

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

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.

	/*
	* BottomNavigationLayout library for Android
	* Copyright (c) 2016. Nikola Despotoski (http://github.com/NikolaDespotoski).
	* 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

	/**
	* 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.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;

	Unless specified otherwise, all of the below tinting applies to both Lollipop and pre-Lollipop using AppCompat v21. To use the support version of these attributes, remove the android namespace. For instance, "android:colorControlNormal" becomes "colorControlNormal". These attributes will be propagated to their corresponding attributes within the android namespace for devices running Lollipop. Any exceptions to this will be noted by including the "android:" prefix.

	All Clickable Views:
	-----------
	* ripple effect (Lollipop only) -- "colorControlHighlight"

	Status Bar:
	------------
	* background (Lollipop only) - "colorPrimaryDark"

	package com.aracem.utils.animations.pagetransformation;

	import org.jetbrains.annotations.NotNull;

	import android.support.v4.view.ViewPager;
	import android.view.View;

	import java.util.ArrayList;
	import java.util.List;

	package com.firebase.client;

	import com.firebase.client.core.Constants;
	import rx.Observable;
	import rx.Subscriber;
	import rx.functions.Action0;
	import rx.functions.Func1;
	import rx.subscriptions.Subscriptions;

	public class RxFirebase {