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The introduction to Reactive Programming you've been missing

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.

This currently does not work the way I want, but I want to document it for personal reference.

Scenario:

I have an app that uses a library project being build in parallel. I want to have three different build types: debug, internal, release. I want each of those to have it's own package name, app name, version number, and version code. I want to be able to at least automate a build for internal on a nightly basis and upload to HockeyApp.

Problems:

First problem I ran into was that buildTypes in gradle do not allow you to specify versionNumber or versionCode. Just suffixes for those properties. So I moved to flavors...
Unfortunately, I'm using BuildConfig and with flavors, BuildConfig.java is not found by Android Studios. Everything does work this way (I can run gradle commands from the command line just fine), but without my IDE, it's kind of hard to work. Also, a downside to this approach is that it produces too many apks. If I have the three desired build types and have to have three flavors,

	public Bitmap blurBitmap(Bitmap bitmap){

	//Let's create an empty bitmap with the same size of the bitmap we want to blur
	Bitmap outBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);

	//Instantiate a new Renderscript
	RenderScript rs = RenderScript.create(getApplicationContext());

	//Create an Intrinsic Blur Script using the Renderscript
	ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));

	package com.nexus5.dos;

	import android.content.Intent;
	import android.support.v7.app.ActionBarActivity;
	import android.os.Bundle;
	import android.view.Menu;
	import android.view.MenuItem;
	import android.view.View;
	import android.widget.Button;
	public class MainActivity extends ActionBarActivity {

	<?xml version="1.0" encoding="utf-8"?>
	<manifest
	xmlns:android="http://schemas.android.com/apk/res/android"
	package="com.novoda.espresso">

	<!-- For espresso testing purposes, this is removed in live builds, but not in dev builds -->
	<uses-permission android:name="android.permission.SET_ANIMATION_SCALE" />

	<!-- ... -->

	/*
	* 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

	replaceInManifest = {variant, fromString, toString ->
	def flavor = variant.productFlavors.get(0)
	def buildtype = variant.buildType
	def manifestFile = "$buildDir/manifests/${flavor.name}/${buildtype.name}/AndroidManifest.xml"
	def updatedContent = new File(manifestFile).getText('UTF-8').replaceAll(fromString, toString)
	new File(manifestFile).write(updatedContent, 'UTF-8')
	}

	# coding: utf-8
	from flask import request, g
	from functools import wraps
	from flask import abort, session, redirect, url_for, flash
	from .models import Topic, Attachment
	from . import roles


	def require_visitor(func):
	"""仅允许非登陆用户访问，如signin页面"""

	// Change font (ctrl a)
	var doc = context.document,
	selection = context.selection,
	font_name = [doc askForUserInput:"Font name:" initialValue:"Arial"];

	function check_layer(layer){
	log(layer)
	var className = layer.className()
	log("Checking layer " + layer + " of klass: " + className)
	if (className == "MSTextLayer") {

	import os
	import uuid
	from PIL import Image
	from flask.ext.uploads import extension


	def random_filename():
	"""生成伪随机uuid字符串，用做文件名"""
	return str(uuid.uuid4())