Rafa Barberá rbarbera

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.

##Generate and Install IPA's file in device through Command Line

###Thanks to Mattt and phonegap's scripts

Take a note: all this steps can be automatized in a single script, if you know how to write it. (Bash or Ruby will be fine)

1.- Install your Provisioning Profile and Developer Certificate

2.- Install Shenzhen and ios-deploy: the firstone will generate the IPA file and the secondone will install it onto your device

	self.view.layer.anchorPoint = CGPointMake(0.50, 1.0);
	CAKeyframeAnimation *bounceAnimation = [CAKeyframeAnimation animationWithKeyPath:@"transform.scale"];

	bounceAnimation.values = [NSArray arrayWithObjects:
	[NSNumber numberWithFloat:0.05],
	[NSNumber numberWithFloat:1.08],
	[NSNumber numberWithFloat:0.92],
	[NSNumber numberWithFloat:1.0],
	nil];

	#import <UIKit/UIKit.h>

	@interface UIView (SMFrameAdditions)

	@property (nonatomic, assign) CGPoint $origin;
	@property (nonatomic, assign) CGSize $size;
	@property (nonatomic, assign) CGFloat $x, $y, $width, $height; // normal rect properties
	@property (nonatomic, assign) CGFloat $left, $top, $right, $bottom; // these will stretch the rect

	@end

	#import <Foundation/Foundation.h>

	@interface NSObject (NSDictionaryRepresentation)

	/**
	Returns an NSDictionary containing the properties of an object that are not nil.
	*/
	- (NSDictionary *)dictionaryRepresentation;

	@end

	#pragma mark - Embed Video

	- (UIWebView )embedVideoYoutubeWithURL:(NSString )urlString andFrame:(CGRect)frame {
	NSString *videoID = [self extractYoutubeVideoID:urlString];

	NSString *embedHTML = @"\
	<html><head>\
	<style type=\"text/css\">\
	body {\
	background-color: transparent;\

	- (id)init
	{
	UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainInterface" bundle:nil];
	self = [storyboard instantiateViewControllerWithIdentifier:@"MyControllerIdentifier"];

	// Set up ivars here. 'self' won't be nil; if it is, you passed an invalid identifier
	// and UIKit would have thrown an exception anyway.

	return self;
	}

	#import <Foundation/Foundation.h>

	@interface MySingleton : NSObject

	+(instancetype) sharedInstance;

	// clue for improper use (produces compile time error)
	+(instancetype) alloc __attribute__((unavailable("alloc not available, call sharedInstance instead")));
	-(instancetype) init __attribute__((unavailable("init not available, call sharedInstance instead")));
	+(instancetype) new __attribute__((unavailable("new not available, call sharedInstance instead")));

	//
	// CollectionViewDataSource.swift
	// Khan Academy
	//
	// Created by Andy Matuschak on 10/14/14.
	// Copyright (c) 2014 Khan Academy. All rights reserved.
	//

	import UIKit

	protocol OptionalType {
	typealias T
	var optional: T? { get }
	}

	extension Optional : OptionalType {
	var optional: T? { return self }
	}

	extension SequenceType where Generator.Element: OptionalType {