JaviSoto

#import <ReactiveCocoa/RACQueueScheduler+Subclass.h>

/**
 * This scheduler class schedules values sent down a signal on the main thread synchronously 
 * if they're sent on the main thread as opposed to RACScheduler.mainThreadScheduler 
 * which always sends values asynchronously.
 */
@interface PBMainThreadSynchronousScheduler : RACQueueScheduler

+ (instancetype)mainThreadSynchronousScheduler;

JaviSoto

ReactiveCocoa

A lot is being written these days about ReactiveCocoa and the paradigms it introduces. In my opinion, there are only two sides giving their opinion: the ones that know a lot about it and are therefore obviously biased, and the ones that refuse to learn it.

I decided to write something myself because I think I'm right in the middle. Some months ago I knew nothing about it, and now I know enough to want to use it every day. I hope that by not being an expert, I can actual introduce a few really simple ideas in a much easier way to pick up by new-commers, to show why I think ReactiveCocoa is an incredibly powerful tool to help us write better, cleaner, and more maintainable code.

It's signals all the way down

The base of everything that happens in ReactiveCocoa is signals. I'm going to try to explain what they represent and why they fit in the way we think about what happens on an app. A lot of the things you may read about Functional Reactive Programming end up confusing you when

JaviSoto

- (void)tapIntoViewControllerWillAppear {
  @weakify(self);
  [[[[[[[RACSignal interval:0.1f onScheduler:[RACScheduler mainThreadScheduler]] takeUntil:self.rac_willDeallocSignal] flattenMap:^RACStream *(id value) {
    @strongify(self);
    
    return [RACSignal return:self.pb_viewController];
  }] ignore:nil] take:1] flattenMap:^RACStream *(UIViewController *viewController) {
    return [viewController rac_signalForSelector:@selector(viewWillAppear:)];
  }] subscribeNext:^(id x) {
    @strongify(self);

JaviSoto

Keybase proof

I hereby claim:

• I am javisoto on github.
• I am javisoto (https://keybase.io/javisoto) on keybase.
• I have a public key whose fingerprint is A401 6A03 CA78 5463 EF54 B0B1 4196 06D9 0B5A BAFD

To claim this, I am signing this object:

JaviSoto

#!/bin/bash

# https://gist.github.com/949831
# http://blog.carbonfive.com/2011/05/04/automated-ad-hoc-builds-using-xcode-4/

# command line OTA distribution references and examples
# http://nachbaur.com/blog/how-to-automate-your-iphone-app-builds-with-hudson
# http://nachbaur.com/blog/building-ios-apps-for-over-the-air-adhoc-distribution
# http://blog.octo.com/en/automating-over-the-air-deployment-for-iphone/
# http://www.neat.io/posts/2010/10/27/automated-ota-ios-app-distribution.html

JaviSoto

struct Set<T: AnyObject> : Printable {
    typealias ElementType = (T: AnyObject)

    var set: NSMutableSet

    init() {
        self.init(array: [] )
    }

    init(array: ElementType[]) {

JaviSoto

• You can find the article published here: http://www.javiersoto.me/post/106875422394
• For questions, it's also available on Github: https://github.com/JaviSoto/Blog-Posts/blob/master/Functor%20and%20Monad%20in%20Swift/FunctorAndMonad.md

JaviSoto

on run taskName

tell application "iCal"
     tell calendar "WhateverYourReminderListIsCalled"
          make new todo at end with properties {summary:taskName}
     end tell
end tell
end run

JaviSoto

// Smart little helper to find main thread hangs. Enable in appDidFinishLaunching.
// Only available with source code in DEBUG mode.
@interface PSPDFHangDetector : NSObject
+ (void)startHangDetector;
@end


@implementation PSPDFHangDetector
+ (void)startHangDetector {
#ifdef DEBUG

JaviSoto

#include "pebble_os.h"
#include "pebble_app.h"
#include "pebble_fonts.h"


#define MY_UUID { 0x57, 0xFF, 0x75, 0x31, 0x72, 0x97, 0x46, 0x0A, 0x86, 0x02, 0x6F, 0x6F, 0x79, 0xEA, 0x4E, 0xE4 }
PBL_APP_INFO(MY_UUID,
             "Watchface", "Javier Soto",
             1, 0, /* App version */
             DEFAULT_MENU_ICON,