Play

Hosts: John Sextro, Darryl H. Thomas and Chad Etzel
Audio Engineer and Post-Producer: Darryl H. Thomas
Released Wednesday, April 22, 2015

Tweet Shoutouts

 

The Discussion

  • Swift
    • Methods
      • Newly available to enums and structs via Swift
      • Instance methods
      • Type methods
        • class keyword in classes
        • static keyword in structs and enums
      • self
      • mutating for structs and enums
    • Subscript
      • Shortcuts for getting/setting member elements of collections.
    • Visibility

Picks

John

Darryl

  • Increasing Performance by Reducing Dynamic Dispatch – Apple Swift Blog Explains the performance impact of dynamic dispatch/indirect calls and describes three ways available in Swift to selectively eliminate dynamism: final, private and whole module optimization.

Chad

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Play

Hosts: Darryl H. Thomas and Chad Etzel
Audio Engineer and Post-Producer: Darryl H. Thomas
Released Wednesday, April 15, 2015

Tweet Shoutouts

The Discussion

  • Swift
    • Follow-up/Corrections
      • https://gist.github.com/anonymous/b53e190efb6627e020bd Implements modifying the width of a frame in Swift and Objective-C. Disassembly shows that setFrame: is called and aside from memory management and memsetting, the code is very similar.
      • “view.frame.size.width = …” behavior
    • Properties
      • structs and classes can have them
      • stored properties
      • computed properties
        • must always be declared with var, even read-only properties
        • implemented using get/set keywords followed by closures (or at least closure-like code blocks)
        • Supports a shorthand setter declaration, in which an implied newValue value is used
      • “type-properties” like static vars
        • class type-properties are computed-only
      • property observers
        • called in response to changes in a property’s value
          • willSet (custom parameter name can provide the pending new value
          • didSet
        • called every time a property’s value is set, even if the new value is equal to the current value
    • Methods
      • Newly available to enums and structs via Swift
      • Instance methods
      • Type methods
        • class keyword in classes
        • static keyword in structs and enums
      • self
      • mutating for structs and enums
    • Visibility

Picks

Darryl

Chad

Alternative show title suggestions

  • We don’t even have any show titles yet.
  • A total shot in the dark.
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Play

Hosts: John Sextro, Darryl H. Thomas and Chad Etzel
Audio Engineer and Post-Producer: Darryl H. Thomas
Released Wednesday, April 8, 2015

Tweet Shoutouts

The Discussion

Picks

Darryl

John

Chad

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  • Don’t step to me
Play

Hosts: John Sextro and Darryl H. Thomas
Audio Engineer and Post-Producer: Darryl H. Thomas
Released Friday, April 3, 2015

Tweet Shoutouts

The Discussion

Swift

  • Follow-up/Corrections
  • 2 episodes ago, Darryl mistakenly referred to Swift 1.3 beta. He meant to say 1.2 beta.
    • Tuples
      • Contents can be decomposed in a manner very similar to the decomposition of an enum value’s associated values
      • Elements can be accessed using dot notation with its zero-based index.
    • Particularly useful as the return value of functions
      • Group values into a single compound value.
      • Values need not be of the same type
      • Multiple ways of getting at the composed values
        • “_” can be used to ignore parts of a tuple.
      • Elements of a tuple can be named, and subsequently accessed by name using dot syntax.
      • If the data structure is likely to persist beyond a temporary scope, consider a class or structure instead.
  • Functions
    • syntax
    • parameters
      • local vs. external parameter names
      • variadic
      • in-out
      • default parameter values
    •  return
      • multiple return values
      • option tuple return types
      • void defined as empty tuple ()
    • function types
      • syntax
      • as parameters
      • as return types
  • Closures
    • terseness
    • Types
      • Global Functions
      • Nested Functions
      • Closure Expressions
    • Trailing Closures

Picks

Darryl

John

Alternative show title suggestions

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  • Tuples
  • Changed the rules
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  • Closed the book on closure
  • Whoever decides they want to write a blog post
Play

Hosts: Chad Etzel, John Sextro and Darryl H. Thomas
Audio Engineer and Post-Producer: Darryl H. Thomas
Released Friday, March 27, 2015

Tweet Shoutouts

The Discussion

Swift

  • Data
    • value types
      • enums
        • can have initializers, can be extended and can conform to protocols
        • Swift enums do NOT get default integer values
      • structs
        • auto-gen’ed memberwise initializers (not so in classes)
        • No ref counting, since value type
    • reference types
      • classes
        • very similar to structs (but ref type)
        • inheritance
        • Ref count for memory management
    • Swift Diff: dot syntax allows us to directly set sub-properties without intermediate assignment (reduces instance creation and malloc)
    • Rookie Question: What is the key deciding factor between creating a struct vs. class or class vs. struc?

Open Source Project of the Week

FastttCamera from IFTTT
wrapper around AVFoundation that allows you to build your own powerful custom camera app without all the headaches of using AVFoundation directly. Used to build “Do Camera”.

  • trending on GitHub this month
  • 700 stars
  • 2 contributors

Picks

Darryl

John

Chad

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  • One gripe
  • There’s so many
  • alt click
  • model layel
  • Dynamism
  • Dynomite
Play

Hosts: Chad Etzel, John Sextro and Darryl H. Thomas
Audio Engineer and Post-Producer: Darryl H. Thomas
Released Friday, March 20, 2015

Tweet Shoutouts

None :(

Send us your tweet shoutouts to @iohyespodcast

The Discussion

Swift

  • Syntax
    • variable / constant declaration / type inference
    • if/for loops
    • switch statements
    • optionals

Open Source Project of the Week

FXForms, from Nick Lockwood

Picks

John

Chad

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  • The Swiftisode
Play

Hosts: Darryl H. Thomas and John Sextro
Audio Engineer and Post-Producer: Darryl H. Thomas
Released Friday, March 13, 2015

Tweet Shoutouts

The Discussion

Apple Event Recap

  • Retail Update
    • New flagship store in West Lake, China
    • Apple is moving into China at a rapid pace
      • 6 new stores in as many weeks
      • 21 Greater China stores to date, 453 worldwide (16 countries)
      • Plans to have 40 Greater China stores by mid-2016
    • 120 million visitors last quarter
  • Apple TV
    • 25 million units sold to date
    • No apparent hardware refresh
    • Price drop from $99 to $69
    • HBO Now officially announced by HBO CEO and Ricardo Montalbon/John Boehner stunt-double Richard Plepler
      • Apple is an exclusive partner (no word on the agreement duration)
      • Available early April, timed with the 4/12 Game of Thrones season premiere
      • $14.99/month
  • iPhone
    • 700 million iPhones sold
    • 49% year-over-year sales growth, compared against 26% industry-wide
    • 99% customer sat score for iPhone 6 and 6 Plus
    • Apple Pay
      • 2500 card-issuing banks on board
      • Nearly 700k locations accepting Apple Pay across the U.S.
      • Expansion to vending machines (CocaCola Co.)
    • CarPlay
      • Every major auto manufacturer has committed to supporting CarPlay
      • >40 new models with support shipping this year
    • HomeKit
      • Lots of announcements at CES, nothing earth-shattering announced
    • Health
      • Over 900 apps for managing and tracking health/fitness
      • ResearchKit (introduced by Jeff Williams)
        • Seeks to solve several problems related to medical research
          • Small sample sizes
          • Subjective data
          • Infrequent data
          • One-way communication
        • 5 apps available currently, General availability release next month
        • Takes advantage of HealthKit info, 3rd-party bluetooth devices, GPS and direct user feedback
        • Privacy
          • Opt-in
          • User decides who to share data with
          • Apple does not see the data
        • Open source (unclear as to how they define that)
  • Mac
    • 10 years of outgrowing the industry
    • New MacBook (presented by Phil Schiller)
      • No huge surprises here. See recent ATP episodes for discussions about leaked details.
      • 12” Retina display, 2304×1440 pixels
      • Fanless design, Intel Core-M processor up to 1.3GHz
      • Terraced, contoured battery cells
      • Single USB-C port (and a headphone jack, but who’s counting?)
      • Weighs 2 lbs, 24% thinner than 11-inch MacBook Air (Does the Air brand make any sense now?)
      • Redesigned keyboard, Force Touch trackpad (with new Force Click gestures)
      • Available in Silver, Space Grey, Gold
    • MacBook Air gets faster processors, Thunderbolt 2, 2x faster flash on 13” model
    • 13” MBP gets Force Touch trackpad, faster processors, 2x faster flash and longer battery life
  • Apple Watch
    • Recap of what we learned in September
    • Kevin Lynch demos the watch in action
    • All-day battery life
      • Numbers based on 38MM model. 42MM model typically gets longer battery life
      • Up to 18 hours on a typical day
      • 3 hours talk time
      • 6.5 hours audio playback
      • 6.5 hours workout
      • 48 hours watch
      • 72 hours power reserve
      • Charges 80% in 1.5 hours, 100% in 2.5 hours
    • Pricing
      • Sport: 38MM $349, 42MM $399
      • Watch Collection: 38MM $549-$1049, 42MM $599-$1099
      • Watch Edition: Starts at $10,000, Limited availability
    • April 10 Pre-order and preview
    • Available April 24 in 9 countries

Are our development tools secure?

Picks

Darryl

John

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Play

Hosts: Chad Etzel and John Sextro
Audio Engineer and Post-Producer: John Sextro
Released Friday, March 6, 2015

Tweet Shoutouts

The Discussion

Sprite Kit using Swift

  • Sprite Kit Basics
    • Projects are organized into Scenes
    • The Scene Editor
      • Allows you to visually layout sprites and components of a scene.
    • SKView – like other views but contains a sprite kit scene
    • SKScene
    • SKSpriteNode
    • SKAction
    • Comes with a physics engine built right in….Niiiiice!
      • Physics World
        • Included in Scenes by default
        • Configurable
        • Gravity
        • Physics Bodies
        • Contact Delegate for collision detection
          • Implement SKPhysicsContactDelegate
    • Sprite Kit and Scene Kit
      • 3d vs 2d
    • Sprite Kit vs. Unity
      • Sprite Kit
        • Native
        • Free
      • Unity
        • Cross-platform
        • Superior visual scene designer
        • Built-in asset store
        • More powerful??? Than sprite kit / scene kit

Open Source Project of the Week

HLSpriteKit from Karl Voskuil
Includes gesture target, layout manager, custom SKNode subclasses, extended scene

Picks

Chad

John

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Play

Hosts: Chad Etzel, John Sextro and Darryl H. Thomas
Audio Engineer and Post-Producer: Darryl H. Thomas
Released Friday, February 27, 2015

Tweet Shoutouts

The Discussion

Generalization vs Specialization

  • Back to Work #209: Habitual Ritual
  • What causes some folks to collect hobbies/interests while others focus on and master one thing?
  • Opinion: Is It Better to Specialize or Generalize? – Nora Dunn (no, not the SNL Nora Dunn)
  • What type are we?
    • John
      • Restless. I like to learn a little bit about a lot of stuff.
      • I wish that I could learn a lot about a large number of things, but I don’t have the time nor the mental capacity.
      • I believe in the axiom that “Someone always knows more ‘Karate’” and that frustrates my efforts to go deep in any one area.
    • Chad
      • Cop-out. Somewhere in the middle.
    • Darryl
      • Generalist. I have always collected hobbies and dabbled in things superficially. This has transferred over to my professional life with two major (but complementary) career changes.
  • How does this serve us with regard to iOS development?
  • How has this hindered us?

Open-Source Project of the Week

  • DDAntennaLogger – Giovanni Lodi
    Giovanni asked what we thought of his simple remote logger. I was unfamiliar with both CocoaLumberjack and Antenna, so I’m passing the question along to our listeners. What do you folks think? Open up some issues/pull requests for Giovanni.

Picks

Chad

Darryl

  • Slender from MartianCraft is one of those rare tools that fits neatly between development and design. Slender will scan your Xcode or Web projects and provide information on how image assets are being used. Exposing retina issues, unused assets, wasted space, and designer mistakes.

John

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Play

Hosts: Chad Etzel, John Sextro and Darryl H. Thomas
Audio Engineer and Post-Producer: Darryl H. Thomas
Released Friday, February 20, 2015

Tweet Shoutouts

The Discussion

Open-Source Project of the Week

Picks

Chad

Darryl

Provides a really good summary of the changes in Swift 1.2 with a bonus section on how to implement CopyOnWrite collections using isUniquelyReferenced (as well as a plea to consider using ManagedBuffers instead).

John

  • InVision – turn your graphic mockups into a prototype.

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