Story behind “The Song”

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The Song (aka FIGHT THE FEELS!!)

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Philly Dev Spotlight: WorkFlow

Our good friends, Conrad Kramer and Ariel Weinstein are at it again. They just release a new app called WorkFlow. It’s very popular now and has hit #1 spot in a few places on the App Store. Be sure to give them some love! Awesome job!

WorkFlow website

Macstories Article

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December Meeting Agenda

The next Philly CocoaHeads meeting will be Thursday, December 11th from 6:30pm - 9pm at the Apple Store on 16th and Walnut. After meeting drinks will commence at Ladder 15 located at 1528 Sansom Street.

Please RSVP via Meetup:

When you arrive at the Apple Store let one of the store employees know you are there for CocoaHeads and they will let you into the back where you can come up to the second floor briefing room space.

For folks who drive in and need parking one lot recommend by the store is from Patriot Parking on Chancellor Street.

Meeting Agenda

Group Business

  • Our first Suburb Edition of “Side Project Saturday” is Sat, Dec 13th at the Apple Store in King of Prussia.
  • Next Philly “Side Project Saturday” is Saturday, Dec 20th at IndyHall (Date changed due to holiday weekend.)
  • Workshop: Starting Swift is set for January 10th. Tickets are on sale.


We continue to welcome Twilio who is our current long term sponsor of Philly CocoaHeads. Their support helps us provide pizza and refreshments at our main meetings.

Twilio is a software and cloud-based communications platform that enables the rapid build and deploy of powerful, flexible business communications solutions.

For more info check out their website and if you have any question please contact Brent Schooley

Show and Tell

  • Curtis Herbert - GPS library
  • Kotaro Fujita - Character Rigging in Sprite Kit
  • Armen Papshev - To Keyword or Not To Keyword? (1)

(1) How to improve app downloads in less then two hours by doing keyword research for your app title and app keyword list in iTunes connect.


Mobile UX Design in 2015, Michael Raber

In this remix of his Philly BarCamp talk, Michael will introduce concepts we need to think as we design our apps and open up the discussion to the group.

Do we over rely on UICollectionView and UITableView?, Taun Chapman

UICollectionView and UITableView are massively optimized and factored libraries of classes for model list presentation. The talk will discuss good and bad uses for the views as well as alternatives which may be easier conceptually and in terms of implementation. Autolayout and IB_Designable makes alternatives surprisingly easy to implement. “Bad” uses would be uses where you can make the view work but there is an impedance mismatch and life is made more difficult than it needs to be.

About CocoaHeads

PhillyCocoa is the Philadelphia area Mac and iPhone programming group, a chapter of the worldwide CocoaHeads. All skill levels are welcome. The only requirement is an interest in Apple-related technologies and moderate tolerance for geeking out.

The main CocoaHeads presentation-style meeting is the second Thursday of every month. We also hold a Side Project Saturday event the last Saturday of the month. For more on our events see our Meetup page:

We are always looking for feedback and suggestions on what topics to discuss at our meetings. Please reach out if you have any comments.

Group website:

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How to Make a Hit App (Volume One)

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Philadelphia App Strategy Workshop: Monetization

Come out for a Gain and Engage Users Workshop the App Developers Alliance is hosting at the Science Center on Thursday, December 11th. Attendees will get to:

  • Gain key insights from industry leaders at AppLovin, Millennial Media, Smaato, OpenX, Mindgrub Technologies and more on how to leverage monetization strategies, boost engagement, and generate revenue from your apps.
  • Learn how to build apps with the user experience of your target audience in mind.
  • Grab a drink after the workshop with speakers and attendees (beer, wine, and appetizers served).

Register here with the code Cocoa to reserve your place for FREE! Space is limited, so be sure to sign up today!

Date: Thursday, December 11 from 3:00pm to 6:30pm

Location: Quorum at the University City Science Center | 3711 Market Street, Suite 800, Philadelphia, PA 19104

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Release Notes is hosting a new conference

Our good friend, Joe Cieplinski and his friend Charles Perry are starting a new conference. A little different from CocoaLove in its focus on building businesses.

October 21-23, 2015 | Indianapolis, IN

More info can be found here:

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Learning Swift: A Good Place to Start

As with all things Internet, there are a megaton of resources posted to learn Swift. In scanning to find some that are useful, I found that they all tend to have strengths and weaknesses. Add to that everyone’s own unique skill level and learning preferences and it becomes obvious that no one size fits all.

That said, a good list of resources to choose from seems a decent solution. Having reviewed a few, the best list I’ve come across so far is It includes the essential Apple resources (WWDC, Docs, Update Blogs, etc.), is divided into different skill levels, and has a sizable list of other resources that appear to be well curated.

Again, Enjoy, don’t forget to review previous posts on Swift, and look forward to future posts on Swift resources.

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WatchKit is Out

Time to roll, baby!


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PhillyCocoa Meeting Notes - November 2014

Meeting Kickoff and Updates

We all missed Mike Z. at this month’s meeting and hope he had an awesome time at the conference in Boston! We’re all looking forward to hearing some of the megaton of info he soaked up. :) That said, Curtis did a fantastic job in his absence and we, as always, got the benefit of great talks and surrounding discussion.

Here are some of the intro points of interest:
• The next Side Project Saturday has been moved to avoid conflicts with the holidays: (Nov 22 and Dec 13)
• CocoaLove was epic and now the videos are now being posted!
• The Kotaro-led Designing & Planning Your iOS App” Workshop was awesome…lots of “rubber meets the road” insight and guidance.
• Tom will be leading an Intro Swift Workshop soon which is bound to be equally succulent!

Anyway, be sure to hit the Meetup site ( to stay up on other awesome upcoming events.

Dennis, get on with it!

Ok…below is a quick recap of the talks and links to resources for more info. :)

Show and Tells

Jeff Kempista - iOS 8 Extensions

Jeff gave a raw cool talk on his experiences with iOS 8 Extensions. Thanks Jeff!

Here are some of the points from his talk and the discussion that came up around it:
• While extensions have to be bundled with an iOS app, they run completely separately and do not require even one launch of the app they are bundled with (called the containing app) to be presented/used by iOS.
• While they can’t pass messages to the containing app, they can share code and data with it as long as any code is bundled in a framework and any data is placed in a persistent store within the bundle (e.g. a SQL Lite DB file, Core Data persistent store, NSUserDefaults, plist, etc.). Keep in mind, though, not all APIs are available to extensions.
• If the extension crashes, iOS will just bypass displaying the corresponding view as an option within the context of the extension point (e.g. For Share extensions, that would be in the view that presents the iOS sharing options like FB and Twitter).
• Share extensions can even launch other apps!
• There is a checkbox (and associated Xcode warning) in one of the build settings pages that I couldn’t find even after adding a couple extensions to a test project. However know that if it’s not checked, Apple may reject your app containing the extensions. This stack overflow post was the only thing that sounded close ( but the checkbox wasn’t the one Jeff showed. Hit Jeff up for details or chime in if you have more info.
• For an example of Action extensions, the 1Password app ( contains at least one of them.
• Jeff also posted his slides at

Resources for more information:
• Apple Dev Page for App Extensions:

Kostas “Gus” Nasis - Rapid App Development Framework

While technical issues with posting content to the screens got in the way, Kostas and Sinae presented a way-cool content-rich app they developed for the ABRAAJ Group using lots of custom controls and web views (in a way that even Kotaro approves).

Kostas started to present their really cool idea of them developing a way to describe a UI using a JSON-format which describes all the attributes of the views. However, the talk was cut short so we’ll look forward to his presentation next month.

Kostas “Gus” Nasis - Pixate Demo

Here Kostas demoed Pixate—a very slick tool for mocking UI interactions and animations.

Here are some of the points from his talk and the discussion that came up around it:
• The drag-and-drop UI is similar to IB where you can drop what they call Layers (that represent views) onto the canvas and then associate different gestures with those layers.
• You can bind animations and other UI behaviors in response to user triggers of the corresponding Tap/Pinch/Pan/etc. gestures associated with the layer.
• You can group the layers in ways similar to creating a view hierarchy.
• There’s a simulator view that shows how the prototype would look on a device and the Pixate app allows you to do the same thing with an actual device just as Xcode does with real app code!
• While you can place other rectangles in the editing workspace to represent other scenes/screens, there’s only really one canvas so it was only designed to represent one screen per file similar to xibs.
• Also, they may be building a capability to generate code from the prototypes you build.
• Kostas also mentioned that the videos on the Pixate site are short and the ramp is quick.

Resources for more information:
• Main site:
• Good videos available at:

Hugh O’Neill - Kickstarter Feedback

Hugh let us in on his latest initiative associated with his Happ Puzzle App, called Happ Greeting!

Here are some of the points from his talk and the discussion that came up around it:
• Happ Puzzle allows someone to send scrambled photos to friends to be reassembled like a puzzle. • In Happ Greeting, Hugh has expanded this idea to allow the binding of a message to the photo being sent such that when you assemble the photo, the message proportionally gets descrambled…cool!
• Several people gave really great feedback and I wish I remembered so I could mention by name. You all know who you are…thanks for all the great input!
• Hugh also gave due kudos to Curtis who, at the design workshop, helped him refine his approach in associating the puzzle progress to the corresponding message assembly.
• Hugh wants to release to the App Store soon so we’ll keep everyone posted.

Curtis Herbert - GPS library

• Curtis graciously deferred his talk due to time constraints but we are absolutely holding him to next month’s meeting!


Andrew Theken- Confessions of a C# Fanboy: Using Xamarin to build your next iOS App.

Andrew, Andrew, Andrew. Thursday, we found out that, while remaining married to us, has been seeing another language…C#. While I’m not sure we’ll seek counseling, we still love him and will certainly continue to stay married. :)

Here are some of the points from his talk and the discussion that came up around it:
• Andrew loves…no…wait…he love, love, loves C#
• Xamarin actually compiles C# code into native iOS and Android binaries.
• Time’s Arrow (Andrew’s app) was developed in C# using Xamarin.
• He has reservations about the cross-platform capabilities with regard to writing one app that integrates with multiple different platform-specific SDKs…practically-speaking, you still have to code to each platform and thus should probably code separate apps for each.
• That said, if you love C#, you’d be able to use that as a single language across those platforms.
• Andrew’s Loves of Xamarin: It generates native code, interoperates with C and Obj-C, build system simpler than Xcode, great package manager, and great async support.
• Andrew’s Dislikes of Xamarin: Transliterating Obj-C examples, awkward integration with IB, “Vagarities” of object bridging, more difficult “meta-programming”, and some valid C# is unavailable for AoT.
• Andrew’s Loves of Xamarin: Not having to know Obj-C to use it, tools slower than Xcode, mapping the different meanings of the terms (e.g. Categories, Delegate, etc), the cross platform point above.
• Other cross-platform dev platforms: Unity, Mono (Xamarin’s open source project), .NET (yes, .NET —
• Cross-platform tools that facilitate building native apps where the UI is driven by HTML, CSS, and Javascript: Cordova, Titanium, and PhoneGap

Resources for more information:
• Developer resources site:
• Main site:
• Time’s Arrow (
• Unity (
• Mono (
• NET (yes, .NET —
• Cordova (
• Titanium (
• PhoneGap (

Note: This is only one humble man’s reflection of the talks. Please post any insights you extracted to the Meetup site!

Until next time, keep being tremendous!

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