History of Cocoaheads Aachen Events
(find the current events and information on our main page)
2023
- March 2, 2023: Felix Wehnert: "An introduction to swift-syntax” (live demo, no recording)
- January 26, 2023: Christian Menschel: "Digital Service und Digital Market Act und die Konsequenzen für Apple" (Slides [PDF, 11 MB], Video [1:06 h])
2022
- November 24, 2022: Christian Tietze: "Make your app extensible with JavaScriptCore" (Slides [PDF, 7.8 MB], Sample Code [ZIP, 18.4 MB], Video [YouTube, 0:48 h])
- November 3, 2022: "DrawMotions" Coding Dojo (Base repo by Christian Menschel, Forks here)
- September 29, 2022: Torsten Kammer: "3D Graphics with Metal"
- August 25, 2022: Felix Wehnert: "Swift Async Await" (Video [MP4, 1:18 h])
- July 28, 2022: Jonas Schlabertz: "Building Modern CollectionViews with CompositionalLayout"
- June 30, 2022: WWDC Wrap-up open-air
- April 28, 2022: Christian Menschel: "Flexibility through Swift Packages!" (live demo)
- March 31, 2022: No talk, just smalltalk
- March 3, 2022: Manuel "StuFF mc" Carrasco Molina: "Creating apps without a Mac (by using Swift Playgrounds 4 on an iPad)" (live demo)
- January 27, 2022: Chris Gretzki: SwiftAlyzer - Architektur-Review wie mit Google Maps (Slides [PDF, 4.3 MB])
2021
- December 16, 2021: Wine Punch
- November 25, 2021: Matthias Weber: ARKit - Neuerungen von Motion Capture bis zum „Raumscanner" (Slides [PDF, 6.7 MB])
- October 28, 2021: "face 2 face" get-together
- September 30, 2021: Let's get interactive on a Codeflight... (Coding Dojo)
- August 26, 2021: Christian Menschel: "Core Bluetooth in Practice" (Slides [PDF, 1.4 MB])
- July 29, 2021: A rare get-togehter in real life!
- June 24, 2021: WWDC Wrap-up
- May 27, 2021: Lukas Woyke: "Multipeer Connectivity Framework und Präsentation der 'Better Together'-App" (Slides [PDF, 5.5 MB], Project Site & Repo)
- April 29, 2021: Christian Menschel: "App Extensions Coding-Session"
- March 25, 2021: Stephan Partzsch: "Clean Code und die Praxis" (Slides [PDF, 1.3 MB])
- February 25, 2021: Vidu Glöck: "Composable Architecture" (Live Coding Session)
- January 28, 2021: Jonas Vogel: "App Privacy Details" (Slides [PDF, 1 MB], Video [0:26 h])
2020
- December 17, 2020:
- Christian Menschel: "WidgetKit" (Live Coding)
- Felix Wehnert: "CreateML: Behind the scenes" (Slides, [PDF, 11.7 MB])
- November 26, 2020: "Apple Silicon / M1: The Machine we now can talk about?"
- October 26, 2020:
- Roland Schmitz: "Combine Operators" (Slides & Playground, Video [1:29 h])
- Angelo Cammalleri: "Reverse Engineering für iOS-Entwickler" (Slides [PDF, 1.9 MB], Video [0:12 h])
- September 24, 2020: Let's talk about your best SwiftUI tips & tricks!
- Repositories of our code examples:
- Roland Schmitz: Spiral Field - WWDC20 Swift Student Challenge Award Winner
- Christian Menschel: SwiftUI Tips&Tricks
- Selected Sources for learning SwiftUI:
- [Hacking with Swift] 100 Days of SwiftUI
- [Kavsoft] Easier Way To Learn SwiftUI
- [Big Mountain Studio] SwiftUI Views Mastery Bundle
- [Let's Code – Der Entwickler-Blog von Thomas Sillmann] Das SwiftUI-Buch
- [Stanford University @ YouTube] Paul Hegarty: Lecture 1: Course Logistics and Introduction to SwiftUI
- [raywenderlich.com] Programming Tutorials
- [RWTH Aachen | Media Computing Group] iOS Application Development
- [Standford University] CS193p - Developing Apps for iOS
- [WWDC 2020] SwiftUI Videos
- [objc.io] Thinking in SwiftUI
- [Design+Code] Build an app with SwiftUI
- [GitHub] R.swift: Strong typed, autocompleted resources like images, fonts and segues in Swift projects
- [macOS & iOS Entwicklerforum] (german) https://osxentwicklerforum.de
- [Swift by Sundell] Weekly Swift articles, podcasts and tips by John Sundell
- [Swift by Sundell] 76: “A huge year for SwiftUI”, a WWDC20 special with Josh Shaffer and Eliza Block
- [Swift by Sundell] 59: “A major step forward”, a SwiftUI special with Josh Shaffer (Podcast)
- [Hacking with Swift] Enabling high-performance Metal rendering with drawingGroup()
- Repositories of our code examples:
- August 27, 2020:
- CocoaHeads SmallTalk
- July 30, 2020:
- Alex Hoppen: "Swift Memory Performance" (Slides [PDF], Demo Code [ZIP])
- July 2, 2020:
- WWDC Wrap-up
- May 28, 2020:
- Manuel "StuFF mc" Carrasco Molina: "Developer's Digest: MacCatalyst & UIViewRepresentable"
- April 30, 2020:
- Christian Menschel: "Presenting Apple's and Google's Bluetooth Contact Tracing Framework" (Slides [PDF, 3 MB], Video @ Vimeo)
- Feburary 27, 2020:
- Christian Menschel:
- "Integration and UI testing with my local swift web server" (Slides [PDF, 1.7 MB])
- "Architecture details of our iOS app SolarDashboard" (Slides [PDF, 137 KB])
- Manuel "StuFF mc" Carrasco Molina: "Best practises for SwiftUI" (Slides [PDF, 3.1 MB])
- Christian Menschel:
- January 30, 2020:
- Jonas Schlabert: "Server-side Swift" (Slides [PDF, 110 KB], Demo Code [ZIP, 30 KB])
2019
- December 19, 2019:
- Johannes Raufeisen: "Language Parsing in Action" (Slides [PDF, 500 KB])
- Felix Wehnert: "Time Series Databases" (Slides [PDF, 1.8 MB])
- November 28, 2019:
- Alexander von Below: "Cross Platform-Entwicklung mit Kotlin"
- October 24, 2019:
- Lukas Woyke: "iPad app for Mac" (Slides [PDF, 600 KB])
- Christian Hell: "Monitoring and remote logging with ELK (Elastic Search, Logstash, Kibana)" (
Slides [PDF, 2.7 MB])
- September 26, 2019:
- Werner Lonsing: "A Multivariant Design Tool based on ARKit" (Slides [PDF, 11 MB])
- Christian Menschel: "Let's build some UIKit or AppKit" (Repo @ GitHub)
- August 29, 2019:
- Jonas Schlabertz: "Sign in with Apple" (Slides & Sample Project [ZIP, 300 KB])
- Angelo Cammalleri: "Transformable Type in CoreData" (Slides [PDF, 2 MB])
- August 1, 2019:
- Alex Hoppen: "Metal for Beginners" (Slides [PDF, 10 MB], Sample 1, Sample 2)
- June 27, 2019:
- WWDC Wrap-up
- Felix Wehnert: "SwiftUI" (Slides [PDF, 0.8 MB] / Sample Code / Collection of SwiftUI resources)
- June 3, 2019:
- April 25, 2019:
- Christian Menschel: "UI Snapshot Testing" (Slides [PDF, 1 MB])
- March 28, 2019:
- Moritz Messerschmidt: "Short Introduction into CoreML / CreateML" (Slides [PDF, 7.4 MB])
- February 27, 2019:
- Manuel "StuFF mc" Carrasco Molina: "Save the world with Xcode: Energy consumption and optimization" (Slides @ SpeakerDeck)
- January 31, 2019:
- Felix Wehnert: "CarPlay" (Slides [PDF, 5.8 MB])
2018
- December 20, 2018:
- Sebastian Meßingfeld: "Voice-controlled iOS apps" (Slides @ SpeakerDeck)
- November 29, 2018:
- Sebastian Hagedorn: "Taming SwiftLint in CI" (Slides PDF, 758 KB)
- Tool Talk
- October 25, 2018:
- Christian Menschel: "[weak self] handling in closures: Done right" (Slides PDF, 88 KB)
- Sven Titgemeyer: Code Golf (Repo)
- September 27, 2018: Sven Titgemeyer: "Error Handling with iOS" -- How to utilise Responder Chain for centralised error handling (Slides @ SpeakerDeck)
- August 30, 2018: Mathis Müller: "Siri Shortcuts" (Slides @ SpeakerDeck, Sample Code @ GitHub: Siri-Shortcuts-Example, PizzaBaker)
- July 26, 2018: Manuel "StuFF mc" Carrasco Molina: "Building Privacy into iOS Apps" A look at the Karma-based APIs (Slides @ SpeakerDeck)
- June 28, 2018:
- WWDC 2018 Wrap-up
- Felix Wehnert: "MusicKit JS" (Slides PDF, 150 KB)
- May 24, 2018 (CocoaHeads Aachen turns X)
- Angelo Cammalleri & Felix Wehnert: "Unboxing Mapbox" (Slides PDF, 3.6 MB)
- Werner Lonsing: "Swift for Haters" (Slides PDF, 2.3 MB)
- Sven Titgemeyer: Code Golf (Repo & participants' pull requests)
- April 26, 2018:
- Frank Lauter: "macOS / iOS-Entwicklung in Delphi/C++ mit Embarcadero RAD-Studio"
- Tobias Arends: "Low Effort JSON Handling in Swift 4"
- March 29, 2018: Torsten Kammer: "Game Controller and HID on Mac and iOS" (Slides PDF, 1.4 MB, demo code @ GitHub)
- February 22, 2018: Felix Wehnert: "Pen based drawing with ARKit: ARPen" (Slides PDF, 1.2 MB, demo code @ GitHub)
- January 25, 2018: Alexander von Below: "Apple and the Human Interface"
2017
- December 21, 2017: We watched "App: The Human Story" (70 min)
- November 30, 2017:
- Sven Titgemeyer: "On-Demand Resources" (Slides PDF, 936 KB)
- Alex Hoppen: "Building your own Swift Refactoring Action" (Slides PDF, 78 KB)
- October 26, 2017:
- Roland Schmitz: "MapKit 2017: Nice Try!" (Slides, PDF, 3.4 MB)
- "Tool Talk" (Update 1: Mind Map PDF, 450 KB, Mind Map FreeMind data format, 57 KB)
- September 28, 2017:
- Alex Hoppen: "When the last byte is taken – What can go wrong when you're running out of disk space" (Slides PDF, 61 KB)
- Angelo Cammalleri: "Developing an ARKit App" (Slides PDF, 11 MB)
- August 31, 2017: Michael Ochs: "About touches, gestures and spaceflight" (Slides PDF, 350 KB)
- July 27, 2017:
- June 29, 2017:
- Felix Wehnert: "Cracking my macOS App" (live demo, so no slides or sample code...)
- May 24, 2017: CocoaHeads Aachen turned 00001001... (hosted by Interactive Pioneers @ Drehturm Aachen)
- Angelo Cammalleri: "Notification Service Extensions" (Slides PDF, 3 MB)
- April 27, 2017: Michael Ochs: "Layout Guides"
- March 30, 2017: Christian Hell: "TeamBoard - An approach for Jira on tvOS" (Slides PDF, 7 MB)
- February 16, 2017: "Let's talk about (your) code"
- January 26, 2017: Michael Ochs: "The unofficial guide to building Action Extensions" (Slides: PDF, 500 KB / Speaker Deck, Sample Code)
2016
- December 22, 2016: Wine Punch
- November 24, 2016: Tobias Arends: "Improving The Development Process Using fastlane.tools" (Slides PDF, 4 MB)
- October 27, 2016: Armin Mokhtarian: "Tangibles on Capacitive Touchscreens" (Slides PDF, 1.3 MB)
- September 29, 2016:
- Felix Wehnert: "MultipeerConnectivity and a little bit of beacons" (Slides PDF, 180 KB, Demo Code ZIP, 200 KB)
- Michael Plagge: "Talking to SiriKit" (Slides PDF, 2.4 MB)
- August 25, 2016: Ullrich Platt & Michael Plagge: "Server-side Swift" (Slides PDF, 2.6 MB)
- July 28, 2016:
- Dominik Hauser: "Test-Driven iOS Development with Swift"
- Michael Ochs: "CollectionViews in iOS 10"
- June 30, 2016: WWDC Wrap-up
- May 19, 2016: Celebrating 8 years of CocoaHeads Aachen!
- Alex Hoppen: "One less thing – what to expect of Swift 3 so you’re not surprised at WWDC" (Slides PDF, 170 KB)
- Michael Ochs: "Swift vs. Objective C(++)" (Slides PDF, 60 KB)
- Konrad Neuwirth: "System-theoretical approach to software development"
- April 28, 2016: Alex Hoppen: "Taking a look inside Swift" (Slides PDF, 900 KB)
- March 31, 2016:
- Werner Lonsing: "Presentations of some Practical Image Processing"
- Dömötör Gulyás: "Roboting with iOS, OpenCV, BLE, and Lego" (Slides PDF, 7.7 MB)
- February 25, 2016: "Tool Talk" (Mind Map PDF, 310 KB, Mind Map Freemind data format)
- January 28, 2016: StuFF mc: "CloudKit, Firebase & company" (live-demo only)
2015
- December 17, 2015: Wine Punch
- November 26, 2015:
- Michael Ochs: "Taming the Apple TV: First Steps on a new Platform" (Slides PDF, 27 KB)
- Alex Hoppen: "Parsing JSON into native Swift-Structs" (Slides PDF, 190 KB)
- October 29, 2015: Sven Titgemeyer: "Gaming on Apple Watch" (Slides PDF, 1.1 MB)
- September 24, 2015: Let's talk All New Things Apple: tvOS, watchOS 2, iOS 9...
- August 27, 2015: Michael Ochs: "Multithreading on iOS" (Slides PDF, 100 KB, also available at Speaker Deck)
- July 30, 2015:
- June 25, 2015: Phillip Kessels: "|> Elixir.learn: A functional Programming Language"
- May 28, 2015: Celebrating seven years of CocoaHeads Aachen!
- Sven Titgemeyer: "Accessibility" (Slides PDF, 400 KB)
- April 30, 2015:
- Michael Bischof: "WatchKit Intro by Example" (Slides PDF, 2.2 MB)
- StuFF mc: "(Core) Bluetooth" (Slides, PDF, 1.6 MB)
- March 26, 2015: Thomas Westfeld: "Universal Two-Factor Authentication for the Web And The Mac" (Slides PDF, 3 MB)
- February 26, 2015: Alex Hoppen: "Test-driven development – Why and how to do it in Swift" (Slides PDF, 400 KB, find the demo code at GitHub)
- January 29, 2015:
- Felix Wehnert, Sven Titgemeyer: Parse — "The complete mobile app platform" (Slides PDF, 1.3 MB, Sample Code (Swift), Sample Code (Objective C))
- Werner Lonsing: Spark core(s) and Cocoa
2014
- December 17, 2014: Wine Punch
- November 27, 2014: Jacek Wisniowski: "GNUstep" (Slides PDF, 2.6 MB, find the demo code at GitHub)
- October 23, 2014: Thorsten Karrer, Moritz Wittenhagen: "The dark side of LLDB: Reverse engineering of functionality in other apps" (Slides PDF, 3.5 MB, Handout Material ZIP, 500 KB)
- September 25, 2014:
- Let's talk about iOS 8 and new hardware
- StuFF mc: Cloud Kit (A short talk held at #NSSpain, Slides available at Speaker Deck)
- August 28, 2014: Max Christ: "Bare Metal ...without OpenGL prerequisites" (Slides PDF, 6 MB, Demo Code ZIP, 35 KB)
- July 31, 2014:
- "Tool Talk" (Mind Map PDF, 350 KB, Mind Map Freemind data format)
- June 25, 2014:
- May 28, 2014:
- Phillip Kessels: "Sprite Kit" (Slides PDF, 420 KB, find the demo code at GitHub)
- Leonhard Lichtschlag: "CGPathRef and friends" (Slides PDF, 380 KB), find the demo code at GitHub)
- April 24, 2014:
- Christoph Jerolimov: "CocoaPods Introduction" (Slides PDF, 70 KB)
- Tim Becker & Matthias Krauß: "iBeacon and API access" (Slides PDF, 2 MB)
- March 27, 2014: Manuel Carrasco Molina: "Cross Technologies — iOS & OS X Together again" (Slides PDF, 30 MB, also see the Video at CocoaHeads TV)
- February 20, 2014: Amin Negm-Awad: "Clang Tooling"
- January 30, 2014: David Linsin: "iOS Continuous Delivery / Integration" (Slides PDF, 0.6 MB)
2013
- December 19, 2013: Wine Punch
- November 28, 2013: Jochen Karl: "iBeacons"
- Notice: Due to Apple Inc. Developer Programme NDA I cannot publish any code here, please see WWDC 2013 video 307 “What’s New in Core Location” timestamp 36:30 till the end and video 310 “Harnessing iOS to Create Magic in Your Apps” timestamp 27:40 - 48:50 for more information
- October 31, 2013:
- Dennis Lewandowski: "Unit Testing" (Slides PDF, 500 KB, Demo project ZIP, 1 MB, User Stories)
- Werner Lonsing: "Empathic Light" (Overview PDF, 3 MB)
- September 29, 2013: Welcoming and discussing iOS 7...
- August 29, 2013: "Hardware Playground"
- Touch and see the freshly arrived Oculus Rift Development Kit in action while Simon Grätzer showcases Tube Racer!
- Get your hands on (or off of) a Leap Motion device brought by Jochen Karl
- July 25, 2013: "Bring your Code"
- June 27, 2013:
- Phillip Kessels: "The lesser known Apple Frameworks: PubSub" (Slides PDF, 200 KB)
- WWDC Wrap-up
- May 23, 2013: 5 years CocoaHeads Aachen!
- Pictures of the event (Photobook PDF, 17 MB)
- Blowing the birthday candles (Michael & Jan): Video MOV, 58 MB
- April 25, 2013: Thorsten Karrer: "Mac App Store receipt checking"
- March 28, 2013: "Pitch your App"
- February 28, 2013: Amin Negm-Awad: Preview of Objective-Cloud
- January 31, 2013: Max Stottrop: "Searching for Delight" (User Experience, Slides Keynote, including Videos, 26 MB, Slides PDF, 5 MB)
2012
- December 20, 2012: Manuel Carrasco Molina: "CouchDB for Cocoa Folks"
- November 29, 2012:
- Joachim Kurz: "Bindings, KVC & KVO" (Slides)
- Tool Talk: Development Tools (Mindmap)
- October 25, 2012: Torsten Kammer: "SceneKit" (Slides, Sample Code)
- September 27, 2012:
- Jonathan Diehl: "AsyncNetwork: Cocoa and iOS Networking Evolved" (Slides)
- StuFF mc: "Roundup of the first Objective-Cologne conference"
- August 30, 2012:
- Werner Lonsing: "Connecting iOS devices to RS-232 serial devices" (Slides)
- Jochen Wolters: "What (Gestalt-)Psychology Has To Do With Software Development" (Slides)
- July 26, 2012: Torsten Kammer: "OpenAL (3D Audio, especially for games)" (Slides)
- June 28, 2012: dorkbot Introduction & WWDC Roundup
- May 22, 2012: Martin Winter: "Introduction to Core Text programming" (Sample Code on GitHub)
- April 26, 2012: Alexander Reichstadt: "Native Database Applications on OS X"
- March 29, 2012: Martin Winter: "A Case Study in Storyboards" (Slides, Slides-Video \, Slides-Video \)
- February 23, 2012: Kai Brüning: "From Garbage Collection to ARC - a field report" (Slides)
- January 26, 2012: Max Stottrop: "In-App-Purchase" (Slides)
2011
- December 14, 2011: Werner Lonsing: "Augmented Reality" (Slides)
- November 24, 2011:
- Joachim Kurz: "Debugging Hands-on"
- Corinna Baldauf: "Agile Software Development: Scrum, Kanban and Software Craftmanship" (Slides)
- October 25, 2011:
- David Linsin: "AppCode" (Demo)
- September 29, 2011: Stefan Hafeneger: "AV Foundation"
- August 25, 2011: Thorsten Karrer, Moritz Wittenhagen: "OpenGL Core Profile" (Slides, Code)
- July 28, 2011: OS X Lion -- FAQ session
- June 22, 2011: "Bring your Code" & WWDC Roundup
- May 26, 2011:
- Joachim Kurz: "Building a Location Viewer to view consolidated.db on the iPad" (Slides)
- April 28, 2011: Torsten Kammer: "OpenGL on Mac OS X and iOS" (Slides, Code)
- March 31, 2011:
- David Detry: "Creating a Reminder App using Local Notifications" (Slides)
- February 24, 2011: Manuel Carrasco Molina: Address Book APIs for iOS & Mac OS X (Slides)
- January 27, 2011: Stefan Hafeneger: Mac App Store
2010
- August 26, 2010: Manuel Carrasco Molina: XMPP/Jabber and ObjectiveC XMPP Slides
- July 29, 2010: Newest developments and gadgets for iPads
- July 1, 2010: Werner Lonsing: Layers and Animation (Slides, Code only by request)
- May 27, 2010: Stefan Hafeneger
- April 29, 2010: Dömötör Gulyás: Bonjour/Zeroconf; Trying out the iPad
- March 25, 2010: David Detry: Optimizing application startup time with Instruments.
- February 25, 2010: Werner Lonsing: "MapKit" (Slides)
- January 27, 2010: Apple Keynote about the new iPad
2009
- December 17, 2009: Stefan Hafeneger: "Aperture TiltShift PlugIn" (no slides and code this time)
- November 26, 2009: Udo Borkowski: "Ruby & Cocoa" (Slides and Ruby Sample Code)
- October 29, 2009: Jan Peter Krämer: "Cocoa Reverse Engineering and Mail Plugin Development" (Slides and Code)
- September 24, 2009: Stefan Hafeneger: "My Summer at Apple"; Kai Brüning: New Snow Leopard Technologies: Blocks, Grand Central Dispatch (GCD) (sorry, no slides this time)
- August 27, 2009: Thomas Voßen, "CUDA on Mac OS X" (Slides and Sample Code); StuFF mc, "iPhone projects"
- July 30, 2009: Udo Borkowski, "Spotlight Programming" (Sildes, Resources (22MB))
- June 18, 2009: Werner Lonsing, "QTKit" (Slides, Sample Code)
- May 28, 2009: Torsten Kammer, "Cocoa Higher Order Messaging" (Slides and Sample Code)
- April 29, 2009: Stefan Hafeneger, "Scripting Bridge" (Keynote Slides, Sample Code)
- March 26, 2009: Amin Negm-Awad, "Aspect-Oriented Programming"; Stefan Hafeneger, "Bonjour Demystified" (Slides)
- February 26, 2009: Kai Brüning, "Unit Tests - Aufzucht und Pflege" (Slides and Sample Code); Stefan Hafeneger, "Cocoa PlugIns" (Slides)
- January 29, 2009: Udo Borkowski, "Porting a Windows MFC Application to Cocoa" (PDF of Keynote Slides)
2008
- November 27, 2008: Amin Negm-Awad, "Dispatching in Objective-C" (Keynote Slides); Stefan Hafeneger, "Distributed Objects" (Keynote Slides, Sample Code)
- October 30, 2008: Werner Lonsing, "GPS: More than WhereAmI" (Keynote Slides)
- September 25, 2008: Kai Brüning, "Plug-ins for Interface Builder 3" (video to be done, Sample Code)
- August 28, 2008: Stefan Hafeneger, "Developing multi-touch Applications for Mac OS X" (video to be done)
- July 31, 2008: Amin Negm-Awad, "Advanced Cocoa Bindings" (video to be done, Sample Code)
- June 26, 2008: Werner Lonsing, "CoreImage: Digital Arts for Cocoa Developers"; Jonathan Diehl: "iPhone and SQLite" (CoreImage Resources, iPhone SQLite sample code)
- May 29, 2008: Stefan Hafeneger, "iPhone DataMatrix Reader: from Zero to Hero". (barcode reader Source Code, The People)
- April 24, 2008
- ... (meetings started earlier in 2008)
