Hi, my name is Robert Böhnke but you can call me Robb. I'm a software developer in the Kernel team at Google. I live in Berlin.

If you would like to get in touch with me, send an e-mail to robb@robb.is. You can also check out my GitHub profile, if you'd like.

Here are some of the things I worked on or am working on now:

Frameworks

• UIKit
  The core user interface framework for iPhone, iPad, Apple Watch, and Apple TV. As part of iOS 11, I worked on implementing Drag and Drop support for iPhone and iPad.

• Xamarin Insights
  A native implementation of the Xamarin Insights Framework for iOS (discontinued).

Open Source

• NES.swift
  An emulator for the Nintendo Entertainment System, written in pure Swift

• Cartography (blog post)
  Declarative Auto Layout in Swift

• Carthage
  A simple, decentralized dependency manager for Cocoa

• Mantle (blog post)
  A Model framework for Cocoa and Cocoa Touch

• RBBAnimation (blog post)
  Block-based animations made easy.

• Asterism (blog post)
  An Objective-C library for manipulating data structures.

• Underscore.m (blog post)
  Another Objective-C library for manipulating data structures.

• … and more.

Writing

• Implementing a Peel-Off Animation
  How to recreate Messages.app's sticker peel off animation

• Animations Explained
  My article on CoreAnimation for objc.io #12.

• How to build a nice Hamburger Button transition in Swift
  A small tutorial how to build a slick transitions for a Hamburger Button

• How to build awesome CSS envelopes
  A tutorial how to build nice-looking envelopes with HTML & CSS

Patents

• Drag and Drop for Touchscreen Devices
  US Patent 10444976B2 · Granted 2019-10-15 · Apple Inc. · Bruce D. Nilo et. al.

Apps

• SoundCloud for iOS
  The official SoundCloud app for iPhone and iPad.

• SoundCloud for Android
  The official SoundCloud Android app.

• Automatic
  The official Automatic iPhone app.

• The Artsy iPhone app
  The official Artsy iPhone app.

• SoundCloud Desktop
  The official SoundCloud app for OS X (discontinued).

Talks

• Mastering Drag and Drop (blog post)
  My talk at WWDC 2017 on the lower level Drag and Drop APIs introduced in iOS 11.

• Let's Talk about ReactiveCocoa! - HD™ ✨
  A 1080p version of my ReactiveCocoa talk I gave at the Brooklyn iOS Developer Meetup.

• My talk at Cocoa Kucha Berlin 2014
  A brief talk about Mantle for the Cocoa Kucha Berlin.

• Let's Talk about ReactiveCocoa!
  My talk for NSSpain 2013.

• My talk at CocoaHeads Berlin, August 2013
  It's about Underscore.m and Asterism.

• My talk for UIKonf 2013
  It's about ReactiveCocoa.