Robb Böhnke

Our custom material and bar implementation also enabled us to offer a tab bar that is fully customizable by the user.

Built with Josh and Gavin.

We've updated Linear with an all-new design that looks great on iOS 26 and runs on iOS 18 without compromise. Leveraging SwiftUI shaders, we built a custom material true to Linear's understated design aesthetic.

Built with Josh and Gavin.

Discover how to create stunning visual effects in SwiftUI. Learn to build unique scroll effects, rich color treatments, and custom transitions. We'll also explore advanced graphic effects using Metal shaders and custom text rendering.

I was honored to give this talk with Philip.

I contributed to the Explode text effect in Messages on iOS 18.

With Pow, you can add a variety of SwiftUI transitions to your iOS or macOS app, from over the top ones like .anvil to more the more subtle .pop.

As an engineer on the mobile team, I look after the Linear App for iPhone.

YCombinator Batch S21

In Kernel, Google' product incubation space within the Google Research organization, my work focused on fast-paced iteration on highly polished prototypes.

In the Health team at Apple, I developed a scalable unidirectional data flow architecture to drive our Apple-internal application.

In the UIKit team, I helped ship Drag and Drop on iPad for iOS 11 and prototyped upcoming APIs.

Clients include Artsy, Automatic & Xamarin.

links.robb.is

A tumblelog where post links I come across.

SwiftUI Snippets

My Patreon features regular posts on animation techniques in SwiftUI. Previous posts include how to build a Mitosis effect, implement custom, shader-based ShapeStyles, or write a Curtain Effect.

My thanks to everyone who's subscribed, it really means a lot to me.

OpenStories by dddddddddzzzz

A syndication format for distributing stories to friends and families – built on top of JSON Feed.

A project with Mu-An.

OpenHeart by dddddddddzzzz

The Open Heart protocol lets an anonymous user send an emoji reaction to a URL – enabling JavaScript-free Like Buttons.

RBBJSON

RBBJSON enables flexible JSON traversal at runtime and JSONPath-like querying for rapid prototyping in Swift.

NES.swift

An NES emulator written in Swift.

A technique for resolving SwiftUI Text dynamically to respond to user preferences.

We rebuilt the Linear mobile app, taking Liquid Glass as inspiration while refining it further to suit the way our users work.

Matching SwiftUI’s view APIs in their ergonomics is hard to get right. In this post we’ll learn how to write view APIs that feel truly native to the platform.

Rich and expressive typography is a cornerstone of Apple's UI design yet with the current version of SwiftUI, some of the most powerful APIs are hidden from us. Let's see what it would take to get them back.

Our job at Moving Parts is to make your app the best it can be. Beyond being highly usable and accessible, this also means good looking.

Animations are a great way to tell the story of your application, and by understanding the basic principles behind animation, designing them will be a lot easier.

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