Latest Updates

Creating Lists with Collection View

Is this the beginning of the end for UITableView? Here’s my guide to building table-view like lists using collection views with iOS 14. Along the way we’ll also look at the new way to manage cell configurations and make use of a diffable data source.

WWDC 2020 Viewing Guide

Here’s my viewing guide for the sessions I found most interesting this year.

Self-sizing Popovers

How do you control the size of a popover? What if you want the popover to size itself to fit the content?

Swift Filtering With Predicates

You can do a lot with strings using the Swift standard library but sometimes you need to fall back on NSPredicate. In this post I build a filter for a collection of Swift value types using a configurable predicate.

Flipping and Localizing Image Assets

When you support Right-to-Left (RTL) language directions you may find you need to flip or mirror image assets. Asset catalogs have supported directional image assets since Xcode 8 and iOS 10. Unfortunately it doesn’t always seem to work as expected.

Starting with Xcode 11 you can localize images in the asset catalog but that shouldn’t be necessary if you only want to mirror an image. Here’s what works for me.