---
title: Day 49
author: Daniel Devesa Derksen-Staats
date: 2022-07-06 09:37
tags: accessibilityTraits, iOS
categories: ["Accessibility"]
series: ["365 Days iOS Accessibility"]
image: /Images/365DaysIOSAccessibility/image157.jpg
---

In Objective-C accessibility traits are a bitmask. Some devs find tricky to work with them using bitwise operations. In Swift they conform to the OptionSet protocol that conforms to SetAlgebra. That means you can simply insert/remove traits.

![Code shows how with Objective-C you need to use bitwise operations to operate with accessibility traits. Bitwise AND (|) for adding traits and bitwise NOT (& ~) to remove them. Accessibility trait none is useful to remove all traits. In Swift, the traits conform to the OptionSet protocol that conforms to SetAlgebra, so you can do things like: insert, remove, formUnion, intersection, isSubset, etc.](/Images/365DaysIOSAccessibility/image157.jpg)