Xcode 13 crash - UIFont.fontDescriptor.addingAttributes

Question

jig_r OP

Created Jun ’21

Replies 3

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Participants 4

Screenshot 2021-06-08 at 20.37.07.png

Hello,

I keep getting this error now using Xcode 13 as shown in the image.

This is new since Xcode 13. It doesn't seem to like "UIFontDescriptor.FeatureKey.featureIdentifier".

Anyone got any reasons for why this might be?

The code is:

let smallCapsDesc = finalFont.fontDescriptor.addingAttributes([

					UIFontDescriptor.AttributeName.featureSettings: [

						[

							UIFontDescriptor.FeatureKey.featureIdentifier: kLowerCaseType,

							UIFontDescriptor.FeatureKey.typeIdentifier: kLowerCaseSmallCapsSelector

						]

					]

				])
				finalFont = UIFont(descriptor: smallCapsDesc, size: accessibilityFontSize)

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Answer 1

jig_r OP

Jun ’21

I figured out what the issue might be: There was a bug where

'UIFontDescriptor.FeatureKey.type: kLowerCaseType'

did not work previously, but did work with

'UIFontDescriptor.FeatureKey.featureIdentifier: kLowerCaseType'

And so I've changed it to what its supposed to be.

0

Answer 2

Developer Tools Engineer OP

Apple

Jun ’21

Hi,

'featureIdentifier' was deprecated in iOS 15.0: renamed to 'type'

Are you able to try:

UIFontDescriptor.FeatureKey.type: kLowerCaseType,

0

Answer 3

Systems Engineer OP

Apple

Jun ’21

it is correct that you should be using UIFontDescriptor.FeatureKey.type and UIFontDescriptor.FeatureKey.selector respectively now with the latest SDK.

However, it should not crash with the deprecated names. Can you please file a feedback with a test project to reproduce the crash?

2