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Questions tagged [uti]

A 'Uniform Type Identifier' (UTI) is a string value used to identify abstract and specific types of item. It uses a reverse-DNS syntax, and is used extensively by Apple for determining types of data files. UTIs exist in an inheritance-based structure, allowing data types to be organised hierarchically. Apple maintains a list of public UTIs, and allows the creation of private, or 'third-party' UTIs.

A 'Uniform Type Identifier' (UTI) is a string value used to identify abstract and specific types of item. It uses a reverse-DNS syntax, and is used extensively by Apple for determining types of data files.

UTIs exist in an inheritance-based structure, allowing data types to be organised hierarchically, and referenced as a more abstract type (e.g. public.image) or more specifically (e.g. public.jpeg).

Apple maintains a list of public UTIs, and allows the creation of private, or 'third-party' UTIs.

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CIFilterGenerator filename extension

Is there an expected UTI or filename extension for generated Core Image filters exported using CIFilterGenerator's writeToURL:atomically: method?
Peter Hosey
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Issue on attaching csv & pdf file- Objective c

I'm working with PDF generation,it generated the PDF, viewed using QLPreviewController, all worked fine except mail forwarding, I have two attachments of type .pdf and .csv. I have the following issues while emailing. sometimes no attachments while…
Mumthezir VP
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On IOS, can you make QLPreviewController treat certain files as text?

I am using QLPreviewController to display files, many of which are actually plaintext, but QLPreviewController doesn't seem to know that. (Files with the .m extension are unable to be displayed, for example.) Is there a way to tell…
zekel
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how to open an apple unsupported file in our ipad app

i need to open an Apple unsupported file in my ipad app using "Open In" feature. The file extension in ".lasso" . I said that file is unsupported by Apple, because i cant find it description in Apple System-Declared Uniform Type Identifiers. I was…
R. Dewi
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How can I upgrade the deprecated UTTypeCopyPreferredTagWithClass method to something iOS 16 compatible?

I'm trying to convert this deprecated bit of code into its iOS 16 compatible form: extension URL { public static func pathExtensionForUTI(_ uti: String) -> String? { return UTTypeCopyPreferredTagWithClass(uti as CFString,…
swiftdrift
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UIDocumentBrowserViewController and suported file types

I am working on an app which handles only jpeg files, with UIDocumentBrowserViewController as root VC. I have set things up to be able to successfully open those files, but files of other types are still shown (dimmed out) in the browser. Is there…
Torrontés
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How can I use UTIs to get a list of video files in a directory that are playable by AVPlayer?

I've been trying to find out how to use UTIs (Unified Type Identifier) on macOS in swift, but have not been able to find anything. Does anyone know how I could use UTIs to get a list of video files in a directory that are playable by AVPlayer?
Melodius
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