How to get Image Name used in an UIImage?

Question

I am using an UIImage, in which I have an Image, and I want to know the name of image.

Answer: UIImageView - How to get the file name of the image assigned? http://stackoverflow.com/a/16885708/2316831?stw=2 — Hasan Sawaed, Jun 02 '13 at 18:11

score 9 · Accepted Answer · answered Apr 23 '12 at 11:09

9

That functionality is not built-in to UIImage because images are not always loaded from files. However, you could create a custom UIImageView subclass to fit your needs.

answered Apr 23 '12 at 11:09

Evan Mulawski

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@JayD: Not directly from an instance of `UIImage`. – Evan Mulawski May 29 '13 at 22:48
Wrong, @junaidsidhu has nailed it corretly – user464230 Apr 05 '22 at 16:18

score 5 · Answer 2 · answered Apr 23 '12 at 11:10

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It is not possible. UIImage instance contains the actual image data without any reference to the filename.

answered Apr 23 '12 at 11:10

Krishnabhadra

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score 1 · Answer 3 · answered Apr 23 '12 at 11:09

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Images do not necessarily come from files or other named sources, so not all images even have a name. When you create an image from a file, you could store the name in a separate NSString*, and then refer to that stored name when necessary.

answered Apr 23 '12 at 11:09

Sergey Kalinichenko

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score 1 · Answer 4 · answered May 29 '13 at 22:38

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this code will help you out

    NSString *imgName = [self.imgView1st image].accessibilityIdentifier;

    NSLog(@"%@",imgName);

    [self.imgView2nd setImage:[UIImage imageNamed:imgName]];

answered May 29 '13 at 22:38

junaidsidhu

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this doesn't work because you have to set the accesibiliyIdentifier when assining image – Silviu St Jun 10 '14 at 14:23
This is definitely the right answer! People should upvote it. When loading images via local bundle, using XCAssets, the runtime itself will automatically assign the `accessibilityIdentifier` to be the same as the asset name. When loading images dynamically or creating it dynamically, of course there is no built-in solution – user464230 Apr 05 '22 at 16:15

Anton Plebanovich · Answer 5 · 2020-06-25T06:27:00.847

On later iOS versions it's possible to extract image name from the description. Aware, for the debug use only!

extension UIImage {

    /// Extracts image name from a description.
    /// * Example description: `<UIImage:0x60000278ce10 named(main: ic_timeline_milestone_bluedot) {16, 16}>`
    /// * Example name: `ic_timeline_milestone_bluedot`
    /// - warning: For the debug use only.
    var name: String? {
        let description = self.description
        guard let regexp = try? NSRegularExpression(pattern: "\\(main: (.*)\\)", options: []) else { return nil }
        guard let match = regexp.matches(in: description, options: [], range: description.fullRange).first else { return nil }
        guard match.numberOfRanges > 0 else { return nil }
        let idx1 = description.index(description.startIndex, offsetBy: range.lowerBound)
        let idx2 = description.index(description.startIndex, offsetBy: range.upperBound)
        return String(description[idx1..<idx2])
    }
}

How to get Image Name used in an UIImage?

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