How to get Image Name used in an UIImage? - iphone

Question

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

Answer 1

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.

Answer 2

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

Answer 3

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.

Answer 4

this code will help you out
NSString *imgName = [self.imgView1st image].accessibilityIdentifier;
NSLog(#"%#",imgName);
[self.imgView2nd setImage:[UIImage imageNamed:imgName]];

Answer 5

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])
}
}

Answer 6

This answer (https://stackoverflow.com/a/72542728/897465) has (what I believe) the best answer:
let img = UIImage(named: "something")
img?.imageAsset?.value(forKey: "assetName")
Here's a handy extension for it:
extension UIImage {
var containingBundle: Bundle? {
imageAsset?.value(forKey: "containingBundle") as? Bundle
}
var assetName: String? {
imageAsset?.value(forKey: "assetName") as? String
}
}