import UIKit
import CoreServices
   
extension UIImage {
     static func createGIF(with images: [UIImage], loopCount: Int = 0, frameDelay: Double) -> Data? {
        let fileProperties = [kCGImagePropertyGIFDictionary as String: [kCGImagePropertyGIFLoopCount as String: loopCount]] as CFDictionary
        let frameProperties = [kCGImagePropertyGIFDictionary as String: [kCGImagePropertyGIFDelayTime as String: frameDelay]] as CFDictionary
        
        let cgImages = images.compactMap { $0.cgImage }
        let url = URL(fileURLWithPath: NSTemporaryDirectory()).appendingPathComponent("animated.gif")
        if let destination = CGImageDestinationCreateWithURL(url as CFURL, kUTTypeGIF, cgImages.count, nil) {
            CGImageDestinationSetProperties(destination, fileProperties)
            for i in 0..<images.count {
                CGImageDestinationAddImage(destination, cgImages[i], frameProperties)
            }
            if CGImageDestinationFinalize(destination) {
                return try? Data(contentsOf: url)
            } else {
                return nil
            }
        }
        
        return nil
    }
   }