How to add GIF images to Assets folder and load them in UIImageView programmatically

According to your comment, this is the solution that you are searching:

1. make an extension of UIImage which uses SwiftGif:

   extension UIImage {
     public class func gif(asset: String) -> UIImage? {
       if let asset = NSDataAsset(name: asset) {
          return UIImage.gif(data: asset.data)
       }
       return nil
     }
   }
   

2. Then tuning @Ganesh suggestion with the extension you might do something like:

   imageView.image = UIImage.gif(asset: "YOUR_GIF_NAME_FROM_ASSET")
   

To load gif into UIImage I suggest two libraries

1) you can use this library

simply you can load it into UIImageView

let imageData = try! Data(contentsOf: Bundle.main.url(forResource: "logo-animation", withExtension: "gif")!)
let gifImage = UIImage.gif(data: data!)
imageView.image = gifImage

2) Or you can use this library

import FLAnimatedImage

then add outlet

@IBOutlet weak var fashImage: FLAnimatedImageView!

then use this code

let imageData = try! Data(contentsOf: Bundle.main.url(forResource: "logo-animation", withExtension: "gif")!)
fashImage.animatedImage = FLAnimatedImage(animatedGIFData: imageData)

Hope this will help you