UIImage is equal to

Question

I need to check if a file loaded into an UIImage object file is equal to another image and execute some actions if so. Unfortunately, it\'s not working.

Answer 1

You can convert your UIImage instances to NSData instances and compare them.

if let emptyImage = UIImage(named: "empty") {
    let emptyData = UIImagePNGRepresentation(emptyImage)
    let compareImageData = UIImagePNGRepresentation(image1.image)

    if let empty = emptyData, compareTo = compareImageData {
        if empty.isEqualToData(compareTo) {
            // Empty image is the same as image1.image
        } else {
            // Empty image is not equal to image1.image
        }
    } else {
        // Creating NSData from Images failed
    }
}