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iosswiftuiimageviewsdwebimage

How to delete cached SDWebImage from a button's imageView


So I have a UIButton whose imageView is set to an image using a download URL. For this purpose I use SDWebImage.

Problem is, when I press the delete button, I want the image to completely disappear but I guess it does not work because the image is still being retrieved from cache. How do I solve this?

class ViewController: UIViewController{

    var profileButton: UIButton = {
        let button = UIButton(type: .system)
        return button
    }()

    var user: User?

    override func viewDidLoad() {
        super.viewDidLoad()
        view.addSubview(profileButton)
        profileButton.addTarget(self, action: #selector(handleDelete), for: .touchUpInside)

        self.loadUserPhotos()
    }

    fileprivate func loadUserPhotos(){
        let profileImageUrl = self.user?.profileImageUrl1
        if let imageUrl = profileImageUrl, let url = URL(string: imageUrl){
            SDWebImageManager.shared().loadImage(with: url, options: .continueInBackground, progress: nil) { (image, _, _, _, _, _) in
                self.profileButton.setImage(image?.withRenderingMode(.alwaysOriginal), for: .normal)
            }
        }
    }

    @objc func handleDelete(){
        self.user?.profileImageUrl1 = ""
        self.profileButton.imageView?.image = nil
        self.loadUserPhotos()
    }
}

Solution

  • To remove the image from UIButton you need to mention the state as well.

    self.profileButton.setImage(nil, for: .normal)