MBProgressHud with gif image

Question

Can I use gif image instead of default loading indicator? I am using this code so far but not getting any result. Can anyone suggest what is wrong in this code?

Answer 1

Swift 3 I have created two functions in Swift. File name is Globle.Swift. After Create a UIApplication.Swift file and put the following extension for getting topViewController

public extension UIApplication {

class func topViewController(_ viewController: UIViewController? = UIApplication.shared.keyWindow?.rootViewController) -> UIViewController? {

    if let nav = viewController as? UINavigationController {
        return topViewController(nav.visibleViewController)
    }
    if let tab = viewController as? UITabBarController {
        if let selected = tab.selectedViewController {
            return topViewController(selected)
        }
    }
    if let presented = viewController?.presentedViewController {
        return topViewController(presented)
    }
    if let slide = viewController as? SlideMenuController {
        return topViewController(slide.mainViewController)
    }
    return viewController
}

}

open class func showLoadingSpinner(_ message: String? = "", sender: UIView? = UIApplication.topViewController()?.view) -> Void {
    let  HUD = MBProgressHUD.showAdded(to: sender!, animated: true)
    HUD.label.text = message
    HUD.bezelView.color = UIColor.clear
    let imageViewAnimatedGif = UIImageView()
    //The key here is to save the GIF file or URL download directly into a NSData instead of making it a UIImage. Bypassing UIImage will let the GIF file keep the animation.
    let filePath = Bundle.main.path(forResource: "loader", ofType: "gif")
    let gifData = NSData(contentsOfFile: filePath ?? "") as Data?
    imageViewAnimatedGif.image = UIImage.sd_animatedGIF(with: gifData)
    HUD.customView = UIImageView(image: imageViewAnimatedGif.image)
    var rotation: CABasicAnimation?
    rotation = CABasicAnimation(keyPath: "transform.rotation")
    rotation?.fromValue = nil
// If you want to rotate Gif Image Uncomment 
  //  rotation?.toValue = CGFloat.pi * 2
    rotation?.duration = 0.7
    rotation?.isRemovedOnCompletion = false
    HUD.customView?.layer.add(rotation!, forKey: "Spin")
    HUD.mode = MBProgressHUDMode.customView
   // Change hud bezelview Color and blurr effect
    HUD.bezelView.color = UIColor.clear
    HUD.bezelView.tintColor = UIColor.clear
    HUD.bezelView.style = .solidColor
    HUD.bezelView.blurEffectStyle = .dark
    // Speed
    rotation?.repeatCount = .infinity
    HUD.show(animated: true)

}

open class func dismissLoadingSpinner(_ sender: UIView? = UIApplication.topViewController()?.view) -> Void {
    MBProgressHUD.hide(for: sender!, animated: true)
}


// Call Function from your viewController to Show 
Global.showLoadingSpinner(sender: self.view)
// Call Function from your view controller to Hide
Global.dismissLoadingSpinner(self.view)