ZaloPay Prerequisite

@implementation AppDelegate
 
   ...
   ...
 
- (BOOL)application: (UIApplication *)application openURL: (NSURL *)url options: (NSDictionary<UIApplicationOpenURLOptionsKey, id> *)options {
 
    [[PGWSDKHelper shared] universalPaymentResultObserverWithURL: url];
     
    return true;
}
 
@end

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
 
    ...
    ...
     
    func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
         
        PGWSDKHelper.shared.universalPaymentResultObserver(url: url)
         
        return true
    }
}