IOS WKWebView Fileupload won't work

Question

I'm trying to run a web application inside WKWebView and after I select the image in Photo Library, it returns to home page and doesn't upload the image. I got the message below:

2018-02-11 14:35:22.870494-0200 Tennis[7144:194670] [MC] Reading from private effective user settings. 2018-02-11 14:35:44.753840-0200 Tennis[7144:195114] [discovery] errors encountered while discovering extensions: Error Domain=PlugInKit Code=13 "query cancelled" UserInfo={NSLocalizedDescription=query cancelled}

My Code:

import UIKit
import WebKit
class ViewController: UIViewController, UIImagePickerControllerDelegate,UINavigationControllerDelegate {

    @IBOutlet weak var webView: WKWebView!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func viewDidAppear(_ animated: Bool) {

        let url:URL = URL(string: "http://serivinho:8001/")!
        let urlRequest: URLRequest = URLRequest(url: url)
        webView.load(urlRequest);
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    override func dismiss(animated flag: Bool, completion: (() -> Void)?)
    {
        if self.presentedViewController != nil {
            super.dismiss(animated: flag, completion: completion)
        }
    }
}

My Info.plist

AlvaroCryptogram AlvaroCryptogram · Accepted Answer · 2018-02-11T22:30:43

It seems that the problem gone when I moved the code from viewDidAppear to ViewDidLoad

   override func viewDidLoad() {

        let url:URL = URL(string: "http://serivinho:8001/")!
        let urlRequest: URLRequest = URLRequest(url: url)
        webView.load(urlRequest);
    }

I also changed the target version to 10.3 and added the WKWebView in the code and not in the mainstoryboard.

I still receive some log messages but they didn't prevent from working:

18-02-11 20:25:01.535257-0200 Tennis[406:75090] [App] if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction
2018-02-11 20:25:01.537713-0200 Tennis[406:75090] [App] if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction
2018-02-11 20:25:10.228575-0200 Tennis[406:75090] [Generic] Creating an image format with an unknown type is an error
2018-02-11 20:25:52.676053-0200 Tennis[406:75090] [App] if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction
2018-02-11 20:25:52.676252-0200 Tennis[406:75090] [App] if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction
2018-02-11 20:25:58.340272-0200 Tennis[406:75090] [App] if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction
2018-02-11 20:25:58.340458-0200 Tennis[406:75090] [App] if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction

IOS WKWebView Fileupload won't work

3 Answers