I am would like open a website, using a password/username (basic)Authorization in a WKWebView.
To do that I use the method didReceiveAuthenticationChallenge.
import UIKit
import WebKit
class ViewController: UIViewController {
#IBOutlet weak var container: UIView!
var webView: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
webView = WKWebView()
container.addSubview(webView)
let urlStr = "https://vplan.bielefeld-marienschule.logoip.de/subst_002.htm"
let url = NSURL(string: urlStr)!
let request = NSURLRequest(url: url as URL)
webView.load(request as URLRequest)
}
func webView(webView: WKWebView, didReceiveAuthenticationChallenge challenge: URLAuthenticationChallenge, completionHandler: (URLSession.AuthChallengeDisposition, URLCredential?) -> Void){
if challenge.protectionSpace.host == "https://vplan.bielefeld-marienschule.logoip.de/subst_002.htm" {
let userStr = "********"
let passwordStr = "********"
let credential = URLCredential(user: userStr, password: passwordStr, persistence: URLCredential.Persistence.forSession)
challenge.sender?.use(credential, for: challenge)
completionHandler(.useCredential, credential)
}
}
override func viewDidAppear(_ animated: Bool) {
let frame = CGRect(x: 0, y: 0, width: container.bounds.width, height: container.bounds.height)
webView.frame = frame
But for some reason, it does not work.
Adding the code line
completionHandler(URLSession.AuthChallengeDisposition.UseCredential, credential)
like in the description here: Authentication with WKWebView in Swift produced an error.
I have also tried to change the challenge.protectionSpace.host into vplan.bielefeld-marienschule.logoip.de:443 which is shown as the login adress in the Safari pop-up and into the IP-Adress of the server (93.206.31.253).
Hope you can help me.
Thank You!
In your code, you have not set the navigation delegate of the web view to your controller.
Change the definition of your controller to:
class ViewController: UIViewController, WKNavigationDelegate
And after creating your web view, set the navigation delegate to your controller:
webView.navigationDelegate = self
Depending on if you are using Swift 3, you may need to change the signature of the method to webView(_:didReceive:completionHandler:).
Related
I have use webkit to show url on my app.
when I click on image button(green button in ), it shows
camera or photo library.
issue is, when click Use photo, the webkit
refresh automatically instead showing on page
I have already give photo usage, media, camera permission in plist file
my code is
import UIKit
import WebKit
import Alamofire
class ContinueViewController: UIViewController, WKUIDelegate {
#IBOutlet weak var activityView: UIActivityIndicatorView!
#IBOutlet weak var webview: WKWebView!
func getPostString(params:[String:Any]) -> String{
var data = [String]()
for(key, value) in params
{
data.append(key + "=\(value)")
}
return data.map { String($0) }.joined(separator: "&")
}
var url: URL?
var traderCategoryId = 0, tradeSkillId = 0
override func viewDidLoad() {
super.viewDidLoad()
webview.navigationDelegate = self
self.navigationController?.navigationBar.isHidden = false
webview.uiDelegate = self
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
activityView.startAnimating()
guard let url = self.url else { return }
var req = URLRequest(url: url)
let params = ["id" : id,"trader_skills" : tradeSkillId]
let postString = self.getPostString(params: params)
req.addValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
req.httpMethod = "POST"
req.httpBody = postString.data(using: .utf8)
self.webview.load(req)
}
}
extension ContinueViewController: WKNavigationDelegate {
func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
activityView.stopAnimating()
}
}
extension UIImagePickerController {
open override func viewDidLoad() {
super.viewDidLoad()
// self.modalPresentationStyle = .fullScreen
}
}
issue is, when click Use photo, the webkit refresh automatically instead showing on page
Because you self.webview.load(req) in
override func viewWillAppear(_ animated: Bool) {
shows camera or photo library, then return to this page
func viewWillAppear called again
self.webview.load(req) called again
do it simple ,
put self.webview.load(req) the relevant in
override func viewDidLoad() {
I created a very simple iOS app (Swift 5). It's just a WKWebView that loads my PWA url.
Everything works fine except all Mail me links. When I click them, nothing happens, my mail app doesn't open.
This is the code of my ViewController.swift:
//
// ViewController.swift
// panel
//
// Created by kevin on 25/07/2019.
// Copyright © 2019 umono. All rights reserved.
//
import UIKit
import WebKit
class ViewController: UIViewController, WKUIDelegate {
var webView: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
let myURL = URL(string:"https://someUrlToMyApp.appspot.com")
let myRequest = URLRequest(url: myURL!)
webView.load(myRequest)
if #available(iOS 11.0, *) {
webView.scrollView.contentInsetAdjustmentBehavior = .never;
}
}
override func loadView() {
let webConfiguration = WKWebViewConfiguration()
webConfiguration.dataDetectorTypes = [.all]
webView = WKWebView(frame: .zero, configuration: webConfiguration)
webView.uiDelegate = self
view = webView
}
}
EDIT:
Thx guy's, here is my working code:
//
// ViewController.swift
// panel
//
// Created by kevin on 25/07/2019.
// Copyright © 2019 umono. All rights reserved.
//
import UIKit
import WebKit
class ViewController: UIViewController, WKUIDelegate {
var webView: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
let myURL = URL(string:"https://someUrlToMyApp.appspot.com")
let myRequest = URLRequest(url: myURL!)
webView.load(myRequest)
if #available(iOS 11.0, *) {
webView.scrollView.contentInsetAdjustmentBehavior = .never;
}
webView.navigationDelegate = self
}
override func loadView() {
let webConfiguration = WKWebViewConfiguration()
webConfiguration.dataDetectorTypes = [.all]
webView = WKWebView(frame: .zero, configuration: webConfiguration)
webView.uiDelegate = self
view = webView
}
}
extension ViewController: WKNavigationDelegate {
func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction,
decisionHandler: #escaping (WKNavigationActionPolicy) -> Void) {
guard
let url = navigationAction.request.url else {
decisionHandler(.cancel)
return
}
let string = url.absoluteString
if (string.contains("mailto:")) {
UIApplication.shared.open(url, options: [:], completionHandler: nil)
decisionHandler(.cancel)
return
}
decisionHandler(.allow)
}
}
One way to do what you want would be to implement WKNavigationDelegate:
import UIKit
import WebKit
class ViewController: UIViewController {
#IBOutlet weak var webView: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
guard
let file = Bundle.main.path(forResource: "test", ofType: "html"),
let html = try? String(contentsOfFile: file) else {
return
}
webView.navigationDelegate = self
webView.loadHTMLString(html, baseURL: nil)
}
#IBAction func didTapButton(_ sender: Any) {
let email = "email#email.com"
guard
let url = URL(string: "mailto:\(email)") else {
return
}
UIApplication.shared.open(url, options: [:], completionHandler: nil)
}
}
extension ViewController: WKNavigationDelegate {
func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction,
decisionHandler: #escaping (WKNavigationActionPolicy) -> Void) {
guard
let url = navigationAction.request.url,
let scheme = url.scheme else {
decisionHandler(.cancel)
return
}
if (scheme.lowercased() == "mailto") {
UIApplication.shared.open(url, options: [:], completionHandler: nil)
// here I decide to .cancel, do as you wish
decisionHandler(.cancel)
return
}
decisionHandler(.allow)
}
}
Here you have a ViewController that has webView as an outlet, this WKWebView would load an html file like this:
Mail me
And I also added in storyboard a button just for reference, which would have the IBAction didTapButton described above.
The key here is:
func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction,
decisionHandler: #escaping (WKNavigationActionPolicy) -> Void)
Which would give you the URL and let you decide what policy is suitable for it. Here I check if it contains mailto: as I already know this is what you're interested in so if it does, I simply open the URL as I would do if the user presses an UIButton visible on screen.
Hope it helps, cheers!
LE: Make sure you run on a real device (simulators don't have Mail app installed), also make sure you have the Mail app installed, cause I didn't..
I just started developing with swift, so I am sorry if the question is basic/stupid.
I have the following setup, just a test
import WebKit
import UIKit
class ViewController: UIViewController, WKNavigationDelegate {
var webView: WKWebView!
override func loadView() {
webView = WKWebView()
webView.navigationDelegate = self
view = webView
}
override func viewDidLoad() {
super.viewDidLoad()
let url = URL(string: "https://hackingswift.com")!
webView.load(URLRequest(url:url))
webView.allowsBackForwardNavigationGestures = true
}
}
Unfortunately the browser doesn't load. The simulator only shows an empty navigation bar.
Suggestions? I am following a tutorial on hackingswift, so it's supposed to work.
You have to add webView as a subview or make an IBOutlet using Interface builder.
Try this:
class ViewController: UIViewController, WKNavigationDelegate {
var webView: WKWebView?
func loadView() {
webView = WKWebView()
webView?.navigationDelegate = self
self.view.addSubview(webView!)
}
override func viewDidLoad() {
super.viewDidLoad()
self.loadView()
let url = URL(string: "https://hackingswift.com")!
webView?.load(URLRequest(url:url))
webView?.allowsBackForwardNavigationGestures = true
}
}
If you want it a bit more simple (without nullable variable), for example:
class ViewController: UIViewController, WKNavigationDelegate {
var webView = WKWebView()
override func viewDidLoad() {
super.viewDidLoad()
webView.navigationDelegate = self
self.view.addSubview(webView)
webView?.allowsBackForwardNavigationGestures = true
self.loadUrl("https://hackingswift.com")
}
func loadUrl(_ url: String) {
if let url = URL(string: url) {
webView.load(URLRequest(url:url))
}
}
}
EDIT: it looks like some websites to load, while others do not, even if they are secure. If I put apple.com in the example, it loads, but a few others do not
Your url should be started with http or https for the webView to load.
Another possible reason is that your url containing an invalid certificate. Add the delegate function below into your code. You have to let WKWebView to bypass the certificate checking. However, this code is never recommended to go into production. You should be careful about what website your webView should and will load.
func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: #escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
let cred = URLCredential(trust: challenge.protectionSpace.serverTrust!)
completionHandler(.useCredential, cred)
}
The problem is this line:
let url = URL(string: "https://hackingswift.com")!
There is no such URL on the Internet, so you're not actually going to see anything. (You won't see anything if you paste that URL into any browser.)
So change that line to this:
let url = URL(string: "https://www.hackingwithswift.com")!
Now run the app, and presto, you'll see the web site:
I am trying to load a URL using webView in swift 4. I tried https://www.google.co.in and it works fine. and the mobile site for the specific URL works fine with android.
But when I tried this in the simulator, it is loading forever.
my code is below:
import UIKit
class WebViewController: UIViewController, UIWebViewDelegate {
#IBOutlet weak var webView: UIWebView!
let activityIndicator = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.whiteLarge)
override func viewDidLoad() {
super.viewDidLoad()
webView.delegate = self
if let url = URL(string: "https://www.myurl.com") {
let request = URLRequest(url: url)
webView.loadRequest(request)
}
}
public func webViewDidStartLoad(_ webView: UIWebView)
{
activityIndicator.center = CGPoint(x: self.view.bounds.size.width/2, y: self.view.bounds.size.height/2)
self.view.addSubview(activityIndicator)
activityIndicator.color = UIColor.red
self.activityIndicator.startAnimating()
}
public func webViewDidFinishLoad(_ webView: UIWebView)
{
self.activityIndicator.stopAnimating()
}
}
I don't think that my code is wrong. but I was wondering if I can do anything to make it work on simulator.
Thanks
I just made a small project with your code and no problem in the simulator, https://www.google.co.in loaded just fine.
I noticed you mention you are using Swift 4, I think you should consider using WebKit View (WKWebView) since UIWebView is deprecated. In Apple's documentation you can see how to implement it, it's pretty straight forward.
If your certificate is not trusted you must add to Info.plist App Transport Security Settings, Allow Arbitrary Loads to YES. (This is not recommended).
The code is really simple, give it a try:
import UIKit
import WebKit
class WebViewController: UIViewController, WKUIDelegate, WKNavigationDelegate {
#IBOutlet weak var webView: WKWebView!
override func loadView() {
let webConfiguration = WKWebViewConfiguration()
webView = WKWebView(frame: .zero, configuration: webConfiguration)
webView.uiDelegate = self
webView.navigationDelegate = self
view = webView
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
let myURL = URL(string: "https://www.myurl.com")
let myRequest = URLRequest(url: myURL!)
webView.load(myRequest)
}
func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: #escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
if let serverTrust = challenge.protectionSpace.serverTrust {
completionHandler(.useCredential, URLCredential(trust: serverTrust))
}
}
}
I'm messing around with pdfs at the moment. I'm attempting to load a PDF into the system and write out the same PDF to gain an understandings of the the whole procedure.
The problem I've got it is that I'm having to load the pdf from the web and because the WebViewUI.loadRequest is asynchronous, it isn't completed in time.
override func viewDidLoad() {
super.viewDidLoad()
let filePath = getDocumentsDirectory().stringByAppendingPathComponent("output.pdf")
let url : NSURL! = NSURL(string: "http://www.nhs.uk/NHSEngland/Healthcosts/Documents/2014/HC5(T)%20June%202014.pdf")
loadTemplate(url, completion: {(webView: UIWebView) -> Void in
print("callback started")
let pdf = self.toPDF(webView)
do {
pdf!.writeToFile(filePath, atomically: true)
} catch {
// failed to write file – bad permissions, bad filename, missing permissions, or more likely it can't be converted to the encoding
}
print("callback started")
})
print("Finished viewDidLoad")
}
func loadTemplate(url: NSURL, completion: (webView: UIWebView) -> Void) {
print("Start loadTemplate")
// do some crunching to create the SketchAnimation instance...
let webView = UIWebView(frame: CGRectMake(20, 100, 300, 40))
webView.loadRequest(NSURLRequest(URL: url))
self.view.addSubview(webView)
// invoke the completion callback
completion(webView: webView)
print("finished loadTemplate")
}
How do I add a callback to the loadRequest instead of loadTemplate?
You don't, exactly. You'd set up your view controller to be the web view's delegate and implement the webViewDidFinishLoad method. In that method you'd check to make sure the load that finished is the one you were after, and if so, then you'd invoked the code you want to run when the load is complete.
Here is a basic example of how to set that up:
//
// ViewController.swift
//
import UIKit
class ViewController: UIViewController, UIWebViewDelegate {
#IBOutlet var webView: UIWebView!
var url = NSURL(string: "http://google.com")
override func viewDidLoad() {
super.viewDidLoad()
//load initial URL
let req = NSURLRequest(URL : url!)
webView.delegate = self
webView.loadRequest(req)
}
func webViewDidStartLoad(webView : UIWebView) {
print("AA")
}
func webViewDidFinishLoad(webView : UIWebView) {
print("BB")
}
}