I'm a newbie on IOS development. Recently, I use UIWebView to load a webpage, and this is successful, and try to open links in it on the same UIWebView instance. However, after a click on some link, there's no response from UIWebView, and in xcode, it reports
2015-03-29 23:42:07.246 xxxxx[17349:1251340] Unknown result for URL http://www.xxxxxx.org/bugs/xxxxxx-xxxx-xxxxxx, for frame
I looked it up on Internet but I got little useful help. I know someone said to implement func webView in UIWebViewDelegate, but my app still doesn't work.
Can someone help me? I'm using the latest version of swift language. And a snippet of code is :
import UIKit
class ViewController: UIViewController, UIWebViewDelegate {
#IBOutlet weak var front: UIWebView!
func webView(webView: UIWebView, shouldStartLoadWithRequest request: NSURLRequest, navigationType nt: UIWebViewNavigationType) -> Bool {
if (nt ==.LinkClicked){
return true
}
return true;
}
override func viewDidLoad() {
super.viewDidLoad()
UIWebView.loadRequest(self.front)(NSURLRequest(URL: NSURL(string: "http://www.google.com")!)) // Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
Here is the sample Code :
UIWebView.loadRequest(webviewInstance)(NSURLRequest(URL: NSURL(string: "www.google.in")))
Related
My app has a basic webview controller to perform some operations. This view in the storyboard is not much besides a wrapper around a UIWebView. The controller itself has various public functions that can be called to load pages in the webview, like so:
class WebViewController: UIViewController, UIWebViewDelegate {
// MARK: Properties
#IBOutlet var webView: UIWebView!
// MARK: UIViewController
override func viewDidLoad() {
super.viewDidLoad()
webView.delegate = self
loadHomePage()
}
// MARK: Public
public func loadHomePage() {
navigateWebView(to: HOME_PAGE)
}
public func loadSettingsPage() {
navigateWebView(to: SETTINGS_PAGE)
}
public func loadSignOutPage() {
navigateWebView(to: SIGN_OUT_PAGE)
}
// MARK: Private
private func navigateWebView(to url: String) {
let request = URLRequest(url: URL(string: url)!)
webView.loadRequest(request)
}
I'm trying to write unit tests that verify that the proper URL is sent to the loadRequest function of the webview. Note that I don't actually care about loading the URL; this is just a unit test, so all I really want to test is that loadSettingsPage sends a URLRequest with the SETTINGS_PAGE URL to the webview to load, for example.
I tried something like this, with no success:
_ = webViewController.view // Calls viewDidLoad()
XCTAssertEqual(webViewController.webView.request?.url?.absoluteString, HOME_PAGE)
The value of the first part of the assertEqual was nil.
I assume I need to mock out the webView somehow but I'm not sure how to go about that. Any suggestions?
As a follow-up, I'd also like to be able to test when things like webView.reload() and webview.goBack() are called, so any pointers there would be appreciated as well. Thanks!
I'm working on a simple web wrapper application for iOS, and I'm having some issues with WKWebView and WKNavigationDelegate. I want to use the didFinishNavigation function from WKNavigationDelegate, so I can grab information from the URL query on navigation (namely a session GUID). My program launches correctly and loads my webpage when I comment out the "webView.navigationDelegate = self" line, but when I include that, my app crashes immediately with the following errors:
" -[UIWebView setNavigationDelegate:]: unrecognized selector sent to instance
0x7f8251e058f0"
"*** Terminating app due to uncaught exception 'NSInvalidArgumentException',
reason: '-[UIWebView setNavigationDelegate:]: unrecognized selector sent to
instance 0x7f8251e058f0'"
I noticed that both of these error messages include "UIWebView," when I'm trying to use WKWebView, so I tried to use the "custom class" field on the webview from the identity inspector part of the storyboard, but when I try to run after that, I get "(lldb)." Any help/insight would be appreciated, I'm including my code below:
import UIKit
import WebKit
class ViewController: UIViewController, WKNavigationDelegate {
#IBOutlet weak var webView: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
print("view did load")
webView.navigationDelegate = self
loadURL("http://mydomain/login.html")
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
private func loadURL(targetURL: String){
if let url = NSURL(string: targetURL) {
let request = NSURLRequest(URL: url)
webView.loadRequest(request)
}
}
private func checkDomainGetSessionGUID(){
print ("we are here")
if let query = webView.URL?.query {
let queryArr = query.componentsSeparatedByString("&")
var parsedQuery : [String: String] = [:]
for field in queryArr {
let parts = field.componentsSeparatedByString("=")
parsedQuery.updateValue(parts[1], forKey: parts[0])
print ("key = \(parts[0]) and value = \(parts[1])")
}
}
else {
print ("didn't enter the if let")
}
}
func webView(webView: WKWebView, didFinishNavigation navigation: WKNavigation!) {
print ("delegate")
checkDomainGetSessionGUID()
}
}
PROCEDURE 1:
Step-1: Check UIElements that you are using in Storyboard design. if you had used Web view instead of using **WebKit View this error might come.Check your IBOutlet connection.
Step-2: Check your IOS deployment target, It must be IOS 11 and above because of UIWebKit View was released in IOS 8 but it contains a bug that was fixed in IOS 11 only. So set your deployment target 11 and above.
Step-3: Check your info.plist property. The following property should add in the listApp Transport Security Settings -> Allow Arbitrary Loads -> YES
PROCEDURE 2:
If in case you want deployment target as IOS 10 or below IOS 11 means you can implement like this
Step-1: Create a new UIViewcontroller with its swift ViewController file. And add below-given code to run your URL:
import UIKit
import WebKit
class ViewController: UIViewController, WKUIDelegate {
var webView: WKWebView!
override func loadView() {
let webConfiguration = WKWebViewConfiguration()
webView = WKWebView(frame: .zero, configuration: webConfiguration)
webView.uiDelegate = self
view = webView
}
override func viewDidLoad() {
super.viewDidLoad()
let myURL = URL(string:"https://www.apple.com")
let myRequest = URLRequest(url: myURL!)
webView.load(myRequest)
}}
I hope this might be helpful to you...
I was getting this error inside (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation
I removed the line [super webView:webView didFinishNavigation:navigation]; and everything worked as I expected, I'm not sure if it's hacky though.
Learning swift 2/ Xcode 7 and creating a app iOS 9 where I can enter a custom address. I have mapkit working and can search regular address. I have my current location working. Instead of entering an address: "Number,Street, city, zip code", I want the user to enter: PR33.1 for example, and that would show the user that location. I have the long and lats for the custom address's, I've read many things on geocoding and annotations but nothing that would let me accomplish what I need. Can this be done? jSon file maybe.. I'm really new at this...
thanks
import UIKit
class ViewController: UIViewController {
#IBOutlet weak var textField: UITextField!
let arbitraryString: [String:String] =
["161 RL2": "23908709138882,-106.7433588579297",
"40.9 RL112":"32.393144,-106.727762"]
#IBAction func enterButtonTapped(sender: AnyObject) {
if let textField = arbitraryString["161 RL2"] {
print(" \(textField).")
} else {
print("That is not in the dictionary.")
}
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
Technologies Used: XCode 6, iOS8, Swift
I'm loading a webpage in a uiwebview and I'm also appending a new stylesheet to the body of that webpage and overwriting some of its styles. But, there is a delay (maybe 1 second or 2) between when the webpage loads and the styles are applied so you can see the webpage before its restyled. I'm using javascript to append the new styles to the body of the webpage. How can I fix this so that the webpage will only show with the styles are already applied? Here is my code:
import UIKit
class SecondViewController: UIViewController, UIWebViewDelegate {
#IBOutlet var website: UIWebView!
var url = "http://www.fake-website-url.net"
func loadUrl() {
let requestURL = NSURL(string: url)
let request = NSURLRequest(URL: requestURL!)
website.loadRequest(request)
}
override func viewDidLoad() {
super.viewDidLoad()
website.delegate = self
loadUrl()
}
func webViewDidFinishLoad(website: UIWebView) {
var loadStyles = "var script = document.createElement('link');script.type = 'text/css';script.rel = 'stylesheet';script.href = 'http://fake-url.styles.css';document.getElementsByTagName('body')[0].appendChild(script);"
website.stringByEvaluatingJavaScriptFromString(loadStyles)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
Note, I'm using Swift.
What I would do is create a property to store the downloaded page. Then override the property setter to add your custom style sheet after the page is saved to that property. Then finally load it into your Web View.
Hope that makes sense.
My Swift app with UIWebView crashes with exc_bad_access when trying to get current URL. It also crashes only in some cases (often depends on the actions performed by user within that UIWebView). Try loading the url provided in code and then tapping cancel. It never crashes though if I don't implement methods from UIWebViewDelegate protocol.
class AuthViewController: UIViewController, UIWebViewDelegate {
#IBOutlet var authWebView: UIWebView
init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: NSBundle?) {
super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
// Custom initialisation
}
override func viewDidLoad() {
super.viewDidLoad()
self.authWebView.delegate = self
var url = NSURL(string:"http://oauth.vk.com/authorize?client_id=4423823&scope=audio&display=mobile&v=5.21")
var urlRequest = NSMutableURLRequest(URL: url)
self.authWebView.loadRequest(urlRequest)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func webViewDidFinishLoad(webView:UIWebView) {
NSLog( webView.request!.URL!.absoluteString )
}
}
I was also trying to implement this method to check if request object exists before getting the URL but it didn't help.
func webView(webView: UIWebView!,
shouldStartLoadWithRequest request: NSURLRequest!,
navigationType navigationType: UIWebViewNavigationType) -> Bool {
if !self.authWebView.request {
return false
} else {
return true
}
}
I've found the error:
Some URL contains special characters, such as %# or # which is used for formatting in NSLog. If any of those characters is used in the string the first argument for NSLog, than more arguments required for formatting.
E.G.
NSLog("http://someurl.com/") // this is fine (no special chars used)
NSLog("http://someurl.com/#somehash?x=%#") // this is not fine (%# is used in URL, NSLog thinks that I'm formatting the string
var someURLString = "http://someurl.com/#somehash?x=%#"
NSLog("%#", someURLString) // this is fine and the way it has to be done
Thanks everyone who took a look at my question!