Webview and navigation controller - ios

Question

I have a webview in my swift app with a bunch of links on the website it is connected to. When a link is pressed, how do I make it so instead of opening the link in the same view, make it open in a new view with a back button (navigation controller). My viewcontroller.swift code is below. Any help?
import UIKit
import Parse
import PKHUD
class Home: UIViewController {
#IBOutlet var homeweb: UIWebView!
#IBOutlet var HomeActivity: UIActivityIndicatorView!
var request: NSURLRequest? = NSURLRequest(URL: NSURL(string: "https://google.com")!)
override func viewDidLoad() {
super.viewDidLoad()
if navigationController?.viewControllers.count > 1 { navigationItem.leftBarButtonItem = nil }
PKHUD.sharedHUD.contentView = PKHUDSuccessView()
PKHUD.sharedHUD.show()
PKHUD.sharedHUD.dimsBackground.boolValue
PKHUD.sharedHUD.userInteractionOnUnderlyingViewsEnabled.boolValue
PKHUD.sharedHUD.hide(afterDelay: 3.0);
if let request = request {
homeweb.loadRequest(request)
}
}
}
extension Home: UIWebViewDelegate {
func webView(webView: UIWebView, shouldStartLoadWithRequest request: NSURLRequest, navigationType: UIWebViewNavigationType) -> Bool {
if request != self.request && navigationType != .Other {
if let Home = storyboard?.instantiateViewControllerWithIdentifier("homeview") as? Home {
Home.request = request
navigationController?.pushViewController(Home, animated: true)
return false
}
}
return true
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func webViewDidStartLoad(homeweb: UIWebView)
{
HomeActivity.startAnimating()
UIApplication.sharedApplication().networkActivityIndicatorVisible = true
}
func webViewDidFinishLoad(homeweb: UIWebView)
{
HomeActivity.stopAnimating()
UIApplication.sharedApplication().networkActivityIndicatorVisible = false
title = homeweb.stringByEvaluatingJavaScriptFromString("document.title")
}
#IBAction func about(sender: UIBarButtonItem) {
let alertController = UIAlertController(title: "About Ball00n", message: "Copyright ©2014-2015 GreenBalloon, LLC James Cozzi (jc0z) jamescozzi00#gmail.com balloonhack.webs.com", preferredStyle: .Alert)
let Action1 = UIAlertAction(title: "Close", style: UIAlertActionStyle.Default, handler: nil)
alertController.addAction(Action1)
self.presentViewController(alertController, animated: true, completion: nil)
}
}

Answer 1

set the viewcontroller to be the webview's delegate and implement the following method:
func webView(webView: UIWebView, shouldStartLoadWithRequest request: NSURLRequest, navigationType: UIWebViewNavigationType) -> Bool {
// check for your specific condition
if request.URL?.absoluteString == "some link" {
// push viewcontroller here or perform a segue
return false // to not follow the link in the webview
}
return true
}
now - after understanding what you really try to achieve :) - i did the following:
setup a viewcontroller in storyboard with just a webview all over the screen. ctrl drag from the webview to the webviewcontroller and set it to be its delegate. set the viewcontroller to a custom class "WebViewController". also set the storyboard ID to "WebViewController". drag from the webview to the WebViewController class and connect an IBOutlet called "webView". finally your WebViewController class should look like this:
import UIKit
class WebViewController: UIViewController {
#IBOutlet weak var webView: UIWebView!
var request: NSURLRequest? = NSURLRequest(URL: NSURL(string: "http://YOUR_INITIAL_WEBSITE")!)
override func viewDidLoad() {
super.viewDidLoad()
if navigationController?.viewControllers.count > 1 {
navigationItem.leftBarButtonItem = nil
}
if let request = request {
webView.loadRequest(request)
}
}
}
extension WebViewController: UIWebViewDelegate {
func webView(webView: UIWebView, shouldStartLoadWithRequest request: NSURLRequest, navigationType: UIWebViewNavigationType) -> Bool {
if request != self.request && navigationType != .Other {
if let webViewController = storyboard?.instantiateViewControllerWithIdentifier("WebViewController") as? WebViewController {
webViewController.request = request
navigationController?.pushViewController(webViewController, animated: true)
return false
}
}
return true
}
func webViewDidFinishLoad(webView: UIWebView) {
title = webView.stringByEvaluatingJavaScriptFromString("document.title")
}
}
at least this is a start :)