C# UIWebView类代码示例

		public override void ViewDidLoad ()
		{
			base.ViewDidLoad ();

			webView = new UIWebView (new RectangleF(0, (_addCancelButton) ? navigationBarHeight : 0, View.Frame.Width, (_addCancelButton) ? View.Frame.Height - navigationBarHeight : View.Frame.Height));
			webView.Delegate = new WebViewDelegate(RequestStarted, RequestFinished);

			if (!_addCancelButton) {
				this.View.AddSubview (webView);
			} else {
				var cancelButton = new UIBarButtonItem (UIBarButtonSystemItem.Cancel);
				cancelButton.Clicked += (object sender, EventArgs e) => {
					_cancelled();
					this.DismissViewController(true, null);
				};

				var navigationItem = new UINavigationItem {
					LeftBarButtonItem = cancelButton
				};

				navigationBar = new UINavigationBar (new RectangleF (0, 0, View.Frame.Width, navigationBarHeight));
				navigationBar.PushNavigationItem (navigationItem, false);

				this.View.AddSubviews (navigationBar, webView);
			}
		}

        public override bool FinishedLaunching(UIApplication app, NSDictionary options)
        {
            App_Window = new UIWindow(UIScreen.MainScreen.Bounds);
            var vc = new UIViewController();
            var view = new UIView();

            var button = UIButton.FromType(UIButtonType.RoundedRect);
            button.Frame = new RectangleF(0, 0, 100, 40);
            button.SetTitle("Do It", UIControlState.Normal);
            button.TouchDown += delegate {
                Test_JSON();
            };
            view.AddSubview(button);

            Browser = new UIWebView();
            Browser.Frame = new RectangleF(0, 50, UIScreen.MainScreen.Bounds.Width,
                UIScreen.MainScreen.Bounds.Height-50);
            view.AddSubview(Browser);

            vc.View = view;
            App_Window.RootViewController = vc;
            App_Window.MakeKeyAndVisible();

            return true;
        }

 public override bool ShouldStartLoad(UIWebView webView, NSUrlRequest request, UIWebViewNavigationType navigationType)
 {
     bool shouldStart = true;
     string url = request.Url.ToString();
     if (url.Contains("js-frame"))
     {
         shouldStart = false;
         string pendingArgs = bridge.webBrowser.EvaluateJavascript("window.locationMessenger.pendingArg.toString();");
         // Using JsonConvert.Deserialze<string[]> blows up under MonoTouch, so manually build the array of args instead
         JArray argsJArray = (JArray)Newtonsoft.Json.JsonConvert.DeserializeObject(pendingArgs);
         string[] args = new string[argsJArray.Count];
         for (int i = 0; i < argsJArray.Count; i++)
             args[i] = (string)argsJArray[i];
         if (args[0] == "HandleScriptPropertyChanged")
         {
             if (args.Length == 3)
                 bridge.HandleScriptPropertyChanged(args[1], args[2], null);
             else
                 bridge.HandleScriptPropertyChanged(args[1], args[2], args[3]);
         }
         else if (args[0] == "InvokeViewModelIndexMethod")
             bridge.InvokeViewModelMethod(args[1], args[2], args[3]);
         else if (args[0] == "InvokeViewModelMethod")
             bridge.InvokeViewModelMethod(args[1], args[2]);
         else if (args[0] == "HandleDocumentReady")
             bridge.HandleDocumentReady();
         else if (args[0] == "HostLog")
             bridge.HostLog(args[1]);
         else
             SpinnakerConfiguration.CurrentConfig.Log(SpinnakerLogLevel.Error,"Ignoring unrecognized call from javascript for [" + args[0] + "] - this means that javascript in the view is trying to reach the host but with bad arguments");
     }
     return shouldStart;
 }

        public override void ViewDidLoad()
        {
            base.ViewDidLoad();

            if (!string.IsNullOrEmpty(IdentityProviderName))
                Title = IdentityProviderName;

            _webView = new UIWebView(new RectangleF(0,0, View.Bounds.Width, View.Bounds.Height))
            {
                AutoresizingMask = UIViewAutoresizing.FlexibleLeftMargin | UIViewAutoresizing.FlexibleBottomMargin
            };
            _webView.ShouldStartLoad += ShouldStartLoad;
            _webView.LoadStarted +=
                (sender, args) => UIApplication.SharedApplication.NetworkActivityIndicatorVisible = true;
            _webView.LoadFinished +=
                (sender, args) => UIApplication.SharedApplication.NetworkActivityIndicatorVisible = false;

            _webView.LoadError += (sender, args) =>
            {
                //Some providers have this strange Frame Interrupted Error :-/
                if (args.Error.Code == 102 && args.Error.Domain == "WebKitErrorDomain") return;

                _messageHub.Publish(new RequestTokenMessage(this) { TokenResponse = null });
            };

            View.AddSubview(_webView);

            _webView.LoadRequest(new NSUrlRequest(Url));
        }

        bool HandleShouldStartLoad(UIWebView webView, NSUrlRequest request, UIWebViewNavigationType navigationType)
        {
            // If the URL is not our own custom scheme, just let the webView load the URL as usual
            const string scheme = "hybrid:";

            if (request.Url.Scheme != scheme.Replace (":", ""))
                return true;

            // This handler will treat everything between the protocol and "?"
            // as the method name.  The querystring has all of the parameters.
            var resources = request.Url.ResourceSpecifier.Split ('?');
            var method = resources [0];
            var parameters = System.Web.HttpUtility.ParseQueryString (resources [1]);

            if (method == "UpdateLabel") {
                var textbox = parameters ["textbox"];

                // Add some text to our string here so that we know something
                // happened on the native part of the round trip.
                var prepended = string.Format ("C# says: {0}", textbox);

                // Build some javascript using the C#-modified result
                var js = string.Format ("SetLabelText('{0}');", prepended);

                webView.EvaluateJavascript (js);
            }

            return false;
        }

        public override void ViewDidLoad ()
        {
            base.ViewDidLoad ();
            navBar = new UIToolbar();
            navBar.Frame = new CGRect (0, View.Frame.Height-40, View.Frame.Width, 40);
            navBar.TintColor = UIColor.Gray;

            items = new [] {
                new UIBarButtonItem (UIBarButtonSystemItem.Stop, (o, e) => {
                    webView.StopLoading ();
                    DismissViewController (true, null);
                }),
                new UIBarButtonItem (UIBarButtonSystemItem.FlexibleSpace, null),
                new UIBarButtonItem (UIBarButtonSystemItem.Refresh, (o, e) => webView.Reload ())
            };

            navBar.Items = items;
            webView = new UIWebView ();
            webView.Frame = new CGRect (0, 0, View.Frame.Width, View.Frame.Height-40);
            webView.ScalesPageToFit = true;
            webView.SizeToFit ();
            webView.LoadRequest (url);

            navBar.AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleTopMargin;
            webView.AutoresizingMask = UIViewAutoresizing.FlexibleDimensions;

            View.AddSubviews (new UIView[] { webView, navBar });
        }

		public override void ViewDidLoad ()
		{
			base.ViewDidLoad ();
			txt = new UITextView (new CoreGraphics.CGRect (100, 50, 200, 30));
			txt.BackgroundColor = UIColor.Gray;
			txt.TextColor = UIColor.White;
			txt.Text="https://auth.alipay.com/login/index.htm";

			UIButton btn = new UIButton (UIButtonType.System);
			btn.Frame = new CoreGraphics.CGRect (330, 50, 100, 30);
			btn.SetTitle ("GO", UIControlState.Normal);
			btn.TouchUpInside += Btn_TouchUpInside;

			UIButton btnHtmlString = new UIButton (UIButtonType.System);
			btnHtmlString.Frame = new CoreGraphics.CGRect (450, 50, 100, 30);
			btnHtmlString.SetTitle ("Html String", UIControlState.Normal);
			btnHtmlString.TouchUpInside += BtnHtmlString_TouchUpInside;

			UIButton btnFile = new UIButton (UIButtonType.System);
			btnFile.Frame = new CoreGraphics.CGRect (580, 50, 100, 30);
			btnFile.SetTitle ("Load File", UIControlState.Normal);
			btnFile.TouchUpInside += BtnFile_TouchUpInside;

			// Perform any additional setup after loading the view, typically from a nib.
			webView=new UIWebView(new CoreGraphics.CGRect(100,100,600,700));
			webView.ContentMode = UIViewContentMode.Center;
			
			this.View.AddSubviews (txt, btn, webView, btnHtmlString, btnFile);

		}

        public override void ViewDidLoad()
        {
            base.ViewDidLoad ();
            navBar = new UIToolbar ();
            navBar.Frame = new RectangleF (0, this.View.Frame.Height-130, this.View.Frame.Width, 40);

            items = new UIBarButtonItem [] {
                new UIBarButtonItem ("Back", UIBarButtonItemStyle.Bordered, (o, e) => { webView.GoBack (); }),
                new UIBarButtonItem ("Forward", UIBarButtonItemStyle.Bordered, (o, e) => { webView.GoForward (); }),
                new UIBarButtonItem (UIBarButtonSystemItem.FlexibleSpace, null),
                new UIBarButtonItem (UIBarButtonSystemItem.Refresh, (o, e) => { webView.Reload (); }),
                new UIBarButtonItem (UIBarButtonSystemItem.Stop, (o, e) => { webView.StopLoading (); })
            };
            navBar.Items = items;

            SetNavBarColor();

            webView = new UIWebView ();
            webView.Frame = new RectangleF (0, 0, this.View.Frame.Width, this.View.Frame.Height-130);

            webView.LoadStarted += delegate {
                UIApplication.SharedApplication.NetworkActivityIndicatorVisible = true;
            };
            webView.LoadFinished += delegate {
                UIApplication.SharedApplication.NetworkActivityIndicatorVisible = false;
            };

            webView.ScalesPageToFit = true;
            webView.SizeToFit ();
            webView.LoadRequest (url);

            this.View.AddSubview (webView);
            this.View.AddSubview (navBar);
        }

        public static void collectDevice()
        {
            string SessionId = Conekta.DeviceFingerPrint ();
            string PublicKey = Conekta.PublicKey;
            string html = "<!DOCTYPE html><html><head></head><body style=\"background: blue;\">";
            html += "<script type=\"text/javascript\" src=\"https://conektaapi.s3.amazonaws.com/v0.5.0/js/conekta.js\" data-conekta-public-key=\"" + PublicKey + "\" data-conekta-session-id=\"" + SessionId + "\"></script>";
            html += "</body></html>";

            string contentPath = Environment.CurrentDirectory;

            #if __IOS__
            UIWebView web = new UIWebView(new RectangleF(new PointF(0,0), new SizeF(0, 0)));
            web.ScalesPageToFit = true;
            web.LoadHtmlString(html, new NSUrl("https://conektaapi.s3.amazonaws.com/v0.5.0/js/conekta.js"));
            Conekta._delegate.View.AddSubview(web);
            #endif

            #if __ANDROID__
            WebView web_view = new WebView(Android.App.Application.Context);
            web_view.Settings.JavaScriptEnabled = true;
            web_view.Settings.AllowContentAccess = true;
            web_view.Settings.DomStorageEnabled = true;
            web_view.LoadDataWithBaseURL(Conekta.UriConektaJs, html, "text/html", "UTF-8", null);
            #endif
        }

        public override void LoadView()
        {
            base.LoadView ();

            bool isV7 = UIDevice.CurrentDevice.CheckSystemVersion (7, 0);

            View.BackgroundColor = UIColor.White;

            niceSegmentedCtrl = new SDSegmentedControl (new string [] { "Google", "Bing", "Yahoo" });

            if (isV7)
                niceSegmentedCtrl.Frame = new RectangleF (0, 10, 320, 44);
            else
                niceSegmentedCtrl.Frame = new RectangleF (0, 0, 320, 44);

            niceSegmentedCtrl.SetImage (UIImage.FromBundle ("google"), 0);
            niceSegmentedCtrl.SetImage (UIImage.FromBundle ("bicon"), 1);
            niceSegmentedCtrl.SetImage (UIImage.FromBundle ("yahoo"), 2);
            niceSegmentedCtrl.ValueChanged += HandleValueChanged;

            if (isV7)
                browser = new UIWebView (new RectangleF (0, 55, UIScreen.MainScreen.Bounds.Width, UIScreen.MainScreen.Bounds.Height - 64));
            else
                browser = new UIWebView (new RectangleF (0, 45, UIScreen.MainScreen.Bounds.Width, UIScreen.MainScreen.Bounds.Height - 64));

            browser.LoadRequest (new NSUrlRequest ( new NSUrl ("http://google.com")));
            browser.AutosizesSubviews = true;

            View.AddSubviews ( new UIView[] { niceSegmentedCtrl, browser });
        }

        bool HandleShouldStartLoad(UIWebView webView, NSUrlRequest request, UIWebViewNavigationType navigationType)
        {

            // If the URL is not our own custom scheme, just let the webView load the URL as usual
            var scheme = "app:";

            if (request.Url.Scheme != scheme.Replace(":", ""))
                return true;

            var resources = request.Url.ResourceSpecifier.Split('?');
            var method = resources[0];

            if (method == "QR")
            {
                var scanner = new ZXing.Mobile.MobileBarcodeScanner();
                scanner.Scan().ContinueWith(result => {
                    if (result != null){
                        var code = result.Result.Text;
                        this.InvokeOnMainThread(new NSAction(() => webView.LoadRequest(new NSUrlRequest(new NSUrl(MainUrl + "code?value=" + code)))));
                    }
                });
            }

            return false;
        }

		public override void ViewDidLoad()
		{
			base.ViewDidLoad();

			var webFrame = UIScreen.MainScreen.ApplicationFrame;

			_webView = new UIWebView(webFrame) {
				BackgroundColor = UIColor.White,
				ScalesPageToFit = true,
				AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight
			};

			_webView.LoadStarted += delegate {
				UIApplication.SharedApplication.NetworkActivityIndicatorVisible = true;
			};
			_webView.LoadFinished += delegate {
				UIApplication.SharedApplication.NetworkActivityIndicatorVisible = false;
			};
			_webView.LoadError += (webview, args) => {
				UIApplication.SharedApplication.NetworkActivityIndicatorVisible = false;
					_webView.LoadHtmlString (String.Format ("<html><center><font size=+5 color='red'>An error occurred:<br>{0}</font></center></html>", args.Error.LocalizedDescription), null);
			};

			View.AddSubview(_webView);

			_webView.LoadRequest(new NSUrlRequest(new NSUrl(ViewModel.Uri)));
		}

		public override bool FinishedLaunching (UIApplication application, NSDictionary options)
		{
			// Register our custom url protocol
			NSUrlProtocol.RegisterClass (new ObjCRuntime.Class (typeof (ImageProtocol)));

			controller = new UIViewController ();

			web = new UIWebView () {
				BackgroundColor = UIColor.White,
				ScalesPageToFit = true,
				AutoresizingMask = UIViewAutoresizing.All
			};
			if (UIDevice.CurrentDevice.CheckSystemVersion (7, 0))
				web.Frame = new CGRect (0, 20,
				                            UIScreen.MainScreen.Bounds.Width,
				                            UIScreen.MainScreen.Bounds.Height - 20);
			else
				web.Frame = UIScreen.MainScreen.Bounds;
			controller.NavigationItem.Title = "Test case";

			controller.View.AutosizesSubviews = true;
			controller.View.AddSubview (web);

			web.LoadRequest (NSUrlRequest.FromUrl (NSUrl.FromFilename (NSBundle.MainBundle.PathForResource ("test", "html"))));

			window = new UIWindow (UIScreen.MainScreen.Bounds);
			window.BackgroundColor = UIColor.White;
			window.MakeKeyAndVisible ();
			window.RootViewController = controller;

			return true;
		}

        public static BaseItemView Create (CGRect frame, NodeViewController nodeViewController, TreeNode node, string filePath, UIColor kleur)
        {
            var view = BaseItemView.Create(frame, nodeViewController, node, kleur);
            UIWebView webView = new UIWebView();

			string extension = Path.GetExtension (filePath);
			if (extension == ".odt") {
				string viewerPath = NSBundle.MainBundle.PathForResource ("over/viewer/index", "html");

				Uri fromUri = new Uri(viewerPath);
				Uri toUri = new Uri(filePath);
				Uri relativeUri = fromUri.MakeRelativeUri(toUri);
				String relativePath = Uri.UnescapeDataString(relativeUri.ToString());

				NSUrl finalUrl = new NSUrl ("#" + relativePath.Replace(" ", "%20"), new NSUrl(viewerPath, false));
				webView.LoadRequest(new NSUrlRequest(finalUrl));
				webView.ScalesPageToFit = true;
				view.ContentView = webView;

				return view;
			} else {
				NSUrl finalUrl = new NSUrl (filePath, false);
				webView.LoadRequest(new NSUrlRequest(finalUrl));
				webView.ScalesPageToFit = true;
				view.ContentView = webView;

				return view;
			}
		
        }

        public override void RowSelected(UITableView tableView, NSIndexPath indexPath)
        {
            var webViewController = new UIViewController ();
            var button = new UIBarButtonItem ("Back", UIBarButtonItemStyle.Plain, null);

            var custom = new UIButton (new RectangleF (0, 0, 26, 15));
            custom.SetBackgroundImage(UIImage.FromFile("./Assets/back.png"), UIControlState.Normal);
            custom.TouchUpInside += (sender, e) => webViewController.NavigationController.PopViewControllerAnimated (true);
            button.CustomView = custom;
            webViewController.NavigationItem.LeftBarButtonItem = button;

            var spinner = new UIActivityIndicatorView (UIActivityIndicatorViewStyle.WhiteLarge);
            spinner.Center = new PointF (160, 160);
            spinner.HidesWhenStopped = true;

            var webView = new UIWebView (tableView.Bounds);
            webView.Opaque = false;
            webView.BackgroundColor = UIColor.Black;
            webView.AddSubview (spinner);
            spinner.StartAnimating ();
            webView.LoadRequest (new NSUrlRequest (new NSUrl (string.Format(RequestConfig.Video, items[indexPath.Row].Id))));
            webViewController.View = webView;
            webViewController.Title = items[indexPath.Row].Category;
            webView.LoadFinished += (object sender, EventArgs e) => {
                spinner.StopAnimating();
            };

            ((MainTabController)UIApplication.SharedApplication.Delegate.Window.RootViewController).
                Video.InternalTopNavigation.PushViewController (webViewController,true);

            tableView.DeselectRow (indexPath, true);
        }