C# NSMutableDictionary.LowlevelSetObject方法代码示例

        internal NSDictionary ToDictionary()
        {
            int n = 0;
            if (Enhance.HasValue && Enhance.Value == false)
                n++;
            if (RedEye.HasValue && RedEye.Value == false)
                n++;
            if (ImageOrientation.HasValue)
                n++;
            if (Features != null && Features.Length != 0)
                n++;
            if (n == 0)
                return null;

            NSMutableDictionary dict = new NSMutableDictionary ();

            if (Enhance.HasValue && Enhance.Value == false){
                dict.LowlevelSetObject (CFBoolean.False.Handle, CIImage.AutoAdjustEnhanceKey.Handle);
            }
            if (RedEye.HasValue && RedEye.Value == false){
                dict.LowlevelSetObject (CFBoolean.False.Handle, CIImage.AutoAdjustRedEyeKey.Handle);
            }
            if (Features != null && Features.Length != 0){
                dict.LowlevelSetObject (NSArray.FromObjects (Features), CIImage.AutoAdjustFeaturesKey.Handle);
            }
            if (ImageOrientation.HasValue){
                dict.LowlevelSetObject (new NSNumber ((int)ImageOrientation.Value), CIImage.ImagePropertyOrientation.Handle);
            }
            #if false
            for (i = 0; i < n; i++){
                Console.WriteLine ("{0} {1}-{2}", i, keys [i], values [i]);
            }
            #endif
            return dict;
        }

        /// <summary>
        /// Creates an instance of the PDF viewer.
        /// </summary>
        /// <returns>
        /// The PDF viewer.
        /// </returns>
        /// <param name='sFilename'>
        /// Name of the PDF to open.
        /// </param>
        /// <param name='iInitialPage'>
        /// The initial pae number to go to.
        /// </param>
        /// <param name='bAllowsPrinting'>
        /// True to enable the print menu.
        /// </param>
        /// <param name='bAllowsExport'>
        /// True to allow exporting the document to other apps.
        /// </param>
        public static PSPDFViewController CreatePDFViewer(string sFilename, uint iInitialPage, bool bAllowsPrinting, bool bAllowsExport)
        {
            // Use PSPDFKit to view PDFs.
            var document = new PSPDFKitDocument(NSUrl.FromFilename(sFilename), bAllowsExport && bAllowsPrinting, bAllowsExport && bAllowsPrinting);

            var oClassDic = new NSMutableDictionary();
            //oClassDic [new NSString("PSPDFFileAnnotationProvider")] = new NSString("CustomFileAnnnotationsProvider");
            oClassDic.LowlevelSetObject(new Class(typeof(CustomFileAnnnotationsProvider)).Handle, new Class(typeof(PSPDFFileAnnotationProvider)).Handle);
            document.OverrideClassNames = oClassDic;

            // Read PDF properties from config.
            PSPDFPageTransition ePageTransition = PSPDFPageTransition.Curl;
            PSPDFPageMode ePageMode = PSPDFPageMode.Automatic;
            PSPDFScrollDirection eScrollDirection = PSPDFScrollDirection.Horizontal;

            var oPdfViewer = new PSPDFViewController(document)
            {
                ModalPresentationStyle = MonoTouch.UIKit.UIModalPresentationStyle.FullScreen,
                ModalTransitionStyle = MonoTouch.UIKit.UIModalTransitionStyle.CoverVertical,
                LinkAction = PSPDFLinkAction.OpenSafari,
                PageTransition = ePageTransition,
                PageMode = ePageMode,
                ScrollDirection = eScrollDirection,
                RenderAnnotationTypes = PSPDFAnnotationType.Highlight | PSPDFAnnotationType.Ink | PSPDFAnnotationType.Note | PSPDFAnnotationType.Text | PSPDFAnnotationType.Link,
                Delegate = new PSPDFKitViewControllerDelegate()
            };

            var oControllerClassDic = new NSMutableDictionary();
            oControllerClassDic.LowlevelSetObject(new Class(typeof(CustomNoteAnnotationController)).Handle, new Class(typeof(PSPDFNoteAnnotationController)).Handle);
            oControllerClassDic.LowlevelSetObject(new Class(typeof(CustomLinkAnnotationView)).Handle, new Class(typeof(PSPDFLinkAnnotationView)).Handle);
            oPdfViewer.OverrideClassNames = oControllerClassDic;

            List<PSPDFBarButtonItem> aButtons = new List<PSPDFBarButtonItem>()
            {
                oPdfViewer.AnnotationButtonItem,
                oPdfViewer.BookmarkButtonItem,
                oPdfViewer.SearchButtonItem,
                oPdfViewer.OutlineButtonItem
            };

            if(bAllowsPrinting && bAllowsExport)
            {
                //aButtons.Add(this.oPdfViewer.EmailButtonItem);
                aButtons.Add(oPdfViewer.PrintButtonItem);
                aButtons.Add(oPdfViewer.OpenInButtonItem);
            }

            aButtons.Add(oPdfViewer.ViewModeButtonItem);

            oPdfViewer.RightBarButtonItems = aButtons.ToArray();
            aButtons = null;

            oPdfViewer.SetPageAnimated(iInitialPage, false);

            return oPdfViewer;
        }

		internal NSMutableDictionary ToDictionary ()
		{
			Init ();
			var dict = new NSMutableDictionary ();

			if (LossyCompressionQuality.HasValue)
				dict.LowlevelSetObject (new NSNumber (LossyCompressionQuality.Value), kLossyCompressionQuality);
			if (DestinationBackgroundColor != null)
				dict.LowlevelSetObject (DestinationBackgroundColor.Handle, kBackgroundColor);

			return dict;
		}

		internal NSDictionary ToDictionary ()
		{
			if (OutputColorSpace == null && WorkingColorSpace == null && UseSoftwareRenderer == false)
				return null;
			var ret = new NSMutableDictionary ();
			if (OutputColorSpace != null)
				ret.LowlevelSetObject (OutputColorSpace.Handle, CIContext.OutputColorSpace.Handle);
			if (WorkingColorSpace != null)
				ret.LowlevelSetObject (WorkingColorSpace.Handle, CIContext.WorkingColorSpace.Handle);
			if (UseSoftwareRenderer)
				ret.LowlevelSetObject (CFBoolean.True.Handle, CIContext.UseSoftwareRenderer.Handle);

			return ret;
		}

		internal virtual NSMutableDictionary ToDictionary ()
		{
			Init ();
			
			var dict = new NSMutableDictionary ();
			
			if (BestGuessTypeIdentifier != null)
				dict.LowlevelSetObject (new NSString (BestGuessTypeIdentifier), kTypeIdentifierHint);
			if (!ShouldCache)
				dict.LowlevelSetObject (CFBoolean.False.Handle, kShouldCache);
			if (ShouldAllowFloat)
				dict.LowlevelSetObject (CFBoolean.True.Handle, kShouldAllowFloat);

			return dict;
		}

		public CMMemoryPool (TimeSpan ageOutPeriod)
		{
			using (var dict = new NSMutableDictionary ()) {
				dict.LowlevelSetObject (AgeOutPeriodSelector, new NSNumber (ageOutPeriod.TotalSeconds).Handle);
				handle = CMMemoryPoolCreate (dict.Handle);
			}
		}

        public static CGImage Create(NSUrl url, SizeF maxThumbnailSize, float scaleFactor = 1, bool iconMode = false)
        {
            NSMutableDictionary dictionary = null;

            if (scaleFactor != 1 && iconMode != false) {
                dictionary = new NSMutableDictionary ();
                dictionary.LowlevelSetObject ((NSNumber) scaleFactor, OptionScaleFactorKey.Handle);
                dictionary.LowlevelSetObject (iconMode ? CFBoolean.True.Handle : CFBoolean.False.Handle, OptionIconModeKey.Handle);
            }

            var handle = QLThumbnailImageCreate (IntPtr.Zero, url.Handle, maxThumbnailSize, dictionary == null ? IntPtr.Zero : dictionary.Handle);
            GC.KeepAlive (dictionary);
            if (handle != null)
                return new CGImage (handle, true);

            return null;
        }

		// On load, construct the CIRawFilter
		public override void ViewDidLoad ()
		{
			base.ViewDidLoad ();

			var asset = Asset;
			if (asset == null)
				return;

			// Setup options to request original image.
			var options = new PHImageRequestOptions {
				Version = PHImageRequestOptionsVersion.Original,
				Synchronous = true
			};

			// Request the image data and UTI type for the image.
			PHImageManager.DefaultManager.RequestImageData (asset, options, (imageData, dataUTI, _, __) => {
				if (imageData == null || dataUTI == null)
					return;

				// Create a CIRawFilter from original image data.
				// UTI type is passed in to provide the CIRawFilter with a hint about the UTI type of the Raw file.
				//var rawOptions = [String (kCGImageSourceTypeIdentifierHint) : dataUTI ]
				var rawOptions = new NSMutableDictionary ();
				var imageIOLibrary = Dlfcn.dlopen ("/System/Library/Frameworks/ImageIO.framework/ImageIO", 0);
				var key = Dlfcn.GetIntPtr (imageIOLibrary, "kCGImageSourceTypeIdentifierHint");
				rawOptions.LowlevelSetObject (dataUTI, key);

				ciRawFilter = CIFilter.CreateRawFilter (imageData, rawOptions);
				if (ciRawFilter == null)
					return;

				// Get the native size of the image produced by the CIRawFilter.
				var sizeValue = ciRawFilter.ValueForKey (Keys.kCIOutputNativeSizeKey) as CIVector;
				if (sizeValue != null)
					imageNativeSize = new CGSize (sizeValue.X, sizeValue.Y);

				// Record the original value of the temperature, and setup the editing slider.
				var tempValue = (NSNumber)ciRawFilter.ValueForKey (Keys.kCIInputNeutralTemperatureKey);
				if (tempValue != null) {
					originalTemp = tempValue.FloatValue;
					TempSlider.SetValue (tempValue.FloatValue, animated: false);
				}

				// Record the original value of the tint, and setup the editing slider.
				var tintValue = (NSNumber)ciRawFilter.ValueForKey (Keys.kCIInputNeutralTintKey);
				if (tintValue != null) {
					originalTint = tintValue.FloatValue;
					TintSlider.SetValue (tintValue.FloatValue, animated: false);
				}
			});

			// Create EAGL context used to render the CIImage produced by the CIRawFilter to display.
			ImageView.Context = new EAGLContext (EAGLRenderingAPI.OpenGLES3);
			ciContext = CIContext.FromContext (ImageView.Context, new CIContextOptions { CIImageFormat = CIImage.FormatRGBAh });
		}

		static void Add (NSMutableDictionary dict, IntPtr key, RectangleF? val)
		{
			if (!val.HasValue)
				return;
			NSData data;
			unsafe {
				RectangleF f = val.Value;
				RectangleF *pf = &f;
				data = NSData.FromBytes ((IntPtr) pf, 16);
			}
			dict.LowlevelSetObject (data, key);
		}

        static NSNumber SetLimit(NSMutableDictionary dict, int max)
        {
            NSNumber n = null;
            IntPtr val;
            if (max == -1)
                val = SecMatchLimit.MatchLimitAll;
            else if (max == 1)
                val = SecMatchLimit.MatchLimitOne;
            else {
                n = NSNumber.FromInt32 (max);
                val = n.Handle;
            }

            dict.LowlevelSetObject (val, SecItem.MatchLimit);
            return n;
        }

		public KSCatalogViewController () : base (UITableViewStyle.Grouped, null)
		{
			NSUrl samplesURL = NSBundle.MainBundle.ResourceUrl.Append ("Samples", true);
			NSUrl hackerMagURL = samplesURL.Append(HackerMagazineExample, false);
			NSUrl annotTestURL = samplesURL.Append(AnnotTestExample, false);


			this.Root = new RootElement ("KSCatalogViewController")
			{
				new Section ("Full example apps", "Can be used as a template for your own apps.")
				{
					// PDF playground.
					new StringElement ("PSPDFViewController playground", () =>
					{
						var doc = new PSPDFDocument(hackerMagURL);
						var controller = new KSKioskViewController(doc);

						controller.StatusBarStyleSetting = PSPDFStatusBarStyleSetting.Default;
						this.NavigationController.PushViewController(controller, true);
					}),
				},

				new Section("Customizing")
				{
					new StringElement("Combine search, TOC and bookmarks", () =>
					{
						var doc = new PSPDFDocument(hackerMagURL);
						var controller = new PSPDFViewController(doc);
						var tabBarController = new KSCombinedTabBarController(controller, doc);

						var tabBarBtn = new KSBarButtonItem(controller)
						{
							Title = "Show!",
							Style = UIBarButtonItemStyle.Bordered
						};
						tabBarBtn.Clicked += (object sender, EventArgs e) => controller.PresentViewControllerModalOrPopover(tabBarController, true, false, true, tabBarBtn, null);

						controller.RightBarButtonItems = new PSPDFBarButtonItem[] { controller.BookmarkButtonItem, tabBarBtn };

						this.NavigationController.PushViewController(controller, true);
					})
				},

				new Section ("Subclassing")
				{
					// Subclassing PSPDFAnnotationToolbar
					new StringElement ("Subclass annotation toolbar and drawing toolbar", () =>
					{
						var doc = new PSPDFDocument(hackerMagURL);
						var controller = new PSPDFViewController(doc);

						var barButtons = new List<PSPDFBarButtonItem>(controller.RightBarButtonItems);
						barButtons.Add(controller.AnnotationButtonItem);
						controller.RightBarButtonItems = barButtons.ToArray();
						
						var classDic = new NSMutableDictionary();
						classDic.LowlevelSetObject( new Class(typeof(KSAnnotationToolbar)).Handle, new Class(typeof(PSPDFAnnotationToolbar)).Handle);
						controller.OverrideClassNames = classDic;
						
						this.NavigationController.PushViewController(controller, true);
					}),

					// Demonstrates always visible vertical toolbar.
					new StringElement ("Vertical always-visible annotation bar", () =>
					{
						var doc = new PSPDFDocument(hackerMagURL);
						var controller = new KSExampleAnnotationViewController(doc);

						this.NavigationController.PushViewController(controller, true);
					}),

					// Tests potential binding issue when subclassing PSPDFViewController
					new StringElement ("PSPDFViewController with NULL document", () =>
					{
						var doc = new PSPDFDocument(hackerMagURL);
						var controller = new KSNoDocumentPDFViewController();
						controller.Document = doc;
						this.NavigationController.PushViewController(controller, true);
					}),

					// Demonstrates capturing bookmark set/remove.
					new StringElement ("Capture bookmarks", () =>
					{
						var doc = new PSPDFDocument(hackerMagURL);

						// Create an entry for overriding the default bookmark parser.
						var classDic = new NSMutableDictionary();
						classDic.LowlevelSetObject( new Class(typeof(KSBookmarkParser)).Handle, new Class(typeof(PSPDFBookmarkParser)).Handle);
						doc.OverrideClassNames = classDic;

						var controller = new PSPDFViewController(doc);
						controller.RightBarButtonItems = new PSPDFBarButtonItem[]
						{
							controller.BookmarkButtonItem,
							controller.SearchButtonItem,
							controller.OutlineButtonItem,
							controller.ViewModeButtonItem
						};
						this.NavigationController.PushViewController(controller, true);
					}),
//.........这里部分代码省略.........

        public DVCMenu()
            : base(UITableViewStyle.Grouped, null)
        {
            Root = new RootElement ("PSPDFKit") {
                new Section (PSPDFKitGlobal.VersionString){
                    new StringElement ("PSPDFViewController playground", () => {
                        var pdfViewer = new PlayGroundViewController (NSUrl.FromFilename (HackerMonthlyFile));
                        NavigationController.PushViewController (pdfViewer, true);
                    })
                },
                new Section ("Annotations"){
                    new StringElement ("Annotations From Code", () => {
                        // we use a NSData document here but it'll work even better with a file-based variant.
                        NSError err;
                        var documentData = NSData.FromUrl (NSUrl.FromFilename (HackerMonthlyFile), NSDataReadingOptions.Mapped, out err);
                        var pdfViewer = new AnnotationsFromCodeViewController (documentData);
                        NavigationController.PushViewController (pdfViewer, true);
                    })
                },
                new Section ("Interface"){
                    new StringElement ("Dropbox-like interface", () => {
                        var document = new PSPDFDocument (NSUrl.FromFilename (HackerMonthlyFile));
                        var pdfViewer = new DropboxPDFViewController (document);
                        NavigationController.PushViewController (pdfViewer, true);
                    })
                },
                new Section ("Password / Security", "Password is: test123") {
                    new StringElement ("Password Preset", () => {
                        var document = new PSPDFDocument (NSUrl.FromFilename (ProtectedFile));
                        document.UnlockWithPassword ("test123");
                        var pdfViewer = new PSPDFViewController (document);
                        NavigationController.PushViewController (pdfViewer, true);
                    }),
                    new StringElement ("Password Not Preset", () => {
                        var document = new PSPDFDocument (NSUrl.FromFilename (ProtectedFile));
                        var pdfViewer = new PSPDFViewController (document);
                        NavigationController.PushViewController (pdfViewer, true);
                    }),
                    new StringElement ("Create Password Protected PDF", () => {
                        var document = new PSPDFDocument (NSUrl.FromFilename (HackerMonthlyFile));
                        var status = PSPDFStatusHUDItem.GetProgressItem ("Preparing");
                        status.Push (true);
                        // Create temp file and password
                        var tempPdf = NSUrl.FromFilename (Path.Combine (Path.GetTempPath (), Guid.NewGuid ().ToString () + ".pdf"));
                        var password = new NSString ("test123");

                        // Lets create the dictionary options needed by the PSPDFProcesor
                        // With password protected pages, PSPDFProcessor can only add link annotations.
                        // We use a helper class to access the CGPDFContextKeys used by the dictionary
                        var processorOptions = new NSMutableDictionary ();
                        processorOptions.LowlevelSetObject (password, Helper.CGPDFContextUserPassword);
                        processorOptions.LowlevelSetObject (password, Helper.CGPDFContextOwnerPassword);
                        processorOptions.LowlevelSetObject (NSNumber.FromInt32 (128), Helper.CGPDFContextEncryptionKeyLength);
                        processorOptions.LowlevelSetObject (NSNumber.FromBoolean (true), PSPDFProcessorOptionKeys.AnnotationAsDictionary.Handle);
                        processorOptions.LowlevelSetObject (NSNumber.FromObject (PSPDFAnnotationType.Link), PSPDFProcessorOptionKeys.AnnotationTypes.Handle);

                        // We create the page range we want to include in our pdf
                        var pageRange = new [] { NSIndexSet.FromNSRange (new NSRange (0, (int)document.PageCount)) };
                        // We start a new task so this executes on a separated thread since it is a hevy task and we don't want to block the UI
                        Task.Factory.StartNew (()=> {
                            NSError err;
                            PSPDFProcessor.DefaultProcessor.GeneratePDFFromDocument (document: document,
                                                                                     pageRange: pageRange,
                                                                                     fileURL: tempPdf,
                                                                                     options: (NSDictionary) processorOptions,
                                progressHandler: (currentPage, numberOfProcessedPages, totalPages) => InvokeOnMainThread (()=> status.Progress = ((float)numberOfProcessedPages / (float)totalPages)),
                                                                                     error: out err);
                        }).ContinueWith ((task) => {
                            InvokeOnMainThread (()=> {
                                status.Pop (true);
                                var docToShow = new PSPDFDocument (tempPdf);
                                var pdfViewer = new PSPDFViewController (docToShow);
                                NavigationController.PushViewController (pdfViewer, true);
                            });
                        });
                    }),
                },
                new Section ("Subclassing", "Examples how to subclass PSPDFKit."){
                    new StringElement ("Annotation Link Editor", () => {
                        var document = new PSPDFDocument (NSUrl.FromFilename (HackerMonthlyFile));
                        // Need to cast to solve ambiguity between NSObject and string ctor
                        document.EditableAnnotationTypes = new NSOrderedSet (
                            (NSObject) PSPDFAnnotationString.Link, // Important!!
                            (NSObject) PSPDFAnnotationString.Highlight,
                            (NSObject) PSPDFAnnotationString.Underline,
                            (NSObject) PSPDFAnnotationString.Squiggly,
                            (NSObject) PSPDFAnnotationString.StrikeOut,
                            (NSObject) PSPDFAnnotationString.Note,
                            (NSObject) PSPDFAnnotationString.FreeText,
                            (NSObject) PSPDFAnnotationString.Ink,
                            (NSObject) PSPDFAnnotationString.Square,
                            (NSObject) PSPDFAnnotationString.Circle,
                            (NSObject) PSPDFAnnotationString.Stamp );

                        var pdfViewer = new LinkEditorViewController (document);
                        NavigationController.PushViewController (pdfViewer, true);
                    }),
                    new StringElement ("Capture Bookmarks", () => {
                        var document = new PSPDFDocument (NSUrl.FromFilename (HackerMonthlyFile));
                        document.OverrideClass (new Class (typeof (PSPDFBookmarkParser)), new Class (typeof (CustomBookmarkParser)));
//.........这里部分代码省略.........

        public KSCatalogViewController()
            : base(UITableViewStyle.Grouped, null)
        {
            PSPDFKitGlobal.LogLevel = PSPDFLogLevel.Verbose;

            // Add some custom localization to ensure the bindings work.
            PSPDFKitGlobal.Localize("en", new NameValueCollection
            {
                {"Outline", "File Content"},
                {"Bookmarks", "Remember"}
            });

            // Call cache method to ensure the bindings for the cache work.
            var oPdfCache = PSPDFCache.SharedCache;
            oPdfCache.ClearCache ( );

            PSPDFKitGlobal.LogLevel = PSPDFLogLevel.Info;

            NSUrl samplesURL = NSBundle.MainBundle.ResourceUrl.Append ("Samples", true);
            NSUrl hackerMagURL = samplesURL.Append(HackerMagazineExample, false);
            NSUrl annotTestURL = samplesURL.Append(AnnotTestExample, false);

            this.Root = new RootElement ("KSCatalogViewController")
            {
                new Section ("Full example apps", "Can be used as a template for your own apps.")
                {
                    // PDF playground.
                    new StringElement ("PSPDFViewController playground", () =>
                    {
                        var doc = new PSPDFDocument(hackerMagURL);
                        var kioskController = new KSKioskViewController(doc);

                        kioskController.StatusBarStyleSetting = PSPDFStatusBarStyleSetting.Default;
                        this.NavigationController.PushViewController(kioskController, true);
                    }),
                },

                new Section("Customizing")
                {
                    // Combines various view controllers in a tab bar controller.
                    new StringElement("Combine search, TOC and bookmarks", () =>
                    {
                        var doc = new PSPDFDocument(hackerMagURL);

                        // Don't use PSPDFVieController directly but a subclass that allows attaching to ViewDidDisappear in order to clear
                        // the RightBarButtonItems property. Otherwise the tabBarBtn would keep a reference to the PSPDFViewController and the instances
                        // would never be freed.

                        //var controller = new PSPDFViewController(doc);
                        var controller = new KSKioskViewController(doc);
                        //controller.ViewDisappeared += (sender, args) => controller.RightBarButtonItems = new PSPDFBarButtonItem[0];

                        var tabBarController = new KSCombinedTabBarController(controller, doc);

                        var tabBarBtn = new KSBarButtonItem(controller)
                        {
                            Title = "UITabBarController",
                            Style = UIBarButtonItemStyle.Bordered
                        };
                        tabBarBtn.Clicked += (object sender, EventArgs e) => controller.PresentViewControllerModalOrPopover(tabBarController, true, false, true, tabBarBtn, null);

                        controller.RightBarButtonItems = new PSPDFBarButtonItem[] { controller.AnnotationButtonItem, controller.BookmarkButtonItem, tabBarBtn };

                        var classDic = new NSMutableDictionary();
                        classDic.LowlevelSetObject( new Class(typeof(KSInkAnnotation)).Handle, new Class(typeof(PSPDFInkAnnotation)).Handle);
                        classDic.LowlevelSetObject( new Class(typeof(KSNoteAnnotation)).Handle, new Class(typeof(PSPDFNoteAnnotation)).Handle);
                        classDic.LowlevelSetObject( new Class(typeof(KSHighlightAnnotation)).Handle, new Class(typeof(PSPDFHighlightAnnotation)).Handle);
                        doc.OverrideClassNames = classDic;

                        this.NavigationController.PushViewController(controller, true);
                    }),

                    // Shows an alert when tapping a link annotation.
                    new StringElement("Custom reaction on annotation links", () =>
                    {
                        var doc = new PSPDFDocument(hackerMagURL);
                        var controller = new PSPDFViewController(doc);
                        controller.Delegate = new KSCatchTappingLinkDelegate();
                        // There are link annotations on page 2.
                        controller.SetPageAnimated(1, false);
                        this.NavigationController.PushViewController(controller, true);
                    })
                },

                new Section ("Subclassing")
                {
                    // Subclassing PSPDFAnnotationToolbar
                    new StringElement ("Subclass annotation toolbar and drawing toolbar", () =>
                    {
                        var doc = new PSPDFDocument(hackerMagURL);
                        var controller = new PSPDFViewController(doc);

                        var barButtons = new List<PSPDFBarButtonItem>(controller.RightBarButtonItems);
                        barButtons.Add(controller.AnnotationButtonItem);
                        controller.RightBarButtonItems = barButtons.ToArray();

                        var classDic = new NSMutableDictionary();
                        classDic.LowlevelSetObject( new Class(typeof(KSAnnotationToolbar)).Handle, new Class(typeof(PSPDFAnnotationToolbar)).Handle);
                        controller.OverrideClassNames = classDic;

//.........这里部分代码省略.........

        public KSCatalogViewController()
            : base(UITableViewStyle.Grouped, null)
        {
            PSPDFKitGlobal.LogLevel = PSPDFLogLevel.Verbose;

            // Add some custom localization to ensure the bindings work.
            PSPDFKitGlobal.Localize("en", new NameValueCollection
            {
                {"Outline", "File Content"},
                {"Bookmarks", "Remember"}
            });

            // Call cache method to ensure the bindings for the cache work.
            var oPdfCache = PSPDFCache.SharedCache;
            oPdfCache.ClearCache ( );

            PSPDFKitGlobal.LogLevel = PSPDFLogLevel.Info;

            NSUrl samplesURL = NSBundle.MainBundle.ResourceUrl.Append ("Samples", true);
            NSUrl hackerMagURL = samplesURL.Append(HackerMagazineExample, false);
            NSUrl aesEncryptedURL = samplesURL.Append(AesEncryptedDoc, false);

            this.Root = new RootElement ("KSCatalogViewController")
            {
                new Section ("Full example apps", "Can be used as a template for your own apps.")
                {
                    // PDF playground.
                    new StringElement ("PSPDFViewController playground", () =>
                    {
                        var doc = new PSPDFDocument(hackerMagURL);
                        var kioskController = new KSKioskViewController(doc);

                        kioskController.StatusBarStyleSetting = PSPDFStatusBarStyleSetting.Default;
                        this.NavigationController.PushViewController(kioskController, true);
                    }),
                },

                new Section("Customizing")
                {
                    // Combines various view controllers in a tab bar controller.
                    new StringElement("Combine search, TOC and bookmarks", () =>
                    {
                        var doc = new PSPDFDocument(hackerMagURL);

                        // Don't use PSPDFVieController directly but a subclass that allows attaching to ViewDidDisappear in order to clear
                        // the RightBarButtonItems property. Otherwise the tabBarBtn would keep a reference to the PSPDFViewController and the instances
                        // would never be freed.

                        //var controller = new PSPDFViewController(doc);
                        var controller = new KSKioskViewController(doc);
                        //controller.ViewDisappeared += (sender, args) => controller.RightBarButtonItems = new PSPDFBarButtonItem[0];

                        var tabBarController = new KSCombinedTabBarController(controller, doc);

                        var tabBarBtn = new KSBarButtonItem(controller)
                        {
                            Title = "UITabBarController",
                            Style = UIBarButtonItemStyle.Bordered
                        };
                        tabBarBtn.Clicked += (object sender, EventArgs e) => controller.PresentViewControllerModalOrPopover(tabBarController, true, false, true, tabBarBtn, null);

                        controller.RightBarButtonItems = new PSPDFBarButtonItem[] { controller.AnnotationButtonItem, controller.BookmarkButtonItem, tabBarBtn };

                        var classDic = new NSMutableDictionary();
                        classDic.LowlevelSetObject( new Class(typeof(KSInkAnnotation)).Handle, new Class(typeof(PSPDFInkAnnotation)).Handle);
                        classDic.LowlevelSetObject( new Class(typeof(KSNoteAnnotation)).Handle, new Class(typeof(PSPDFNoteAnnotation)).Handle);
                        classDic.LowlevelSetObject( new Class(typeof(KSHighlightAnnotation)).Handle, new Class(typeof(PSPDFHighlightAnnotation)).Handle);
                        doc.OverrideClassNames = classDic;

                        this.NavigationController.PushViewController(controller, true);
                    }),

                    // Shows an alert when tapping a link annotation.
                    new StringElement("Custom reaction on annotation links", () =>
                    {
                        var doc = new PSPDFDocument(hackerMagURL);
                        var controller = new PSPDFViewController(doc);
                        controller.Delegate = new KSCatchTappingLinkDelegate();
                        // There are link annotations on page 2.
                        controller.SetPageAnimated(1, false);
                        this.NavigationController.PushViewController(controller, true);
                    })
                },

                new Section ("Subclassing")
                {
                    // Subclassing PSPDFAnnotationToolbar
                    new StringElement ("Subclass annotation toolbar and drawing toolbar", () =>
                    {
                        var doc = new PSPDFDocument(hackerMagURL);
                        var controller = new PSPDFViewController(doc);

                        var barButtons = new List<PSPDFBarButtonItem>(controller.RightBarButtonItems);
                        barButtons.Add(controller.AnnotationButtonItem);
                        controller.RightBarButtonItems = barButtons.ToArray();

                        var classDic = new NSMutableDictionary();
                        classDic.LowlevelSetObject( new Class(typeof(KSAnnotationToolbar)).Handle, new Class(typeof(PSPDFAnnotationToolbar)).Handle);
                        controller.OverrideClassNames = classDic;

//.........这里部分代码省略.........