Document view controller in Xamarin

The PTDocumentViewController shows a PDF viewer and annotator complete with controls such as an annotation toolbar, page layout controls, bookmarks, thumbnail viewer, etc. All of its component pieces are part of the Tools framework, and this class packages them into one easy to use view controller.

For a version of PTDocumentViewController that supports multiple documents, see PTTabbedDocumentViewController.

The document viewer includes a toolbar at the top and quick scroller at the bottom.

The document view control is part of the Tools library, so make sure you have added the Tools library to your project.

The following shows how to create a document viewer, set the document to display, and present it on screen.

1PTDocumentViewController documentController = new PTDocumentViewController();
2UINavigationController navigationController = new UINavigationController(documentController);
3NSUrl fileURL = NSBundle.MainBundle.GetUrlForResource("sample", "pdf");
4
5documentController.OpenDocumentWithURL(fileURL);
6
7documentController.NavigationItem.LeftBarButtonItem = new UIBarButtonItem(UIBarButtonSystemItem.Done, (sender, e) => {
8    documentController.DismissViewController(true, null);
9});
10this.PresentViewController(navigationController, true, null);

openDocumentWithURL: is an asynchronous method. To respond to errors or other events that occur during opening, assign an object that conforms to the PTDocumentViewControllerDelegate to the PTDocumentViewController's delegate property and implement the following optional methods:

• documentViewControllerDidOpenDocument: to respond to successfully opening a document.
• documentViewController:didFailToOpenDocumentWithError: to respond to an error during document opening.
• documentViewController:destinationURLForDocumentAtURL: to control where remote or converted documents are saved.