Section:

Annoatation list

Annoations can be viewed as a list in this UI component

View annotations as list in Xamarin.iOS

This tutorial only applies to Xamarin.iOS. See Xamarin.Android equivalent here .

The PTAnnotationViewController class shows a list of all annotations in a document being viewed by a PTPDFViewCtrl. The list contains any comments that have been added to the annotations.

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

Show an annotation view controller

To create a new annotation view controller instance and display it from another view controller, supply a PTPDFViewCtrl instance to the PTAnnotationViewController designated initializer:

C#

1var annotationViewController = new pdftron.PDF.Controls.PTAnnotationViewController (mPdfViewCtrl);
2annotationViewController.AnnotationViewControllerAnnotationSelected += (object sender, AnnotationViewControllerAnnotationSelectedEventArgs e) => {
3    // perform custom action
4    this.DismissViewController (true, null);
5};
6annotationViewController.AnnotationViewControllerDidCancel += (object sender, EventArgs e) => {
7    this.DismissViewController (true, null);
8};
9
10var navigationController = new UINavigationController (annotationViewController);
11if (UserInterfaceIdiomIsPad)
12{
13    navigationController.ModalPresentationStyle = UIModalPresentationStyle.Popover;
14    navigationController.PopoverPresentationController.BarButtonItem = annotationListButton;
15}
16
17this.PresentViewController (navigationController, true, null);

The annotation view controller must be pushed onto a navigation controller's stack before being shown.

Presenting on iPads:

The annotation view controller is designed to be presented in a popover on iPads. To do so, you must provide the PTAnnotationViewController's PopoverPresentationController with either:

OR

as in the example above.

You can set a delegate to be notified by the annotation view controller when annotations are selected with the PTAnnotationViewControllerDelegate protocol. (See the CompleteReader sample for usage of the PTAnnotationViewController.)

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