User-defined bookmarks in Xamarin

The UserBookmarkDialogFragment displays a list of user-defined bookmarks that can be used to navigate the document.

To show a user bookmark dialog fragment in your activity, create a new instance of UserBookmarkDialogFragment by calling newInstance() and setting the PDFViewCtrl:

fun showBookmarksDialog(fragmentManager: FragmentManager, pdfViewCtrl: PDFViewCtrl): BookmarksDialogFragment {
    var bookmarksDialog = pdftron.PDF.Dialog.BookmarksDialogFragment.NewInstance();
    bookmarksDialog.SetPdfViewCtrl(pdfViewCtrl);
    List<DialogFragmentTab> tabs = new List<DialogFragmentTab>();
    var userBookmarksDialog = new DialogFragmentTab(
        Java.Lang.Class.FromType(typeof(UserBookmarkDialogFragment)), BookmarksTabLayout.TagTabBookmark, null, "User Bookmarks", "Bookmarks Dialog", null);
    tabs.Add(userBookmarksDialog);
    bookmarksDialog.SetDialogFragmentTabs(tabs);
    bookmarksDialog.SetStyle((int)DialogFragmentStyle.NoTitle, Resource.Style.PDFTronAppTheme);
    bookmarksDialog.Show(fragmentManager, "bookmarks_dialog");
    return bookmarksDialog;
}

You can set a listener to be notified when a user bookmark is clicked by calling setUserBookmarkListener(UserBookmarkDialogListener).

If the document has write access, users can add new user bookmarks using floating action button. To specify whether the document is read-only call setReadOnly(boolean).

It is possible to import and export user bookmarks in JSON format. Typical use case is to save and load the user bookmarks JSON from a server.

The user bookmark JSON is a dictionary with page indices as keys and the bookmark title as the values. For example: {"0":"Bookmark 1","2":"Bookmark 2"}. Behaviour is undefined otherwise. Note that the page indices will be 0-indexed similar to XFDF.

// import
BookmarkManager.ImportPdfBookmarks(PDFViewCtrl, String)
// export
BookmarkManager.ExportPdfBookmarks(PDFDoc)