Implement pageFlip to PdfViewerParams

[reddeath1]

Hello @espresso3389, thanks for all the help you have shared with us.

If possible, could you kindly demonstrate how I can use the pageFlip plugin on top of PdfViewer? I have tried all the ways that I can think of, with no success. Since it was possible to achieve such stunning presentations using PdfViewerParams -> layoutPages, I believe it is also possible to use pageFlip (https://pub.dev/packages/page_flip) for this purpose. However, where I failed to implement it is that 'layoutPages' expects PdfPageLayout, and no other widget seems to work. If you could shed some light on this, I would be very thankful.

`
PdfViewerParams(
                                layoutPages: (pages, params) {
                                  final height = pages.fold(
                                          0.0,
                                          (prev, page) =>
                                              max(prev, page.height)) +
                                      params.margin * 2;
                                  final pageLayouts = <Rect>[];
                                  double x = params.margin;
                                  for (var page in pages) {
                                    pageLayouts.add(
                                      Rect.fromLTWH(
                                        x,
                                        (height - page.height) /
                                            2, // center vertically
                                        page.width,
                                        page.height,
                                      ),
                                    );
                                    x += page.width + params.margin;
                                  }
                                  return rx.PdfPageLayout(
                                    pageLayouts: pageLayouts,
                                    documentSize: ui.Size(x, height),
                                  );
                                },`

[espresso3389]

Technically, it's impossible to introduce such page flipping feature on PdfViewer. it internally does not use any widgets.
So, anyway I want to close the issue.
We should think some another way to implement page flipping on pdfrx.

[espresso3389]

#84 for Page flipping feature

[reddeath1]

Thank you for opening up its independent thread. I will follow it closely. Also, if possible, prioritizing it would be very helpful to me since I am developing a bookshelf app and want my users to experience such an effect.