Fix PdfPreview page format and orientation updates

@@ -5,6 +5,7 @@
 - Update pdfium version to 4861
 - Update pdfium version to 4861
 - Fix crash when Android load a PDF file which had password
 - Fix crash when Android load a PDF file which had password
 - Fix parsing TTF fonts with zero-length glyphs
 - Fix parsing TTF fonts with zero-length glyphs
+- Fix PdfPreview page format and orientation updates
 
 
 ## 5.7.2
 ## 5.7.2
 
 

@@ -315,21 +315,24 @@ class _PdfPreviewState extends State<PdfPreview> {
         mainAxisAlignment: MainAxisAlignment.center,
         mainAxisAlignment: MainAxisAlignment.center,
         children: <Widget>[
         children: <Widget>[
           Expanded(
           Expanded(
-            child: PdfPreviewCustom(
+            child: Builder(builder: (context) {
+              final controller = PdfPreviewController.listen(context);
+              return PdfPreviewCustom(
                 key: previewWidget,
                 key: previewWidget,
-              build: widget.build,
+                build: controller.buildDocument,
                 loadingWidget: widget.loadingWidget,
                 loadingWidget: widget.loadingWidget,
                 maxPageWidth: widget.maxPageWidth,
                 maxPageWidth: widget.maxPageWidth,
                 onError: widget.onError,
                 onError: widget.onError,
                 padding: widget.padding,
                 padding: widget.padding,
-              pageFormat: previewData.pageFormat,
+                pageFormat: controller.pageFormat,
                 pages: widget.pages,
                 pages: widget.pages,
                 pdfPreviewPageDecoration: widget.pdfPreviewPageDecoration,
                 pdfPreviewPageDecoration: widget.pdfPreviewPageDecoration,
                 previewPageMargin: widget.previewPageMargin,
                 previewPageMargin: widget.previewPageMargin,
                 scrollViewDecoration: widget.scrollViewDecoration,
                 scrollViewDecoration: widget.scrollViewDecoration,
                 shouldRepaint: widget.shouldRepaint,
                 shouldRepaint: widget.shouldRepaint,
                 dpi: widget.dpi,
                 dpi: widget.dpi,
-            ),
+              );
+            }),
           ),
           ),
           if (actions.isNotEmpty && widget.useActions)
           if (actions.isNotEmpty && widget.useActions)
             IconTheme.merge(
             IconTheme.merge(