Fix raster pages on Android and Web

@@ -3,6 +3,7 @@
 ## 3.7.2
 
 - Fix Printing on WEB
+- Fix raster pages on Android and Web
 
 ## 3.7.1
 

@@ -7,6 +7,7 @@ import android.print.PrintAttributes;
 import androidx.annotation.NonNull;
 import androidx.annotation.RequiresApi;
 
+import java.util.ArrayList;
 import java.util.HashMap;
 
 import io.flutter.plugin.common.MethodCall;
@@ -89,7 +90,7 @@ public class PrintingHandler implements MethodChannel.MethodCallHandler {
                 }
                 case "rasterPdf": {
                     final byte[] document = call.argument("doc");
-                    final int[] pages = call.argument("pages");
+                    final ArrayList<Integer> pages = call.argument("pages");
                     Double scale = call.argument("scale");
                     final PrintingJob printJob =
                             new PrintingJob(activity, this, (int) call.argument("job"));

@@ -53,6 +53,7 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.nio.ByteBuffer;
+import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 
@@ -302,7 +303,7 @@ public class PrintingJob extends PrintDocumentAdapter {
         callback.onLayoutFinished(info, true);
     }
 
-    void rasterPdf(final byte[] data, final int[] pages, final Double scale) {
+    void rasterPdf(final byte[] data, final ArrayList<Integer> pages, final Double scale) {
         if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) {
             Log.e("PDF", "PDF Raster available since Android 5.0 Lollipop (API 21)");
             printing.onPageRasterEnd(this);
@@ -327,9 +328,9 @@ public class PrintingJob extends PrintDocumentAdapter {
                         Log.e("PDF", "Unable to delete temporary file");
                     }
 
-                    final int pageCount = pages != null ? pages.length : renderer.getPageCount();
+                    final int pageCount = pages != null ? pages.size() : renderer.getPageCount();
                     for (int i = 0; i < pageCount; i++) {
-                        PdfRenderer.Page page = renderer.openPage(pages == null ? i : pages[i]);
+                        PdfRenderer.Page page = renderer.openPage(pages == null ? i : pages.get(i));
 
                         final int width = Double.valueOf(page.getWidth() * scale).intValue();
                         final int height = Double.valueOf(page.getHeight() * scale).intValue();

@@ -30,6 +30,7 @@ class PdfPreview extends StatefulWidget {
     this.pdfPreviewPageDecoration,
     this.pdfFileName,
     this.useActions = true,
+    this.pages,
   }) : super(key: key);
 
   /// Called when a pdf document is needed
@@ -77,6 +78,9 @@ class PdfPreview extends StatefulWidget {
   /// Name of the PDF when sharing. It must include the extension.
   final String pdfFileName;
 
+  /// Pages to display. Default will display all the pages.
+  final List<int> pages;
+
   @override
   _PdfPreviewState createState() => _PdfPreviewState();
 }
@@ -123,7 +127,11 @@ class _PdfPreviewState extends State<PdfPreview> {
     }
 
     var pageNum = 0;
-    await for (final PdfRaster page in Printing.raster(_doc, dpi: dpi)) {
+    await for (final PdfRaster page in Printing.raster(
+      _doc,
+      dpi: dpi,
+      pages: widget.pages,
+    )) {
       if (!mounted) {
         return;
       }

@@ -194,8 +194,9 @@ class PrintingPlugin extends PrintingPlatform {
     final html.CanvasElement canvas =
         js.context['document'].createElement('canvas');
     final html.CanvasRenderingContext2D context = canvas.getContext('2d');
+    final _pages = pages ?? Iterable<int>.generate(numPages, (index) => index);
 
-    for (var i = 0; i < numPages; i++) {
+    for (final i in _pages) {
       final page = await promiseToFuture<PdfJsPage>(d.getPage(i + 1));
       final viewport = page.getViewport(Settings()..scale = 1.5);