Two new features proposed

android/build.gradle

@@ -34,6 +34,6 @@ android {
 }
 
 dependencies {
-    implementation 'com.github.barteksc:android-pdf-viewer:3.2.0-beta.1'
+   implementation 'com.github.mhiew:android-pdf-viewer:3.2.0-beta.1'
 }
 

android/src/main/AndroidManifest.xml

@@ -1,3 +1,4 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="io.endigo.plugins.pdfviewflutter">
+  <!-- <io.endigo.plugins.pdfviewflutter android:id="@+id/pdfView" android:layout_width="0dp" android:layout_height="0dp" android:background="@color/gray_2"/> -->
 </manifest>

android/src/main/java/io/endigo/plugins/pdfviewflutter/FlutterPDFView.java

@@ -3,7 +3,7 @@
 import android.content.Context;
 import android.view.View;
 import android.net.Uri;
-
+import android.graphics.Color;
 import io.flutter.plugin.common.BinaryMessenger;
 import io.flutter.plugin.common.MethodCall;
 import io.flutter.plugin.common.MethodChannel;
@@ -30,9 +30,12 @@ public class FlutterPDFView implements PlatformView, MethodCallHandler {
 
     @SuppressWarnings("unchecked")
     FlutterPDFView(Context context, BinaryMessenger messenger, int id, Map<String, Object> params) {
+        System.out.println(params);
+        System.out.println("Hello, World!");
+
         pdfView = new PDFView(context, null);
         final boolean preventLinkNavigation = getBoolean(params, "preventLinkNavigation");
-
+        pdfView.setBackgroundColor(Color.parseColor(getString(params, "backgroundColor")));
         methodChannel = new MethodChannel(messenger, "plugins.endigo.io/pdfview_" + id);
         methodChannel.setMethodCallHandler(this);
 
@@ -49,6 +52,7 @@ else if (params.get("pdfData") != null) {
         }
 
         if (config != null) {
+
             config
                     .enableSwipe(getBoolean(params, "enableSwipe"))
                     .swipeHorizontal(getBoolean(params, "swipeHorizontal"))
@@ -57,6 +61,10 @@ else if (params.get("pdfData") != null) {
                     .autoSpacing(getBoolean(params, "autoSpacing"))
                     .pageFling(getBoolean(params, "pageFling"))
                     .pageSnap(getBoolean(params, "pageSnap"))
+                    .spacing(getInt(params,"spacingPx"))
+                    // .setBackground(Color.valueOf(0xffff0000))
+                    .enableAntialiasing(true)
+                    // .onDraw(this)
                     .pageFitPolicy(getFitPolicy(params))
                     .enableAnnotationRendering(true)
                     .linkHandler(linkHandler).
@@ -100,7 +108,7 @@ public void onInitiallyRendered(int pages) {
     public View getView() {
         return pdfView;
     }
-
+  
     @Override
     public void onMethodCall(MethodCall methodCall, Result result) {
         switch (methodCall.method) {

example/ios/Flutter/flutter_export_environment.sh

@@ -1,14 +1,13 @@
 #!/bin/sh
 # This is a generated file; do not edit or check into version control.
-export "FLUTTER_ROOT=/Users/endigo/Projects/sdk/flutter"
-export "FLUTTER_APPLICATION_PATH=/Users/endigo/Projects/dart/flutter_pdfview/example"
+export "FLUTTER_ROOT=/Users/theutsavg/Downloads/sdk/flutter"
+export "FLUTTER_APPLICATION_PATH=/Users/theutsavg/Documents/Projects/opensource/flutter_pdfview/example"
 export "COCOAPODS_PARALLEL_CODE_SIGN=true"
-export "FLUTTER_TARGET=/Users/endigo/Projects/dart/flutter_pdfview/example/lib/main.dart"
+export "FLUTTER_TARGET=lib/main.dart"
 export "FLUTTER_BUILD_DIR=build"
 export "FLUTTER_BUILD_NAME=1.0.0"
 export "FLUTTER_BUILD_NUMBER=1.0.0"
-export "DART_DEFINES=RkxVVFRFUl9XRUJfQVVUT19ERVRFQ1Q9dHJ1ZQ=="
 export "DART_OBFUSCATION=false"
-export "TRACK_WIDGET_CREATION=true"
+export "TRACK_WIDGET_CREATION=false"
 export "TREE_SHAKE_ICONS=false"
-export "PACKAGE_CONFIG=/Users/endigo/Projects/dart/flutter_pdfview/example/.dart_tool/package_config.json"
+export "PACKAGE_CONFIG=.dart_tool/package_config.json"

lib/flutter_pdfview.dart

@@ -3,6 +3,7 @@ import 'dart:typed_data';
 
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
+import 'package:flutter/material.dart' hide Widget;
 import 'package:flutter/services.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter/rendering.dart';
@@ -17,7 +18,7 @@ typedef LinkHandlerCallback = void Function(String? uri);
 enum FitPolicy { WIDTH, HEIGHT, BOTH }
 
 class PDFView extends StatefulWidget {
-  const PDFView({
+  PDFView({
     Key? key,
     this.filePath,
     this.pdfData,
@@ -38,9 +39,14 @@ class PDFView extends StatefulWidget {
     this.fitEachPage = true,
     this.defaultPage = 0,
     this.fitPolicy = FitPolicy.WIDTH,
+    this.pageSpacing = 8.0,
     this.preventLinkNavigation = false,
-  })
-      : assert(filePath != null || pdfData != null),
+    this.backgroundColor = Colors.grey,
+  })  : assert(filePath != null || pdfData != null),
+        assert(
+          autoSpacing != false || pageSpacing != 0,
+          'Either use custom spacing or auto spacing',
+        ),
         super(key: key);
 
   @override
@@ -80,19 +86,23 @@ class PDFView extends StatefulWidget {
   final FitPolicy fitPolicy;
   final bool fitEachPage;
   final bool preventLinkNavigation;
+  final num pageSpacing;
+  final Color backgroundColor;
 }
 
 class _PDFViewState extends State<PDFView> {
   final Completer<PDFViewController> _controller =
-  Completer<PDFViewController>();
+      Completer<PDFViewController>();
 
   @override
   Widget build(BuildContext context) {
     if (defaultTargetPlatform == TargetPlatform.android) {
       return PlatformViewLink(
         viewType: 'plugins.endigo.io/pdfview',
-        surfaceFactory: (BuildContext context,
-            PlatformViewController controller,) {
+        surfaceFactory: (
+          BuildContext context,
+          PlatformViewController controller,
+        ) {
           return AndroidViewSurface(
             controller: controller as AndroidViewController,
             gestureRecognizers: widget.gestureRecognizers ??
@@ -108,9 +118,8 @@ class _PDFViewState extends State<PDFView> {
             creationParams: _CreationParams.fromWidget(widget).toMap(),
             creationParamsCodec: const StandardMessageCodec(),
           )
-            ..addOnPlatformViewCreatedListener(params
-                .onPlatformViewCreated)..addOnPlatformViewCreatedListener((
-                int id) {
+            ..addOnPlatformViewCreatedListener(params.onPlatformViewCreated)
+            ..addOnPlatformViewCreatedListener((int id) {
               _onPlatformViewCreated(id);
             })
             ..create();
@@ -141,7 +150,7 @@ class _PDFViewState extends State<PDFView> {
   void didUpdateWidget(PDFView oldWidget) {
     super.didUpdateWidget(oldWidget);
     _controller.future.then(
-            (PDFViewController controller) => controller._updateWidget(widget));
+        (PDFViewController controller) => controller._updateWidget(widget));
   }
 }
 
@@ -178,17 +187,21 @@ class _CreationParams {
 }
 
 class _PDFViewSettings {
-  _PDFViewSettings({this.enableSwipe,
+  _PDFViewSettings({
+    this.enableSwipe,
     this.swipeHorizontal,
     this.password,
+    required this.pageSpacing,
     this.nightMode,
     this.autoSpacing,
     this.pageFling,
     this.pageSnap,
     this.defaultPage,
     this.fitPolicy,
     this.fitEachPage,
-    this.preventLinkNavigation});
+    this.backgroundColor,
+    this.preventLinkNavigation,
+  });
 
   static _PDFViewSettings fromWidget(PDFView widget) {
     return _PDFViewSettings(
@@ -200,6 +213,9 @@ class _PDFViewSettings {
         pageFling: widget.pageFling,
         pageSnap: widget.pageSnap,
         defaultPage: widget.defaultPage,
+        pageSpacing: widget.pageSpacing,
+        backgroundColor: widget.backgroundColor,
+        fitEachPage: widget.fitEachPage,
         fitPolicy: widget.fitPolicy,
         preventLinkNavigation: widget.preventLinkNavigation);
   }
@@ -215,6 +231,8 @@ class _PDFViewSettings {
   final FitPolicy? fitPolicy;
   final bool? fitEachPage;
   final bool? preventLinkNavigation;
+  final num pageSpacing;
+  final Color? backgroundColor;
 
   Map<String, dynamic> toMap() {
     return <String, dynamic>{
@@ -223,11 +241,14 @@ class _PDFViewSettings {
       'password': password,
       'nightMode': nightMode,
       'autoSpacing': autoSpacing,
+      'spacingPx': pageSpacing.toInt(),
       'pageFling': pageFling,
       'pageSnap': pageSnap,
       'defaultPage': defaultPage,
       'fitPolicy': fitPolicy.toString(),
       'fitEachPage': fitEachPage,
+      'backgroundColor':
+          '#${backgroundColor?.value.toRadixString(16).substring(2)}',
       'preventLinkNavigation': preventLinkNavigation
     };
   }
@@ -251,9 +272,10 @@ class _PDFViewSettings {
 }
 
 class PDFViewController {
-  PDFViewController._(int id,
-      this._widget,)
-      : _channel = MethodChannel('plugins.endigo.io/pdfview_$id') {
+  PDFViewController._(
+    int id,
+    this._widget,
+  ) : _channel = MethodChannel('plugins.endigo.io/pdfview_$id') {
     _settings = _PDFViewSettings.fromWidget(_widget);
     _channel.setMethodCallHandler(_onMethodCall);
   }
@@ -314,7 +336,7 @@ class PDFViewController {
 
   Future<bool?> setPage(int page) async {
     final bool? isSet =
-    await _channel.invokeMethod('setPage', <String, dynamic>{
+        await _channel.invokeMethod('setPage', <String, dynamic>{
       'page': page,
     });
     return isSet;