added subject, body and email parameters in sharePdf

@@ -49,7 +49,10 @@ public class PrintingHandler implements MethodChannel.MethodCallHandler {
                 case "sharePdf": {
                 case "sharePdf": {
                     final byte[] document = call.argument("doc");
                     final byte[] document = call.argument("doc");
                     final String name = call.argument("name");
                     final String name = call.argument("name");
-                    PrintingJob.sharePdf(activity, document, name);
+                    final String subject = call.argument("subject");
+                    final String body = call.argument("body");
+                    final ArrayList<String> emails = call.argument("emails");
+                    PrintingJob.sharePdf(activity, document, name, subject, body, emails);
                     result.success(1);
                     result.success(1);
                     break;
                     break;
                 }
                 }

@@ -207,7 +207,8 @@ public class PrintingJob extends PrintDocumentAdapter {
         printing.onCompleted(PrintingJob.this, false, message);
         printing.onCompleted(PrintingJob.this, false, message);
     }
     }
 
 
-    static void sharePdf(final Context context, final byte[] data, final String name) {
+    static void sharePdf(final Context context, final byte[] data, final String name,
+                         final String subject, final String body, final ArrayList<String> emails) {
         assert name != null;
         assert name != null;
 
 
         try {
         try {
@@ -233,6 +234,9 @@ public class PrintingJob extends PrintDocumentAdapter {
             shareIntent.setType("application/pdf");
             shareIntent.setType("application/pdf");
             shareIntent.putExtra(Intent.EXTRA_STREAM, apkURI);
             shareIntent.putExtra(Intent.EXTRA_STREAM, apkURI);
             shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
             shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+            shareIntent.putExtra(Intent.EXTRA_SUBJECT, subject);
+            shareIntent.putExtra(Intent.EXTRA_TEXT, body);
+            shareIntent.putExtra(Intent.EXTRA_EMAIL, emails != null ? emails.toArray(new String[0]) : null);
             Intent chooserIntent = Intent.createChooser(shareIntent, null);
             Intent chooserIntent = Intent.createChooser(shareIntent, null);
             List<ResolveInfo> resInfoList = context.getPackageManager().queryIntentActivities(
             List<ResolveInfo> resInfoList = context.getPackageManager().queryIntentActivities(
                     chooserIntent, PackageManager.MATCH_DEFAULT_ONLY);
                     chooserIntent, PackageManager.MATCH_DEFAULT_ONLY);

@@ -186,7 +186,7 @@ public class PrintJob: UIPrintPageRenderer, UIPrintInteractionControllerDelegate
         )
         )
     }
     }
 
 
-    static func sharePdf(data: Data, withSourceRect rect: CGRect, andName name: String) {
+    static func sharePdf(data: Data, withSourceRect rect: CGRect, andName name: String, subject: String?, body: String?) {
         let tmpDirURL = URL(fileURLWithPath: NSTemporaryDirectory(), isDirectory: true)
         let tmpDirURL = URL(fileURLWithPath: NSTemporaryDirectory(), isDirectory: true)
         let fileURL = tmpDirURL.appendingPathComponent(name)
         let fileURL = tmpDirURL.appendingPathComponent(name)
 
 
@@ -197,7 +197,8 @@ public class PrintJob: UIPrintPageRenderer, UIPrintInteractionControllerDelegate
             return
             return
         }
         }
 
 
-        let activityViewController = UIActivityViewController(activityItems: [fileURL], applicationActivities: nil)
+        let activityViewController = UIActivityViewController(activityItems: [fileURL, body], applicationActivities: nil)
+        activityViewController.setValue(subject , forKey: "subject")
         if UI_USER_INTERFACE_IDIOM() == .pad {
         if UI_USER_INTERFACE_IDIOM() == .pad {
             let controller: UIViewController? = UIApplication.shared.keyWindow?.rootViewController
             let controller: UIViewController? = UIApplication.shared.keyWindow?.rootViewController
             activityViewController.popoverPresentationController?.sourceView = controller?.view
             activityViewController.popoverPresentationController?.sourceView = controller?.view

@@ -84,7 +84,9 @@ public class PrintingPlugin: NSObject, FlutterPlugin {
                     width: CGFloat((args["w"] as? NSNumber)?.floatValue ?? 0.0),
                     width: CGFloat((args["w"] as? NSNumber)?.floatValue ?? 0.0),
                     height: CGFloat((args["h"] as? NSNumber)?.floatValue ?? 0.0)
                     height: CGFloat((args["h"] as? NSNumber)?.floatValue ?? 0.0)
                 ),
                 ),
-                andName: args["name"] as! String
+                andName: args["name"] as! String,
+                subject: args["subject"] as? String,
+                body: args["body"] as? String
             )
             )
             result(NSNumber(value: 1))
             result(NSNumber(value: 1))
         } else if call.method == "convertHtml" {
         } else if call.method == "convertHtml" {

@@ -159,6 +159,9 @@ class PrintingPlugin extends PrintingPlatform {
     Uint8List bytes,
     Uint8List bytes,
     String filename,
     String filename,
     Rect bounds,
     Rect bounds,
+    String? subject,
+    String? body,
+    List<String>? emails,
   ) async {
   ) async {
     final pdfFile = html.Blob(
     final pdfFile = html.Blob(
       <Uint8List>[Uint8List.fromList(bytes)],
       <Uint8List>[Uint8List.fromList(bytes)],

@@ -73,11 +73,26 @@ abstract class PrintingPlatform extends PlatformInterface {
   /// Opens the native printer picker interface, and returns the URL of the selected printer.
   /// Opens the native printer picker interface, and returns the URL of the selected printer.
   Future<Printer?> pickPrinter(Rect bounds);
   Future<Printer?> pickPrinter(Rect bounds);
 
 
-  /// Displays a platform popup to share the Pdf document to another application
+  /// Displays a platform popup to share the Pdf document to another application.
+  ///
+  /// [subject] will be the email subject if selected application is email.
+  ///
+  /// [body] will be the extra text that can be shared along with the Pdf document.
+  /// For email application [body] will be the email body text.
+  ///
+  /// [emails] will be the list of emails to which you want to share the Pdf document.
+  /// If the selected application is email application then the these [emails] will be
+  /// filled in the to address.
+  ///
+  /// [subject] and [body] will only work for Android and iOS platforms.
+  /// [emails] will only work for Android Platform.
   Future<bool> sharePdf(
   Future<bool> sharePdf(
     Uint8List bytes,
     Uint8List bytes,
     String filename,
     String filename,
     Rect bounds,
     Rect bounds,
+    String? subject,
+    String? body,
+    List<String>? emails,
   );
   );
 
 
   /// Convert an html document to a pdf data
   /// Convert an html document to a pdf data

@@ -225,10 +225,16 @@ class MethodChannelPrinting extends PrintingPlatform {
     Uint8List bytes,
     Uint8List bytes,
     String filename,
     String filename,
     Rect bounds,
     Rect bounds,
+    String? subject,
+    String? body,
+    List<String>? emails,
   ) async {
   ) async {
     final params = <String, dynamic>{
     final params = <String, dynamic>{
       'doc': Uint8List.fromList(bytes),
       'doc': Uint8List.fromList(bytes),
       'name': filename,
       'name': filename,
+      'subject': subject,
+      'body': body,
+      'emails': emails,
       'x': bounds.left,
       'x': bounds.left,
       'y': bounds.top,
       'y': bounds.top,
       'w': bounds.width,
       'w': bounds.width,

@@ -135,11 +135,26 @@ mixin Printing {
     );
     );
   }
   }
 
 
-  /// Displays a platform popup to share the Pdf document to another application
+  /// Displays a platform popup to share the Pdf document to another application.
+  ///
+  /// [subject] will be the email subject if selected application is email.
+  ///
+  /// [body] will be the extra text that can be shared along with the Pdf document.
+  /// For email application [body] will be the email body text.
+  ///
+  /// [emails] will be the list of emails to which you want to share the Pdf document.
+  /// If the selected application is email application then the these [emails] will be
+  /// filled in the to address.
+  ///
+  /// [subject] and [body] will only work for Android and iOS platforms.
+  /// [emails] will only work for Android Platform.
   static Future<bool> sharePdf({
   static Future<bool> sharePdf({
     required Uint8List bytes,
     required Uint8List bytes,
     String filename = 'document.pdf',
     String filename = 'document.pdf',
     Rect? bounds,
     Rect? bounds,
+    String? subject,
+    String? body,
+    List<String>? emails,
   }) {
   }) {
     bounds ??= Rect.fromCircle(center: Offset.zero, radius: 10);
     bounds ??= Rect.fromCircle(center: Offset.zero, radius: 10);
 
 
@@ -147,6 +162,9 @@ mixin Printing {
       bytes,
       bytes,
       filename,
       filename,
       bounds,
       bounds,
+      subject,
+      body,
+      emails,
     );
     );
   }
   }
 
 

@@ -118,7 +118,8 @@ class MockPrinting extends Mock
       true;
       true;
 
 
   @override
   @override
-  Future<bool> sharePdf(Uint8List bytes, String filename, Rect bounds) async =>
+  Future<bool> sharePdf(Uint8List bytes, String filename, Rect bounds,
+          String? subject, String? body, List<String>? emails) async =>
       true;
       true;
 
 
   @override
   @override