fix

lib/pages/invoice/payment_pdf_screen.dart

@@ -1,13 +1,16 @@
 import 'dart:async';
 import 'dart:io';
 
+import 'package:dio/dio.dart';
 import 'package:fcs/helpers/theme.dart';
 import 'package:fcs/pages/main/model/main_model.dart';
 import 'package:fcs/pages/widgets/local_text.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:flutter_pdfview/flutter_pdfview.dart';
 import 'package:http/http.dart' as http;
+import 'package:path_provider/path_provider.dart';
 import 'package:provider/provider.dart';
 import 'package:share/share.dart';
 
@@ -45,8 +48,8 @@ class _PaymentPDFScreenState extends State<PaymentPDFScreen>
           IconButton(
             icon: Icon(Icons.file_download),
             onPressed: () async {
-              // var _dir = (await getApplicationDocumentsDirectory()).path;
-              // _downloadFile(widget.path, 'invoice.pdf', _dir);
+              var file = await copyAsset();
+              print('file=> $file');
             },
           ),
           IconButton(
@@ -93,12 +96,6 @@ class _PaymentPDFScreenState extends State<PaymentPDFScreen>
     );
   }
 
-  Future<File> _downloadFile(String url, String filename, String dir) async {
-    var req = await http.Client().get(Uri.parse(url));
-    var file = File('$dir/$filename');
-    return file.writeAsBytes(req.bodyBytes);
-  }
-
   _share(String url) async {
     MainModel mainModel = Provider.of<MainModel>(context, listen: false);
     String appUrl = mainModel.setting.appUrl;
@@ -108,4 +105,13 @@ class _PaymentPDFScreenState extends State<PaymentPDFScreen>
         subject: "Invitation to FCS Logistics App",
         sharePositionOrigin: box.localToGlobal(Offset.zero) & box.size);
   }
+
+  Future<File> copyAsset() async {
+    Directory tempDir = await getTemporaryDirectory();
+    String tempPath = tempDir.path;
+    File tempFile = File('$tempPath/Invoice-A092(A)-32.pdf');
+    ByteData bd = await rootBundle.load('assets/Invoice-A092(A)-32.pdf');
+    await tempFile.writeAsBytes(bd.buffer.asUint8List(), flush: true);
+    return tempFile;
+  }
 }