3.2.2

lib/pages/ItemPages/item_result_screen.dart

@@ -1,7 +1,14 @@
+// ignore_for_file: unused_local_variable
+
+import 'dart:isolate';
+import 'dart:ui';
+
 import 'package:cssd/config/colors.dart';
 import 'package:cssd/providers/items.dart';
 import 'package:cssd/widgets/ItemScreens/Filter/item_filter_object.dart';
 import 'package:cssd/widgets/ItemScreens/Result/item_data_box.dart';
+import 'package:flutter_downloader/flutter_downloader.dart';
+import 'package:permission_handler/permission_handler.dart';
 
 import '../../config/routes.dart';
 import '../../providers/connectivity.dart';
@@ -25,11 +32,30 @@ class _ItemResultScreenState extends State<ItemResultScreen> {
   bool _isInit = true;
   ScrollController? sc;
   TextEditingController searchCTRL = new TextEditingController();
+  ReceivePort _port = ReceivePort();
 
   @override
   void initState() {
     sc = new ScrollController();
     super.initState();
+    IsolateNameServer.registerPortWithName(_port.sendPort, 'downloader_send_port');
+    _port.listen((dynamic data) {
+    String id = data[0];
+    DownloadTaskStatus status = data[1];
+    int progress = data[2];
+    if (status == DownloadTaskStatus.complete) {
+      print('Downloaded');
+    }
+    setState((){ });
+  });
+
+  FlutterDownloader.registerCallback(downloadCallback);
+  }
+
+  @pragma('vm:entry-point')
+  static void downloadCallback(String id, int status, int progress) {
+    final SendPort? send = IsolateNameServer.lookupPortByName('downloader_send_port');
+    send!.send([id, status, progress]);
   }
 
   @override
@@ -58,6 +84,12 @@ class _ItemResultScreenState extends State<ItemResultScreen> {
     super.didChangeDependencies();
   }
 
+  @override
+  void dispose() {
+    IsolateNameServer.removePortNameMapping('downloader_send_port');
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     final _media = MediaQuery.of(context);
@@ -252,27 +284,30 @@ class ItemResultFloatingButton extends StatelessWidget {
     return Row(
       mainAxisAlignment: MainAxisAlignment.end,
       children: <Widget>[
-        // InkWell(
-        //   customBorder: CircleBorder(),
-        //   onTap: () {
-        //     Provider.of<ItemProvider>(context, listen: false).exportItems();
-        //   },
-        //   child: Container(
-        //     padding: EdgeInsets.all(_deviceBlockSize),
-        //     decoration: BoxDecoration(
-        //       shape: BoxShape.circle,
-        //       color: Colors.black,
-        //     ),
-        //     child: Icon(
-        //       Icons.import_export,
-        //       size: 10 * _deviceBlockSize,
-        //       color: Colors.white,
-        //     ),
-        //   ),
-        // ),
-        // SizedBox(
-        //   width: 2 * _deviceBlockSize,
-        // ),
+        InkWell(
+          customBorder: CircleBorder(),
+          onTap: () async {
+            var status = await Permission.storage.request();
+            if (status.isGranted) {
+              Provider.of<ItemProvider>(context, listen: false).exportItems();
+            }
+          },
+          child: Container(
+            padding: EdgeInsets.all(_deviceBlockSize),
+            decoration: BoxDecoration(
+              shape: BoxShape.circle,
+              color: Colors.black,
+            ),
+            child: Icon(
+              Icons.import_export,
+              size: 10 * _deviceBlockSize,
+              color: Colors.white,
+            ),
+          ),
+        ),
+        SizedBox(
+          width: 2 * _deviceBlockSize,
+        ),
         InkWell(
           customBorder: CircleBorder(),
           onTap: () {