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example of using flutter package process: ^5.0.2

Obedient Opossum answered on March 17, 2024 Popularity 1/10 Helpfulness 1/10

answer example of using flutter package process: ^5.0.2

example of using flutter package process: ^5.0.2

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import 'package:dio/dio.dart';
import 'package:downloads_path_provider_28/downloads_path_provider_28.dart';
import 'package:flutter/material.dart';
import 'package:permission_handler/permission_handler.dart';

void main() {
  runApp( MaterialApp(
       home: Home()
  ));
}

class Home extends  StatefulWidget {
  @override
  State<Home> createState() => _HomeState();
}

class _HomeState extends State<Home> {

  String fileurl = "https://fluttercampus.com/sample.pdf";
  //you can save other file formats too.
  @override
  Widget build(BuildContext context) {
    return Scaffold(
         resizeToAvoidBottomInset: false,
         appBar: AppBar(
            title: Text("Download File from URL"),
            backgroundColor: Colors.deepPurpleAccent,
         ),
          body: Container(
             margin: EdgeInsets.only(top:50),
             child: Column(
                 children: [
                      Text("File URL: $fileurl"),
                      Divider(),
                      ElevatedButton(
                         onPressed: () async {
                            Map<Permission, PermissionStatus> statuses = await [
                                Permission.storage, 
                                //add more permission to request here.
                            ].request();

                            if(statuses[Permission.storage]!.isGranted){ 
                                var dir = await DownloadsPathProvider.downloadsDirectory;
                                if(dir != null){
                                      String savename = "file.pdf";
                                      String savePath = dir.path + "/$savename";
                                      print(savePath);
                                      //output:  /storage/emulated/0/Download/banner.png

                                      try {
                                          await Dio().download(
                                              fileurl, 
                                              savePath,
                                              onReceiveProgress: (received, total) {
                                                  if (total != -1) {
                                                      print((received / total * 100).toStringAsFixed(0) + "%");
                                                      //you can build progressbar feature too
                                                  }
                                                });
                                           print("File is saved to download folder.");  
                                     } on DioError catch (e) {
                                       print(e.message);
                                     }
                                }
                            }else{
                               print("No permission to read and write.");
                            }

                         },
                         child: Text("Download File."),
                      )

                 ],
             ),
          )
      );
  }
}

Popularity 1/10 Helpfulness 1/10 Language whatever

Source: www.fluttercampus.com

Tags: using whatever

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Contributed on Mar 17 2024

Obedient Opossum

0 Answers Avg Quality 2/10

example of using flutter package process: ^5.0.2

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