Cannot write in /storage/emulated/0/Download #145

jeanchernandez · 2019-08-24T19:52:04Z

🐛 Bug Report

On Android 9.

After permission granted I download a file and try to copy to /storage/emulated/0/Download without success, this is the error:

E/flutter ( 4663): [ERROR:flutter/lib/ui/ui_dart_state.cc(148)] Unhandled Exception: FileSystemException: Cannot copy file to '/storage/emulated/0/Download/lorem-ipsum.pdf', path = '/data/user/0/com.example.tester/app_flutter/lorem-ipsum.pdf' (OS Error: Permission denied, errno = 13)
E/flutter ( 4663): #0 _File.copy. (dart:io/file_impl.dart:336:9)
E/flutter ( 4663): #1 _rootRunUnary (dart:async/zone.dart:1132:38)
E/flutter ( 4663): #2 _CustomZone.runUnary (dart:async/zone.dart:1029:19)
E/flutter ( 4663): #3 _FutureListener.handleValue (dart:async/future_impl.dart:126:18)
E/flutter ( 4663): #4 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:639:45)
E/flutter ( 4663): #5 Future._propagateToListeners (dart:async/future_impl.dart:668:32)
E/flutter ( 4663): #6 Future._completeWithValue (dart:async/future_impl.dart:483:5)
E/flutter ( 4663): #7 Future._asyncComplete. (dart:async/future_impl.dart:513:7)
E/flutter ( 4663): #8 _rootRun (dart:async/zone.dart:1124:13)
E/flutter ( 4663): #9 _CustomZone.run (dart:async/zone.dart:1021:19)
E/flutter ( 4663): #10 _CustomZone.runGuarded (dart:async/zone.dart:923:7)
E/flutter ( 4663): #11 _CustomZone.bindCallbackGuarded. (dart:async/zone.dart:963:23)
E/flutter ( 4663): #12 _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
E/flutter ( 4663): #13 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)

Expected behavior

Copy file to /storage/emulated/0/Download

Reproduction steps

Use this as main.dart:

import 'dart:io';

import 'package:flutter/material.dart';
import 'package:path_provider/path_provider.dart';
import 'package:downloads_path_provider/downloads_path_provider.dart';
import 'package:dio/dio.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:progress_dialog/progress_dialog.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:open_file/open_file.dart';
import 'package:share_extend/share_extend.dart';

FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin;

void main() async {
  flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();

  /// Verificar si la app ha sido abierta por una notificación local agendada
  var notificationAppLaunchDetails = await flutterLocalNotificationsPlugin.getNotificationAppLaunchDetails();
  print (notificationAppLaunchDetails);

  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Prueba Descarga',
      home: HomePage(),
    );
  }
}

class HomePage extends StatefulWidget {
  HomePage({Key key}) : super(key: key);

  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  Dio dio = Dio();
  String _url = "https://www.soundczech.cz/temp/lorem-ipsum.pdf";
  Directory _downloadsDirectory;
  ProgressDialog pr;
  double downloadProgress = 0.0;
  GlobalKey _scaffoldKey = GlobalKey();

  @override
  void initState() {
    super.initState();
    _initDownloadsDirectoryState();
    _initLocalNotifications();

    pr = new ProgressDialog(context, ProgressDialogType.Download);
  }

  Future<void> _initDownloadsDirectoryState() async {
    Directory downloadsDirectory;
    if (Platform.isAndroid) {
      // with this fail:
      // downloadsDirectory = await DownloadsPathProvider.downloadsDirectory;
      downloadsDirectory = await getApplicationDocumentsDirectory();
    } else {
      downloadsDirectory = await getApplicationDocumentsDirectory();
    }
    if (!mounted) return;

    setState(() {
      _downloadsDirectory = downloadsDirectory;
    });
  }

  void _initLocalNotifications() {
    FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin = new FlutterLocalNotificationsPlugin();

    var initializationSettingsAndroid = new AndroidInitializationSettings('app_icon');
    var initializationSettingsIOS = new IOSInitializationSettings(onDidReceiveLocalNotification: _onDidReceiveLocalNotification);

    var initializationSettings = new InitializationSettings(initializationSettingsAndroid, initializationSettingsIOS);
    flutterLocalNotificationsPlugin.initialize(initializationSettings, onSelectNotification: _onSelectNotification);
  }

  Future<dynamic> _onDidReceiveLocalNotification (int id, String title, String body, String payload) {
    print(id);
    print(title);
    print(body);
    print(payload);
    ShareExtend.share(payload, "file");
    return Future.value(payload);
  }

  Future<dynamic> _onSelectNotification(String payload) async {
    print(payload); // payload is the complete file url
    OpenFile.open(payload);
    return Future.value(payload);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      key: _scaffoldKey,
      appBar: AppBar(
        title: Text('Download test'),
      ),
      body: Center(
        child: Container(
          child: RaisedButton(
            child: Text('Download'),
            onPressed: () {
              _askForPermission().then(
                (_has) async {
                  if (_has) {
                    this._download();
                  }
                }
              );
            },
          )
        ),
      ),
    );
  }

  Future<bool> _askForPermission() async {
    bool result = true;
    Map<PermissionGroup, PermissionStatus> permissions;

    if (Platform.isAndroid) {
      PermissionStatus permission = await PermissionHandler().checkPermissionStatus(PermissionGroup.storage);
      if (permission!=PermissionStatus.granted){
        permissions = await PermissionHandler().requestPermissions([PermissionGroup.storage]);
        result = (permissions[PermissionGroup.storage]==PermissionStatus.granted);
      }
    }

    return Future.value(result);
  }

  /// Fires file's download
  void _download () async {
    this.downloadProgress = 0;
    if (mounted) { setState(() {}); }

    pr.show();    
    
    await dio.download(
      this._url,
      "${this._downloadsDirectory.path}/${this._url.split('/').last}",
      options: Options(
        headers: {HttpHeaders.acceptEncodingHeader: "*"}
      ),
      onReceiveProgress: (received, total) async {
        if (total != -1) {
          if (received == total) {
            print("Done!");
            this.downloadProgress = 0;
            pr.update(progress: 100.0, message: "100%");
            pr.hide();
            Future.delayed(Duration(seconds: 1), () {
              try {pr.update(progress: 0.0, message: "0%");} catch(e){}
            });

            var downloadsDirectory = await DownloadsPathProvider.downloadsDirectory;
            String filePath = "${downloadsDirectory.path}/${this._url.split('/').last}";
            try {
              File("${this._downloadsDirectory.path}/${this._url.split('/').last}").copy(filePath);
            } catch(e) {
              /// Always enters here
              print(e);
            }

            _notifyCompletedDownload(
              "File Downloaded",
              "File ${this._url.split('/').last} has been downloaded. Tap to open.",
              payload: "${this._downloadsDirectory.path}/${this._url.split('/').last}"
            );
          } else if (received < total) {
            /// Progress
            this.downloadProgress = (received / total * 100);
            print("${this.downloadProgress.toInt()}%");
            pr.update(progress: this.downloadProgress.toInt().toDouble(), message: "${this.downloadProgress.toInt()}%");
          }
        }
      }
    );
  }

  _notifyCompletedDownload(String title, String body, { String payload: "" }) async {
    var androidPlatformChannelSpecifics = AndroidNotificationDetails(
        '777', 'Downloads', 'Notification channel for downloads',
        importance: Importance.Max,
        priority: Priority.High,
        ticker: 'ticker'
    );
    var iOSPlatformChannelSpecifics = IOSNotificationDetails();
    var platformChannelSpecifics = NotificationDetails(
        androidPlatformChannelSpecifics, iOSPlatformChannelSpecifics);

    await flutterLocalNotificationsPlugin.show(0, title, body, platformChannelSpecifics, payload: payload);
  }
}

this is the dependency list:

  cupertino_icons: ^0.1.2
  permission_handler: ^3.2.2
  progress_dialog: ^1.1.0+1
  path_provider: ^1.1.2
  downloads_path_provider: ^0.1.0
  dio: ^2.1.13
  flutter_local_notifications: ^0.8.2
  share_extend: ^1.0.9
  open_file: ^2.0.2

This is the AndroidManifest.xml:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.tester">

    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
    <uses-permission android:name="android.permission.VIBRATE" />

    <application
        android:name="io.flutter.app.FlutterApplication"
        android:label="tester"
        android:icon="@mipmap/ic_launcher">
        <activity
            android:name=".MainActivity"
            android:launchMode="singleTop"
            android:theme="@style/LaunchTheme"
            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
            android:hardwareAccelerated="true"
            android:windowSoftInputMode="adjustResize">
            <!-- This keeps the window background of the activity showing
                 until Flutter renders its first frame. It can be removed if
                 there is no splash screen (such as the default splash screen
                 defined in @style/LaunchTheme). -->
            <meta-data
                android:name="io.flutter.app.android.SplashScreenUntilFirstFrame"
                android:value="true" />
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
            <intent-filter>
                <action android:name="FLUTTER_NOTIFICATION_CLICK" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

        <provider
                android:name="vn.hunghd.flutterdownloader.DownloadedFileProvider"
                android:authorities="${applicationId}.flutter_downloader.provider"
                android:exported="false"
                android:grantUriPermissions="true">
            <meta-data
                    android:name="android.support.FILE_PROVIDER_PATHS"
                    android:resource="@xml/provider_paths"/>
        </provider>

        <provider
                android:name="androidx.work.impl.WorkManagerInitializer"
                android:authorities="${applicationId}.workmanager-init"
                android:enabled="false"
                android:exported="false" />

        <provider
                android:name="vn.hunghd.flutterdownloader.FlutterDownloaderInitializer"
                android:authorities="${applicationId}.flutter-downloader-init"
                android:exported="false">
            <meta-data
                    android:name="vn.hunghd.flutterdownloader.MAX_CONCURRENT_TASKS"
                    android:value="5" />
        </provider>

        <receiver android:name="com.dexterous.flutterlocalnotifications.ScheduledNotificationBootReceiver">
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED"></action>
            </intent-filter>
        </receiver>

        <receiver android:name="com.dexterous.flutterlocalnotifications.ScheduledNotificationReceiver" />
    </application>
</manifest>

Run, click the button, and the error appears.

Configuration

Version: 1.x

Platform:

📱 iOS
🤖 Android

The text was updated successfully, but these errors were encountered:

b3dl4m · 2020-01-13T13:53:34Z

I'm running into the same issue, but some of my testers are not. May I ask what Android device you're testing it on?

mvanbeusekom · 2020-01-16T14:39:10Z

This is an issue related to actual write permissions on the directory / disk you are trying to write the file too.

This has nothing to do with the user consent to allow an App to write to the disk. Similar issue was solved adding the following attribute to the <application> element in the AndroidManifest.xml file:

android:requestLegacyExternalStorage="true"

More information can also be found here: miguelpruivo/flutter_file_picker#169

ninjaasmoke · 2020-11-17T07:18:28Z

This is an issue related to actual write permissions on the directory / disk you are trying to write the file too.

This has nothing to do with the user consent to allow an App to write to the disk. Similar issue was solved adding the following attribute to the <application> element in the AndroidManifest.xml file:
android:requestLegacyExternalStorage="true"
More information can also be found here: miguelpruivo/flutter_file_picker#169

Hey but the build fails if the minSdkVersion is not 29

fifitie · 2021-11-21T00:26:24Z

import 'dart:io';

import 'package:flutter/material.dart';
import 'package:path_provider/path_provider.dart';
import 'package:downloads_path_provider/downloads_path_provider.dart';
import 'package:dio/dio.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:progress_dialog/progress_dialog.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:open_file/open_file.dart';
import 'package:share_extend/share_extend.dart';

FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin;

void main() async {
  flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();

  /// Verificar si la app ha sido abierta por una notificación local agendada
  var notificationAppLaunchDetails = await flutterLocalNotificationsPlugin.getNotificationAppLaunchDetails();
  print (notificationAppLaunchDetails);

  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Prueba Descarga',
      home: HomePage(),
    );
  }
}

class HomePage extends StatefulWidget {
  HomePage({Key key}) : super(key: key);

  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  Dio dio = Dio();
  String _url = "https://www.soundczech.cz/temp/lorem-ipsum.pdf";
  Directory _downloadsDirectory;
  ProgressDialog pr;
  double downloadProgress = 0.0;
  GlobalKey _scaffoldKey = GlobalKey();

  @override
  void initState() {
    super.initState();
    _initDownloadsDirectoryState();
    _initLocalNotifications();

    pr = new ProgressDialog(context, ProgressDialogType.Download);
  }

  Future<void> _initDownloadsDirectoryState() async {
    Directory downloadsDirectory;
    if (Platform.isAndroid) {
      // with this fail:
      // downloadsDirectory = await DownloadsPathProvider.downloadsDirectory;
      downloadsDirectory = await getApplicationDocumentsDirectory();
    } else {
      downloadsDirectory = await getApplicationDocumentsDirectory();
    }
    if (!mounted) return;

    setState(() {
      _downloadsDirectory = downloadsDirectory;
    });
  }

  void _initLocalNotifications() {
    FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin = new FlutterLocalNotificationsPlugin();

    var initializationSettingsAndroid = new AndroidInitializationSettings('app_icon');
    var initializationSettingsIOS = new IOSInitializationSettings(onDidReceiveLocalNotification: _onDidReceiveLocalNotification);

    var initializationSettings = new InitializationSettings(initializationSettingsAndroid, initializationSettingsIOS);
    flutterLocalNotificationsPlugin.initialize(initializationSettings, onSelectNotification: _onSelectNotification);
  }

  Future<dynamic> _onDidReceiveLocalNotification (int id, String title, String body, String payload) {
    print(id);
    print(title);
    print(body);
    print(payload);
    ShareExtend.share(payload, "file");
    return Future.value(payload);
  }

  Future<dynamic> _onSelectNotification(String payload) async {
    print(payload); // payload is the complete file url
    OpenFile.open(payload);
    return Future.value(payload);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      key: _scaffoldKey,
      appBar: AppBar(
        title: Text('Download test'),
      ),
      body: Center(
        child: Container(
          child: RaisedButton(
            child: Text('Download'),
            onPressed: () {
              _askForPermission().then(
                (_has) async {
                  if (_has) {
                    this._download();
                  }
                }
              );
            },
          )
        ),
      ),
    );
  }

  Future<bool> _askForPermission() async {
    bool result = true;
    Map<PermissionGroup, PermissionStatus> permissions;

    if (Platform.isAndroid) {
      PermissionStatus permission = await PermissionHandler().checkPermissionStatus(PermissionGroup.storage);
      if (permission!=PermissionStatus.granted){
        permissions = await PermissionHandler().requestPermissions([PermissionGroup.storage]);
        result = (permissions[PermissionGroup.storage]==PermissionStatus.granted);
      }
    }

    return Future.value(result);
  }

  /// Fires file's download
  void _download () async {
    this.downloadProgress = 0;
    if (mounted) { setState(() {}); }

    pr.show();    
    
    await dio.download(
      this._url,
      "${this._downloadsDirectory.path}/${this._url.split('/').last}",
      options: Options(
        headers: {HttpHeaders.acceptEncodingHeader: "*"}
      ),
      onReceiveProgress: (received, total) async {
        if (total != -1) {
          if (received == total) {
            print("Done!");
            this.downloadProgress = 0;
            pr.update(progress: 100.0, message: "100%");
            pr.hide();
            Future.delayed(Duration(seconds: 1), () {
              try {pr.update(progress: 0.0, message: "0%");} catch(e){}
            });

            var downloadsDirectory = await DownloadsPathProvider.downloadsDirectory;
            String filePath = "${downloadsDirectory.path}/${this._url.split('/').last}";
            try {
              File("${this._downloadsDirectory.path}/${this._url.split('/').last}").copy(filePath);
            } catch(e) {
              /// Always enters here
              print(e);
            }

            _notifyCompletedDownload(
              "File Downloaded",
              "File ${this._url.split('/').last} has been downloaded. Tap to open.",
              payload: "${this._downloadsDirectory.path}/${this._url.split('/').last}"
            );
          } else if (received < total) {
            /// Progress
            this.downloadProgress = (received / total * 100);
            print("${this.downloadProgress.toInt()}%");
            pr.update(progress: this.downloadProgress.toInt().toDouble(), message: "${this.downloadProgress.toInt()}%");
          }
        }
      }
    );
  }

  _notifyCompletedDownload(String title, String body, { String payload: "" }) async {
    var androidPlatformChannelSpecifics = AndroidNotificationDetails(
        '777', 'Downloads', 'Notification channel for downloads',
        importance: Importance.Max,
        priority: Priority.High,
        ticker: 'ticker'
    );
    var iOSPlatformChannelSpecifics = IOSNotificationDetails();
    var platformChannelSpecifics = NotificationDetails(
        androidPlatformChannelSpecifics, iOSPlatformChannelSpecifics);

    await flutterLocalNotificationsPlugin.show(0, title, body, platformChannelSpecifics, payload: payload);
  }
}

mvanbeusekom · 2021-11-23T09:19:41Z

@fifitie looking at the code you dumped here it looks like you are using a very old (pre-5.0.0, we are currently at 8.3.0) version of the permission handler. I would suggest you update this first.

LuisMiguelSS · 2022-09-19T10:08:29Z

Having the same issue while at version >= 10.0.0

CL-Ali · 2022-09-22T07:34:25Z

I'm running into the same issue, but some of my testers are not. May I ask what Android device you're testing it on?

I am using redmi note 11 (api level 30) and got same issue

mvanbeusekom closed this as completed Jan 16, 2020

mvanbeusekom mentioned this issue Jun 4, 2020

FileSystemException: Cannot open file....(OS Error: Permission denied, errno = 13) #313

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Cannot write in /storage/emulated/0/Download #145

Cannot write in /storage/emulated/0/Download #145

jeanchernandez commented Aug 24, 2019 •

edited

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b3dl4m commented Jan 13, 2020

mvanbeusekom commented Jan 16, 2020

ninjaasmoke commented Nov 17, 2020

fifitie commented Nov 21, 2021 •

edited by mvanbeusekom

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mvanbeusekom commented Nov 23, 2021

LuisMiguelSS commented Sep 19, 2022

CL-Ali commented Sep 22, 2022

Cannot write in /storage/emulated/0/Download #145

Cannot write in /storage/emulated/0/Download #145

Comments

jeanchernandez commented Aug 24, 2019 • edited Loading

🐛 Bug Report

Expected behavior

Reproduction steps

Configuration

b3dl4m commented Jan 13, 2020

mvanbeusekom commented Jan 16, 2020

ninjaasmoke commented Nov 17, 2020

fifitie commented Nov 21, 2021 • edited by mvanbeusekom Loading

mvanbeusekom commented Nov 23, 2021

LuisMiguelSS commented Sep 19, 2022

CL-Ali commented Sep 22, 2022

jeanchernandez commented Aug 24, 2019 •

edited

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fifitie commented Nov 21, 2021 •

edited by mvanbeusekom

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