flutter_download_manager 0.5.4 
flutter_download_manager: ^0.5.4 copied to clipboard
nabilmh.comFlutter Download Manager is a Cross-Platform file downloader with resumeable, parallel and batch Download support. Also be notified of download status and progress updates
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter_download_manager/flutter_download_manager.dart';
import 'package:path_provider/path_provider.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
var url2 = "http://download.dcloud.net.cn/HBuilder.9.0.2.macosx_64.dmg";
var url3 =
'https://cdn.jsdelivr.net/gh/flutterchina/flutter-in-action@1.0/docs/imgs/book.jpg';
var url = "http://app01.78x56.com/Xii_2021-03-13%2010%EF%BC%9A41.ipa";
var url4 =
"https://jsoncompare.org/LearningContainer/SampleFiles/Video/MP4/sample-mp4-file.mp4";
var url5 =
"https://jsoncompare.org/LearningContainer/SampleFiles/Video/MP4/Sample-Video-File-For-Testing.mp4";
var downloadManager = DownloadManager();
var savedDir = "";
@override
void initState() {
super.initState();
getApplicationSupportDirectory().then((value) => savedDir = value.path);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text("Flutter Download Manager")),
body: SingleChildScrollView(
child: Column(
children: [
ListItem(
onDownloadPlayPausedPressed: (url) async {
setState(() {
var task = downloadManager.getDownload(url);
if (task != null && !task.status.value.isCompleted) {
switch (task.status.value) {
case DownloadStatus.downloading:
downloadManager.pauseDownload(url);
break;
case DownloadStatus.paused:
downloadManager.resumeDownload(url);
break;
}
} else {
downloadManager.addDownload(url,
"$savedDir/${downloadManager.getFileNameFromUrl(url)}");
}
});
},
onDelete: (url) {
var fileName =
"$savedDir/${downloadManager.getFileNameFromUrl(url)}";
var file = File(fileName);
file.delete();
downloadManager.removeDownload(url);
setState(() {});
},
url: url,
downloadTask: downloadManager.getDownload(url)),
ListItem(
onDownloadPlayPausedPressed: (url) async {
setState(() {
var task = downloadManager.getDownload(url);
if (task != null && !task.status.value.isCompleted) {
switch (task.status.value) {
case DownloadStatus.downloading:
downloadManager.pauseDownload(url);
break;
case DownloadStatus.paused:
downloadManager.resumeDownload(url);
break;
}
} else {
downloadManager.addDownload(url,
"$savedDir/${downloadManager.getFileNameFromUrl(url)}");
}
});
},
onDelete: (url) {
var fileName =
"$savedDir/${downloadManager.getFileNameFromUrl(url)}";
var file = File(fileName);
file.delete();
downloadManager.removeDownload(url);
setState(() {});
},
url: url2,
downloadTask: downloadManager.getDownload(url2)),
Padding(
padding: const EdgeInsets.all(8.0),
child: Column(
children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: Text("Batch Downloads"),
),
ListItem(
onDownloadPlayPausedPressed: (url) async {
setState(() {
var task = downloadManager.getDownload(url);
if (task != null && !task.status.value.isCompleted) {
switch (task.status.value) {
case DownloadStatus.downloading:
downloadManager.pauseDownload(url);
break;
case DownloadStatus.paused:
downloadManager.resumeDownload(url);
break;
}
} else {
downloadManager.addDownload(url,
"$savedDir/${downloadManager.getFileNameFromUrl(url)}");
}
});
},
onDelete: (url) {
var fileName =
"$savedDir/${downloadManager.getFileNameFromUrl(url)}";
var file = File(fileName);
file.delete();
downloadManager.removeDownload(url);
setState(() {});
},
url: url3,
downloadTask: downloadManager.getDownload(url3)),
ListItem(
onDownloadPlayPausedPressed: (url) async {
setState(() {
var task = downloadManager.getDownload(url);
if (task != null && !task.status.value.isCompleted) {
switch (task.status.value) {
case DownloadStatus.downloading:
downloadManager.pauseDownload(url);
break;
case DownloadStatus.paused:
downloadManager.resumeDownload(url);
break;
}
} else {
downloadManager.addDownload(url,
"$savedDir/${downloadManager.getFileNameFromUrl(url)}");
}
});
},
onDelete: (url) {
var fileName =
"$savedDir/${downloadManager.getFileNameFromUrl(url)}";
var file = File(fileName);
file.delete();
downloadManager.removeDownload(url);
setState(() {});
},
url: url4,
downloadTask: downloadManager.getDownload(url4)),
ListItem(
onDownloadPlayPausedPressed: (url) async {
setState(() {
var task = downloadManager.getDownload(url);
if (task != null && !task.status.value.isCompleted) {
switch (task.status.value) {
case DownloadStatus.downloading:
downloadManager.pauseDownload(url);
break;
case DownloadStatus.paused:
downloadManager.resumeDownload(url);
break;
}
} else {
downloadManager.addDownload(url,
"$savedDir/${downloadManager.getFileNameFromUrl(url)}");
}
});
},
onDelete: (url) {
var fileName =
"$savedDir/${downloadManager.getFileNameFromUrl(url)}";
var file = File(fileName);
file.delete();
downloadManager.removeDownload(url);
setState(() {});
},
url: url5,
downloadTask: downloadManager.getDownload(url5)),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
TextButton(
onPressed: () {
downloadManager.addBatchDownloads(
[url3, url4, url5], savedDir);
setState(() {});
},
child: Text("Download All")),
TextButton(
onPressed: () {
downloadManager
.pauseBatchDownloads([url3, url4, url5]);
},
child: Text("Pause All")),
TextButton(
onPressed: () {
downloadManager
.cancelBatchDownloads([url3, url4, url5]);
},
child: Text("Cancel All")),
],
),
ValueListenableBuilder(
valueListenable: downloadManager
.getBatchDownloadProgress([url3, url4, url5]),
builder: (context, value, child) {
return Container(
margin: const EdgeInsets.symmetric(vertical: 4),
child: LinearProgressIndicator(
value: value,
),
);
}),
FutureBuilder<List<DownloadTask?>?>(
future: downloadManager
.whenBatchDownloadsComplete([url3, url4, url5]),
builder: (BuildContext context,
AsyncSnapshot<List<DownloadTask?>?> snapshot) {
switch (snapshot.connectionState) {
case ConnectionState.waiting:
return Text(
'I will wait till the batch downloads have been completed');
default:
if (snapshot.hasError) {
return Text('Error: ${snapshot.error}');
} else {
return snapshot.data != null
? Column(children: [
Text("Result"),
for (var e in snapshot.data!)
e != null
? Padding(
padding:
const EdgeInsets.all(8.0),
child: Text(
"${downloadManager.getFileNameFromUrl(e.request.url)}: ${e.status.value}"),
)
: Text("Not found"),
])
: Text("No Downloads have been found");
}
}
})
],
),
)
],
),
),
);
}
}
class ListItem extends StatelessWidget {
final Function(String) onDownloadPlayPausedPressed;
final Function(String) onDelete;
DownloadTask? downloadTask;
String url = "";
ListItem(
{Key? key,
required this.url,
required this.onDownloadPlayPausedPressed,
required this.onDelete,
this.downloadTask})
: super(key: key);
@override
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.all(8.0),
child: Container(
decoration: BoxDecoration(
border: Border.all(
color: Colors.amber,
),
borderRadius: BorderRadius.all(Radius.circular(20))),
padding: const EdgeInsets.all(8.0),
child: Column(
children: [
Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
url,
overflow: TextOverflow.ellipsis,
),
if (downloadTask != null)
ValueListenableBuilder(
valueListenable: downloadTask!.status,
builder: (context, value, child) {
return Padding(
padding: const EdgeInsets.symmetric(vertical: 8),
child: Text("$value",
style: TextStyle(fontSize: 16)),
);
}),
],
)),
downloadTask != null
? ValueListenableBuilder(
valueListenable: downloadTask!.status,
builder: (context, value, child) {
switch (downloadTask!.status.value) {
case DownloadStatus.downloading:
return IconButton(
onPressed: () {
onDownloadPlayPausedPressed(url);
},
icon: const Icon(Icons.pause));
case DownloadStatus.paused:
return IconButton(
onPressed: () {
onDownloadPlayPausedPressed(url);
},
icon: const Icon(Icons.play_arrow));
case DownloadStatus.completed:
return IconButton(
onPressed: () {
onDelete(url);
},
icon: const Icon(Icons.delete));
case DownloadStatus.failed:
case DownloadStatus.canceled:
return IconButton(
onPressed: () {
onDownloadPlayPausedPressed(url);
},
icon: const Icon(Icons.download));
}
return Text("$value", style: TextStyle(fontSize: 16));
})
: IconButton(
onPressed: () {
onDownloadPlayPausedPressed(url);
},
icon: const Icon(Icons.download))
],
), // if (widget.item.isDownloadingOrPaused)
if (downloadTask != null && !downloadTask!.status.value.isCompleted)
ValueListenableBuilder(
valueListenable: downloadTask!.progress,
builder: (context, value, child) {
return Container(
margin: const EdgeInsets.symmetric(vertical: 4),
child: LinearProgressIndicator(
value: value,
color:
downloadTask!.status.value == DownloadStatus.paused
? Colors.grey
: Colors.amber,
),
);
}),
if (downloadTask != null)
FutureBuilder<DownloadStatus>(
future: downloadTask!.whenDownloadComplete(),
builder: (BuildContext context,
AsyncSnapshot<DownloadStatus> snapshot) {
switch (snapshot.connectionState) {
case ConnectionState.waiting:
return Text(
'I will wait till this download has been completed');
default:
if (snapshot.hasError) {
return Text('Error: ${snapshot.error}');
} else {
return Text('Result: ${snapshot.data}');
}
}
})
],
),
),
);
}
}Metadata
57
likes
100
pub points
92%
popularity
Publisher
Metadata
Flutter Download Manager is a Cross-Platform file downloader with resumeable, parallel and batch Download support. Also be notified of download status and progress updates
Repository (GitHub)
View/report issues
Documentation
License
MIT (LICENSE)
