flutter_download_manager 0.5.0 
flutter_download_manager: ^0.5.0 copied to clipboard
nabilmh.comFlutter Download Manager is a Cross-Platform file downloader with Parallel and Batch Download support. Manage download tasks by url and be notified of status and their progress. Pause, Cancel, Queue a [...]
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) {},
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);
},
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) {},
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) {},
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) {},
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");
}
return Text('Result: ${snapshot.data}');
}
})
],
),
)
],
),
),
);
}
}
class ListItem extends StatelessWidget {
final Function(String) onDownloadPlayPausedPressed;
final Function(String) onDelete;
DownloadTask? downloadTask;
String url = "";
ListItem(
{Key? key,
required this.url,
required this.onDownloadPlayPausedPressed,
required this.onDelete,
this.downloadTask})
: super(key: key);
@override
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.all(8.0),
child: Container(
decoration: BoxDecoration(
border: Border.all(
color: Colors.amber,
),
borderRadius: BorderRadius.all(Radius.circular(20))
), padding: const EdgeInsets.all(8.0),
child: Column(
children: [
Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
url,
overflow: TextOverflow.ellipsis,
),
if (downloadTask != null)
ValueListenableBuilder(
valueListenable: downloadTask!.status,
builder: (context, value, child) {
return Padding(
padding: const EdgeInsets.symmetric(vertical: 8),
child: Text("$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
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likes
0
pub points
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popularity
Publisher
Metadata
Flutter Download Manager is a Cross-Platform file downloader with Parallel and Batch Download support. Manage download tasks by url and be notified of status and their progress. Pause, Cancel, Queue and Resume Downloads.
Repository (GitHub)
View/report issues
License
unknown (license)
