fl_download

Description:

fl download

fl_download #
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Getting started #
A Flutter plugin that implemented a file download library based on Dio download, simple, convenient,
and fast, ready to use out of the box, suitable for Android, iOS and other platforms.
Usage #
//how to use
void download() {
DownFile().downInfo(
'https://downsc.chinaz.net/files/download/sound1/201305/3055.mp3',
tempFilePath, () async {
if (kDebugMode) {
print(("ok"));
}
});
}
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void main() {
runApp(const MyApp());
}

class MyApp extends StatefulWidget {
const MyApp({super.key});

@override
State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
String _platformVersion = 'Unknown';
final _flDownloadPlugin = FlDownload();

// 获取app临时文件路径
Future getFilePath(type) async {
var filepath =
await getApplicationDocumentsDirectory(); // App内部file:data.com.nufang.zao/file/
var file = Directory('${filepath.path}/$type');
try {
bool exists = await file.exists();
if (!exists) {
await file.create();
}
} catch (e) {
if (kDebugMode) {
print(e);
}
}
return file.path;
}

@override
void initState() {
super.initState();
initPlatformState();
downloadDemo();
}

downloadDemo() async {
String filePath = await getFilePath('download');
String tempFilePath = '$filePath/${12345678}.mp3';
DownFile().downInfo(
'https://downsc.chinaz.net/files/download/sound1/201305/3055.mp3',
tempFilePath, () async {
if (kDebugMode) {
print(("ok"));
}
});
DownFile().downInfo("", filePath, () {
if (kDebugMode) {
print("download success");
}
});
}

// Platform messages are asynchronous, so we initialize in an async method.
Future<void> initPlatformState() async {
String platformVersion;
// Platform messages may fail, so we use a try/catch PlatformException.
// We also handle the message potentially returning null.
try {
platformVersion = await _flDownloadPlugin.getPlatformVersion() ??
'Unknown platform version';
} on PlatformException {
platformVersion = 'Failed to get platform version.';
}

// If the widget was removed from the tree while the asynchronous platform
// message was in flight, we want to discard the reply rather than calling
// setState to update our non-existent appearance.
if (!mounted) return;

setState(() {
_platformVersion = platformVersion;
});
}

@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Plugin example app'),
),
body: Center(
child: Text('Running on: $_platformVersion\n'),
),
),
);
}
}


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