七牛云对象存储SDK，兼容iOS和Android
- 上传大文件
- 进度监听
- 取消上传
无需任何操作
无需任何操作
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:image_picker/image_picker.dart';
import 'package:sy_flutter_qiniu_storage/sy_flutter_qiniu_storage.dart';
void main() => runApp(new MyApp());
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => new _MyAppState();
}
class _MyAppState extends State<MyApp> {
double _process = 0.0;
@override
void initState() {
super.initState();
}
_onUpload() async {
String token = '从服务端获取的token';
File file = await ImagePicker.pickVideo(source: ImageSource.camera);
if (file == null) {
return;
}
final syStorage = new SyFlutterQiniuStorage();
//监听上传进度
syStorage.onChanged().listen((dynamic percent) {
double p = percent;
setState(() {
_process = p;
});
print(percent);
});
String key = DateTime.now().millisecondsSinceEpoch.toString() +
'.' +
file.path.split('.').last;
//上传文件
var result = await syStorage.upload(file.path, token, key);
print(result);
}
//取消上传
_onCancel() {
SyFlutterQiniuStorage.cancelUpload();
}
@override
Widget build(BuildContext context) {
return new MaterialApp(
home: new Scaffold(
appBar: new AppBar(
title: const Text('七牛云存储SDK demo'),
),
body: Padding(
padding: const EdgeInsets.all(8.0),
child: new Column(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: <Widget>[
LinearProgressIndicator(
value: _process,
),
RaisedButton(
child: Text('上传'),
onPressed: _onUpload,
),
RaisedButton(
child: Text('取消上传'),
onPressed: _onCancel,
),
],
),
),
),
);
}
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