Question

我没有太多关于颤动的经验，我想知道的是有没有办法下载亚马逊s3的视频并将文件保存在手机的内存中，谢谢

这是视频的网址＆＃34; https://s3-us-west-1.amazonaws.com/videos.ecuestre.digital/165-3745-40957-1.mp4＆＃34;

Answer 1

这就是我在flutter中下载二进制文件的方法：在pubspec.yaml中，添加

path_provider: ^0.2.2

包括：

import 'dart:typed_data';
import 'package:flutter/foundation.dart';
import 'package:path_provider/path_provider.dart';

代码：

static var httpClient = new HttpClient();
Future<File> _downloadFile(String url, String filename) async {
  var request = await httpClient.getUrl(Uri.parse(url));
  var response = await request.close();
  var bytes = await consolidateHttpClientResponseBytes(response);
  String dir = (await getApplicationDocumentsDirectory()).path;
  File file = new File('$dir/$filename');
  await file.writeAsBytes(bytes);
  return file;
}

函数consolidateHttpClientResponseBytes（）来自flutter docs： https://docs.flutter.io/flutter/foundation/consolidateHttpClientResponseBytes.html

注意：已编辑为more concise version from Simon Lightfoot

使用flutter从Amazon S3下载文件

1 个答案: