Flutter：Dio下载文件到本地

import 'dart:io';
import 'package:dio/dio.dart';main(){// 创建dio对象final dio = Dio();// 下载地址var url = 'https://*******.org/files/1.0.0.apk';// 手机端路径String savePath =  Directory.systemTemp.path+'/ceshi.apk';print(savePath);downLoad(dio,url,savePath);
}downLoad(Dio dio,String url,String savePath){dio.download(url, savePath,onReceiveProgress:onReceiveProgress).then((value){print(value);}).whenComplete((){print('下载结束');}).catchError((onError){print(onError);});
}// 下载的进度
void onReceiveProgress(int count, int total) {print('文件大小：$total  当前进度：$count');if(total != -1){print((count / total *100).toStringAsFixed(0)+'%');}
}