nativescript-download-progress

简介

此插件允许您下载大文件并提供进度更新。

Nativescripts http.getFile 方法将数据存储在内存中，这可能导致内存不足异常，并且不提供进度更新。

安装

tns plugin add nativescript-download-progress

示例

import { DownloadProgress } from "nativescript-download-progress";

const dp = new DownloadProgress();
dp.setProgressCallback((progress, url, destination) => {
  console.log("Progress:", progress, "URL:", url, "Destination", destination);
});
dp.downloadFile("http://ipv4.download.thinkbroadband.com/20MB.zip")
  .then((file) => {
    console.log("Success", file);
  })
  .catch((error) => {
    console.log("Error", error);
  });

传递请求头

import { DownloadProgress } from "nativescript-download-progress";

const dp = new DownloadProgress();
dp.setProgressCallback((progress, url, destination) => {
  console.log("Progress:", progress, "URL:", url, "Destination", destination);
});
const url = "http://ipv4.download.thinkbroadband.com/20MB.zip";
const destinationPath = "some/path/to/file.zip";
const requestOptions: RequestOptions = {
  method: "GET",
  headers: {
    Range: "bytes=-",
  },
};
dp.downloadFile(url, requestOptions, destinationPath)
  .then((file) => {
    console.log("Success", file);
  })
  .catch((error) => {
    console.log("Error", error);
  });

Async / Await

import { DownloadProgress } from "nativescript-download-progress";

const dp = new DownloadProgress();
dp.setProgressCallback((progress, url, destination) => {
  console.log("Progress:", progress, "URL:", url, "Destination", destination);
});
try {
  const f = await downloadFile(
    "http://ipv4.download.thinkbroadband.com/20MB.zip"
  );
} catch (e) {
  console.log("Error", error);
}

许可证

Apache 许可证版本 2.0，2004 年 1 月