相关疑难解决方法(0)

我知道这个问题是重复的,我没有得到自满的答案.我正在使用Android系统DownloadManager从网络下载文件,它可以正常下载文件.

 private DownloadManager downloadManager;
 Button start;
 Button pause;
 Button resume;

初始化上面的所有按钮

downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
Uri Download_Uri = Uri
                .parse("uri");
DownloadManager.Request request = new DownloadManager.Request(
                Download_Uri);

然后它已被放入下载队列.当转弯即将开始下载

我的问题是,是否有任何简单的方法来暂停下载和恢复下载

downloadManager.pause();
downloadManager.resume();

提前致谢.

有谁知道如何请求字节范围以及HTTP请求？我希望通过请求下载中断的字节范围并从getContent()读取其InputStream来促进在我们的应用程序中恢复下载.

我尝试迭代标题,但它们是null.来源如下.

import java.io.IOException;
import java.io.InputStream;

import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import android.util.Log;

/**
 * @author Kevin Kowalewski
 *
 */
public class DownloadClient {
DefaultHttpClient httpClient;
HttpGet httpGet;
HttpResponse httpResponse;
HttpEntity httpEntity;
InputStream httpInputStream;

private static String LOG_TAG = DownloadClient.class.getName();

public DownloadClient(){
    httpClient = new DefaultHttpClient();
    httpGet = new HttpGet("http://cachefly.cachefly.net/100mb.test");
    for (Header header : httpGet.getAllHeaders()){
        Log.d(LOG_TAG, "--> Header: " + header);
    }

    Log.d(LOG_TAG, "--> Header size is: " + httpGet.getAllHeaders().length);
    try {
        httpResponse …