//累加完成進度?

mFinished += threadInfo.getFinished();

//開始下載

if (conn.getResponseCode() == HttpStatus.SC_PARTIAL_CONTENT) {

//讀取數(shù)據(jù)

Log.i("DownloadTask", "getresponseconde success");

in = conn.getInputStream();

byte[] buffer = new byte[1024 * 4];

int length = 0;

long time = System.currentTimeMillis();

while ((length = in.read(buffer)) != -1) {

Log.i("DownloadTask", " while loop");

//寫入文件

raf.write(buffer, 0, length);

//累加整個文件下載進度 ？？？？？？

mFinished += length;