com.coolerfall.download

接口 Downloader

所有已知实现类:

OkHttpDownloader, URLDownloader

public interface Downloader

A mechanism to download files from network. It's easy to use custom downloader by implementing this interface, and then set it in DownloadManager.

方法概要

限定符和类型	方法和说明
java.io.InputStream	byteStream() Get inputstream supported by downloader.
void	close() Close downloader and stop downloader.
long	contentLength() Get content length for current uri.
Downloader	copy() Make a copy for this downloader.
java.lang.String	detectFilename(android.net.Uri uri) Detect filename from http header/url if existed.
int	start(android.net.Uri uri, long breakpoint) Init downloader and start to download.

方法详细资料

detectFilename

java.lang.String detectFilename(android.net.Uri uri)
                         throws java.io.IOException

Detect filename from http header/url if existed.

返回:

filename to save

抛出:

java.io.IOException

start

int start(android.net.Uri uri,
          long breakpoint)
   throws java.io.IOException

Init downloader and start to download. The downloader should handle redirect status code, such as 301, 302 and so on.

参数:

uri - Uri

breakpoint - breakpoint if exists

返回:

status code

抛出:

java.io.IOException

contentLength

long contentLength()

Get content length for current uri.

返回:

content length

byteStream

java.io.InputStream byteStream()
                        throws java.io.IOException

Get inputstream supported by downloader.

抛出:

java.io.IOException

close

void close()

Close downloader and stop downloader.

copy

Downloader copy()

Make a copy for this downloader.