com.google.android.exoplayer2.offline

Class ProgressiveDownloader

java.lang.Object

com.google.android.exoplayer2.offline.ProgressiveDownloader

All Implemented Interfaces:

Downloader

public final class ProgressiveDownloader
extends java.lang.Object
implements Downloader

A downloader for progressive media streams.

Nested Class Summary

Nested classes/interfaces inherited from interface com.google.android.exoplayer2.offline.Downloader

Downloader.ProgressListener

Constructor Summary

Constructors

Constructor and Description
ProgressiveDownloader(java.lang.String uri, java.lang.String customCacheKey, DownloaderConstructorHelper constructorHelper)

Method Summary

Modifier and Type	Method and Description
void	download(Downloader.ProgressListener listener) Downloads the media.
long	getDownloadedBytes() Returns the total number of downloaded bytes, or C.LENGTH_UNSET if it hasn't been calculated yet.
float	getDownloadPercentage() Returns the download percentage, or Float.NaN if it can't be calculated yet.
void	init() Initializes the downloader.
void	remove() Removes all of the downloaded data of the media.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ProgressiveDownloader

public ProgressiveDownloader(java.lang.String uri,
                             java.lang.String customCacheKey,
                             DownloaderConstructorHelper constructorHelper)

Parameters:

uri - Uri of the data to be downloaded.

customCacheKey - A custom key that uniquely identifies the original stream. Used for cache indexing. May be null.

constructorHelper - a DownloaderConstructorHelper instance.

Method Detail

init

public void init()

Description copied from interface: Downloader

Initializes the downloader.

Specified by:

init in interface Downloader

See Also:

Downloader.getDownloadedBytes(), Downloader.getDownloadPercentage()

download

public void download(@Nullable
                     Downloader.ProgressListener listener)
              throws java.lang.InterruptedException,
                     java.io.IOException

Description copied from interface: Downloader

Downloads the media.

Specified by:

download in interface Downloader

Parameters:

listener - If not null, called during download.

Throws:

java.lang.InterruptedException - If the thread has been interrupted.

DownloadException - Thrown if the media cannot be downloaded.

java.io.IOException - Thrown when there is an io error while downloading.

remove

public void remove()

Description copied from interface: Downloader

Removes all of the downloaded data of the media.

Specified by:

remove in interface Downloader

getDownloadedBytes

public long getDownloadedBytes()

Description copied from interface: Downloader

Returns the total number of downloaded bytes, or C.LENGTH_UNSET if it hasn't been calculated yet.

Specified by:

getDownloadedBytes in interface Downloader

See Also:

Downloader.init()

getDownloadPercentage

public float getDownloadPercentage()

Description copied from interface: Downloader

Returns the download percentage, or Float.NaN if it can't be calculated yet. This value can be an estimation.

Specified by:

getDownloadPercentage in interface Downloader

See Also:

Downloader.init()