Class ProgressiveDownloader
- java.lang.Object
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- com.google.android.exoplayer2.offline.ProgressiveDownloader
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- All Implemented Interfaces:
Downloader
public final class ProgressiveDownloader extends Object implements Downloader
A downloader for progressive media streams.
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Nested Class Summary
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Nested classes/interfaces inherited from interface com.google.android.exoplayer2.offline.Downloader
Downloader.ProgressListener
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Constructor Summary
Constructors Constructor Description ProgressiveDownloader(MediaItem mediaItem, CacheDataSource.Factory cacheDataSourceFactory)Creates a new instance.ProgressiveDownloader(MediaItem mediaItem, CacheDataSource.Factory cacheDataSourceFactory, Executor executor)Creates a new instance.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidcancel()Permanently cancels the downloading by this downloader.voiddownload(Downloader.ProgressListener progressListener)Downloads the content.voidremove()Removes the content.
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Constructor Detail
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ProgressiveDownloader
public ProgressiveDownloader(MediaItem mediaItem, CacheDataSource.Factory cacheDataSourceFactory)
Creates a new instance.- Parameters:
mediaItem- The media item with a uri to the stream to be downloaded.cacheDataSourceFactory- ACacheDataSource.Factoryfor the cache into which the download will be written.
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ProgressiveDownloader
public ProgressiveDownloader(MediaItem mediaItem, CacheDataSource.Factory cacheDataSourceFactory, Executor executor)
Creates a new instance.- Parameters:
mediaItem- The media item with a uri to the stream to be downloaded.cacheDataSourceFactory- ACacheDataSource.Factoryfor the cache into which the download will be written.executor- AnExecutorused to make requests for the media being downloaded. In the future, providing anExecutorthat uses multiple threads may speed up the download by allowing parts of it to be executed in parallel.
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Method Detail
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download
public void download(@Nullable Downloader.ProgressListener progressListener) throws IOException, InterruptedExceptionDescription copied from interface:DownloaderDownloads the content.If downloading fails, this method can be called again to resume the download. It cannot be called again after the download has been
canceled.If downloading is canceled whilst this method is executing, then it is expected that it will return reasonably quickly. However, there are no guarantees about how the method will return, meaning that it can return without throwing, or by throwing any of its documented exceptions. The caller must use its own knowledge about whether downloading has been canceled to determine whether this is why the method has returned, rather than relying on the method returning in a particular way.
- Specified by:
downloadin interfaceDownloader- Parameters:
progressListener- A listener to receive progress updates, ornull.- Throws:
IOException- If the download failed to complete successfully.InterruptedException- If the download was interrupted.
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cancel
public void cancel()
Description copied from interface:DownloaderPermanently cancels the downloading by this downloader. The caller should also interrupt the downloading thread immediately after calling this method.Once canceled,
Downloader.download(com.google.android.exoplayer2.offline.Downloader.ProgressListener)cannot be called again.- Specified by:
cancelin interfaceDownloader
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remove
public void remove()
Description copied from interface:DownloaderRemoves the content.- Specified by:
removein interfaceDownloader
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