java.lang.Object
- com.google.android.exoplayer2.upstream.BaseDataSource

All Implemented Interfaces:

DataReader, DataSource

Direct Known Subclasses:

AssetDataSource, ByteArrayDataSource, ContentDataSource, CronetDataSource, DataSchemeDataSource, DefaultHttpDataSource, FakeDataSource, FileDataSource, OkHttpDataSource, RawResourceDataSource, RtmpDataSource, UdpDataSource
```
public abstract class BaseDataSource
extends Object
implements DataSource
```
Base DataSource implementation to keep a list of TransferListeners.
Subclasses must call transferInitializing(DataSpec), transferStarted(DataSpec), bytesTransferred(int), and transferEnded() to inform listeners of data transfers.

Nested Class Summary
- Nested classes/interfaces inherited from interface com.google.android.exoplayer2.upstream.DataSource
  DataSource.Factory

Constructor Summary

Constructors
Modifier Constructor Description

protected BaseDataSource(boolean isNetwork)
Creates base data source.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addTransferListener(TransferListener transferListener)`	Adds a `TransferListener` to listen to data transfers.
`protected void`	`bytesTransferred(int bytesTransferred)`	Notifies listeners that bytes were transferred.
`protected void`	`transferEnded()`	Notifies listeners that a transfer ended.
`protected void`	`transferInitializing(DataSpec dataSpec)`	Notifies listeners that data transfer for the specified `DataSpec` is being initialized.
`protected void`	`transferStarted(DataSpec dataSpec)`	Notifies listeners that data transfer for the specified `DataSpec` started.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.google.android.exoplayer2.upstream.DataReader
read

Methods inherited from interface com.google.android.exoplayer2.upstream.DataSource
close, getResponseHeaders, getUri, open

- Constructor Detail
  - BaseDataSource
```
protected BaseDataSource(boolean isNetwork)
```
    Creates base data source.
    
    Parameters:
    
    isNetwork - Whether the data source loads data through a network.
- Method Detail
  - addTransferListener
```
public final void addTransferListener(TransferListener transferListener)
```
    Description copied from interface: DataSource
    
    Adds a TransferListener to listen to data transfers. This method is not thread-safe.
    
    Specified by:
    
    addTransferListener in interface DataSource
    
    Parameters:
    
    transferListener - A TransferListener.
  - transferInitializing
```
protected final void transferInitializing(DataSpec dataSpec)
```
    Notifies listeners that data transfer for the specified DataSpec is being initialized.
    
    Parameters:
    
    dataSpec - DataSpec describing the data for initializing transfer.
  - transferStarted
```
protected final void transferStarted(DataSpec dataSpec)
```
    Notifies listeners that data transfer for the specified DataSpec started.
    
    Parameters:
    
    dataSpec - DataSpec describing the data being transferred.
  - bytesTransferred
```
protected final void bytesTransferred(int bytesTransferred)
```
    Notifies listeners that bytes were transferred.
    
    Parameters:
    
    bytesTransferred - The number of bytes transferred since the previous call to this method (or if the first call, since the transfer was started).
  - transferEnded
```
protected final void transferEnded()
```
    Notifies listeners that a transfer ended.

Class BaseDataSource

Nested Class Summary

Nested classes/interfaces inherited from interface com.google.android.exoplayer2.upstream.DataSource

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface com.google.android.exoplayer2.upstream.DataReader

Methods inherited from interface com.google.android.exoplayer2.upstream.DataSource

Constructor Detail

BaseDataSource

Method Detail

addTransferListener

transferInitializing

transferStarted

bytesTransferred

transferEnded